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Karbstein K, Kösters L, Hodač L, Hofmann M, Hörandl E, Tomasello S, Wagner ND, Emerson BC, Albach DC, Scheu S, Bradler S, de Vries J, Irisarri I, Li H, Soltis P, Mäder P, Wäldchen J. Species delimitation 4.0: integrative taxonomy meets artificial intelligence. Trends Ecol Evol 2024:S0169-5347(23)00296-3. [PMID: 38849221 DOI: 10.1016/j.tree.2023.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 10/20/2023] [Accepted: 11/08/2023] [Indexed: 06/09/2024]
Abstract
Although species are central units for biological research, recent findings in genomics are raising awareness that what we call species can be ill-founded entities due to solely morphology-based, regional species descriptions. This particularly applies to groups characterized by intricate evolutionary processes such as hybridization, polyploidy, or asexuality. Here, challenges of current integrative taxonomy (genetics/genomics + morphology + ecology, etc.) become apparent: different favored species concepts, lack of universal characters/markers, missing appropriate analytical tools for intricate evolutionary processes, and highly subjective ranking and fusion of datasets. Now, integrative taxonomy combined with artificial intelligence under a unified species concept can enable automated feature learning and data integration, and thus reduce subjectivity in species delimitation. This approach will likely accelerate revising and unraveling eukaryotic biodiversity.
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Affiliation(s)
- Kevin Karbstein
- Max Planck Institute for Biogeochemistry, Department of Biogeochemical Integration, 07745 Jena, Germany.
| | - Lara Kösters
- Max Planck Institute for Biogeochemistry, Department of Biogeochemical Integration, 07745 Jena, Germany
| | - Ladislav Hodač
- Max Planck Institute for Biogeochemistry, Department of Biogeochemical Integration, 07745 Jena, Germany
| | - Martin Hofmann
- Technical University of Ilmenau, Institute for Computer and Systems Engineering, 98693 Ilmenau, Germany
| | - Elvira Hörandl
- University of Göttingen, Albrecht-von-Haller Institute for Plant Sciences, Department of Systematics, Biodiversity and Evolution of Plants (with Herbarium), 37073 Göttingen, Germany
| | - Salvatore Tomasello
- University of Göttingen, Albrecht-von-Haller Institute for Plant Sciences, Department of Systematics, Biodiversity and Evolution of Plants (with Herbarium), 37073 Göttingen, Germany
| | - Natascha D Wagner
- University of Göttingen, Albrecht-von-Haller Institute for Plant Sciences, Department of Systematics, Biodiversity and Evolution of Plants (with Herbarium), 37073 Göttingen, Germany
| | - Brent C Emerson
- Institute of Natural Products and Agrobiology (IPNA-CSIC), Island Ecology and Evolution Research Group, 38206 La Laguna, Tenerife, Canary Islands, Spain
| | - Dirk C Albach
- Carl von Ossietzky-Universität Oldenburg, Institute of Biology and Environmental Science, 26129 Oldenburg, Germany
| | - Stefan Scheu
- University of Göttingen, Johann-Friedrich-Blumenbach Institute of Zoology and Anthropology, 37073 Göttingen, Germany; University of Göttingen, Centre of Biodiversity and Sustainable Land Use (CBL), 37073 Göttingen, Germany
| | - Sven Bradler
- University of Göttingen, Johann-Friedrich-Blumenbach Institute of Zoology and Anthropology, 37073 Göttingen, Germany
| | - Jan de Vries
- University of Göttingen, Institute for Microbiology and Genetics, Department of Applied Bioinformatics, 37077 Göttingen, Germany; University of Göttingen, Campus Institute Data Science (CIDAS), 37077 Göttingen, Germany; University of Göttingen, Göttingen Center for Molecular Biosciences (GZMB), Department of Applied Bioinformatics, 37077 Göttingen, Germany
| | - Iker Irisarri
- Leibniz Institute for the Analysis of Biodiversity Change (LIB), Centre for Molecular Biodiversity Research, Phylogenomics Section, Museum of Nature, 20146 Hamburg, Germany
| | - He Li
- Eastern China Conservation Centre for Wild Endangered Plant Resources, Chenshan Botanical Garden, 201602 Shanghai, China
| | - Pamela Soltis
- University of Florida, Florida Museum of Natural History, 32611 Gainesville, USA
| | - Patrick Mäder
- Technical University of Ilmenau, Institute for Computer and Systems Engineering, 98693 Ilmenau, Germany; German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Puschstrasse 4, 04103 Leipzig, Germany; Friedrich Schiller University Jena, Faculty of Biological Sciences, Institute of Ecology and Evolution, Philosophenweg 16, 07743 Jena, Germany
| | - Jana Wäldchen
- Max Planck Institute for Biogeochemistry, Department of Biogeochemical Integration, 07745 Jena, Germany; German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Puschstrasse 4, 04103 Leipzig, Germany
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2
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Collienne L, Whidden C, Gavryushkin A. Ranked Subtree Prune and Regraft. Bull Math Biol 2024; 86:24. [PMID: 38294587 PMCID: PMC10830682 DOI: 10.1007/s11538-023-01244-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 12/06/2023] [Indexed: 02/01/2024]
Abstract
Phylogenetic trees are a mathematical formalisation of evolutionary histories between organisms, species, genes, cancer cells, etc. For many applications, e.g. when analysing virus transmission trees or cancer evolution, (phylogenetic) time trees are of interest, where branch lengths represent times. Computational methods for reconstructing time trees from (typically molecular) sequence data, for example Bayesian phylogenetic inference using Markov Chain Monte Carlo (MCMC) methods, rely on algorithms that sample the treespace. They employ tree rearrangement operations such as [Formula: see text] (Subtree Prune and Regraft) and [Formula: see text] (Nearest Neighbour Interchange) or, in the case of time tree inference, versions of these that take times of internal nodes into account. While the classic [Formula: see text] tree rearrangement is well-studied, its variants for time trees are less understood, limiting comparative analysis for time tree methods. In this paper we consider a modification of the classical [Formula: see text] rearrangement on the space of ranked phylogenetic trees, which are trees equipped with a ranking of all internal nodes. This modification results in two novel treespaces, which we propose to study. We begin this study by discussing algorithmic properties of these treespaces, focusing on those relating to the complexity of computing distances under the ranked [Formula: see text] operations as well as similarities and differences to known tree rearrangement based treespaces. Surprisingly, we show the counterintuitive result that adding leaves to trees can actually decrease their ranked [Formula: see text] distance, which may have an impact on the results of time tree sampling algorithms given uncertain "rogue taxa".
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Affiliation(s)
- Lena Collienne
- Biological Data Science Laboratory, School of Mathematics and Statistics, University of Canterbury, Christchurch, New Zealand.
| | - Chris Whidden
- Faculty of Computer Science, Dalhousie University, Halifax, Canada
| | - Alex Gavryushkin
- Biological Data Science Laboratory, School of Mathematics and Statistics, University of Canterbury, Christchurch, New Zealand
- Biomathematics Research Centre, University of Canterbury, Christchurch, New Zealand
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3
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Magalhães RF, K S Ramos E, Bandeira LN, Ferreira JS, Werneck FP, Anciães M, Bruschi DP. Integrative species delimitation uncovers hidden diversity within the Pithecopus hypochondrialis species complex (Hylidae, Phyllomedusinae) and its phylogeography reveals Plio-Pleistocene connectivity among Neotropical savannas. Mol Phylogenet Evol 2024; 190:107959. [PMID: 37918682 DOI: 10.1016/j.ympev.2023.107959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 10/25/2023] [Accepted: 10/27/2023] [Indexed: 11/04/2023]
Abstract
Despite their limited vagility and pronounced habitat heterogeneity in the tropics, many anuran species have unexpectedly extensive geographic ranges. One prominent example of this phenomenon is Pithecopus hypochondrialis, which is found in the Cerrado, Guianan savanna, and Llanos domains, as well as isolated tracts of savanna and open habitat within the Amazon Forest. The present study employs an integrative species delimitation approach to test the hypothesis that P. hypochondrialis is in fact a species complex. We also reconstruct the relationships among the lineages delimited here and other Pithecopus species. In this study, we employ Ecological Niche Modelling (ENM) and spatiotemporal phylogeographic reconstruction approaches to evaluate a multitude of scenarios of connectivity across the Neotropical savannas. We identified three divergent lineages, two of which have been described previously. The lineages were allocated to a lowland Pithecopus clade, although the relationships among these lineages are weakly supported. Both the ENM and the phylogeographic reconstruction highlight the occurrence of periods of connectivity among the Neotropical savannas over the course of the Pliocene and Pleistocene epochs. These processes extended from eastern Amazonia to the northern coast of Brazil. The findings of the present study highlight the presence of hidden diversity within P. hypochondrialis, and reinforce the need for a comprehensive taxonomic review. These findings also indicate intricate and highly dynamic patterns of connectivity across the Neotropical savannas that date back to the Pliocene.
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Affiliation(s)
- Rafael F Magalhães
- Department of Natural Sciences, Universidade Federal de São João del-Rei, Campus Dom Bosco, Praça Dom Helvécio, 70, São João del-Rei, MG 36301-160, Brazil; Postgraduate Programme in Zoology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6627, Belo Horizonte, MG 31270-010, Brazil.
| | - Elisa K S Ramos
- Faculty of Philosophy and Natural Sciences, Department of Environmental Sciences, University of Basel, Bernoullistrasse 30, Basel 4056, Switzerland.
| | - Lucas N Bandeira
- Postgraduate Programme in Ecology, Instituto Nacional de Pesquisas da Amazônia, Avenida André Araújo, 2936, Manaus, AM 69067-375, Brazil.
| | - Johnny S Ferreira
- Postgraduate Programme in Genetics, Department of Genetics, Biological Sciences Sector, Universidade Federal do Paraná, Caixa Postal 19071, Curitiba, PR 81531-980, Brazil.
| | - Fernanda P Werneck
- Postgraduate Programme in Ecology, Instituto Nacional de Pesquisas da Amazônia, Avenida André Araújo, 2936, Manaus, AM 69067-375, Brazil; Scientific Biological Collections Program, Biodiversity Coordination, Instituto Nacional de Pesquisas da Amazônia, Avenida André Araújo, 2936, Manaus, AM 69067-375, Brazil.
| | - Marina Anciães
- Postgraduate Programme in Ecology, Instituto Nacional de Pesquisas da Amazônia, Avenida André Araújo, 2936, Manaus, AM 69067-375, Brazil; Scientific Biological Collections Program, Biodiversity Coordination, Instituto Nacional de Pesquisas da Amazônia, Avenida André Araújo, 2936, Manaus, AM 69067-375, Brazil.
| | - Daniel P Bruschi
- Postgraduate Programme in Genetics, Department of Genetics, Biological Sciences Sector, Universidade Federal do Paraná, Caixa Postal 19071, Curitiba, PR 81531-980, Brazil.
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Ito Y, Tanaka N. Phylogeny of Alisma (Alismataceae) revisited: implications for polyploid evolution and species delimitation. JOURNAL OF PLANT RESEARCH 2023; 136:613-629. [PMID: 37402089 DOI: 10.1007/s10265-023-01477-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 06/27/2023] [Indexed: 07/05/2023]
Abstract
Alisma L. is a genus of aquatic and wetland plants belonging to family Alismataceae. At present, it is thought to contain ten species. Variation in ploidy level is known in the genus, with diploids, tetraploids and hexaploids recorded. Previous molecular phylogenetic studies of Alisma have generated a robust backbone that reveals important aspects of the evolutionary history of this cosmopolitan genus, yet questions remain unresolved about the formation of the polyploid taxa and the taxonomy of one particularly challenging, widely distributed species complex. Here we directly sequenced, or cloned and sequenced, nuclear DNA (nrITS and phyA) and chloroplast DNA (matK, ndhF, psbA-trnH and rbcL) of multiple samples of six putative species and two varieties, and conducted molecular phylogenetic analyses. Alisma canaliculatum and its two varieties known in East Asia and A. rariflorum endemic to Japan possess closely related but heterogeneous genomes, strongly indicating that the two species were generated from two diploid progenitors, and are possibly siblings of one another. This evolutionary event may have occurred in Japan. Alisma canaliculatum var. canaliculatum is segregated into two types, each of which are geographically slightly differentiated in Japan. We reconstructed a single phylogeny based on the multi-locus data using Homologizer and then applied species delimitation analysis (STACEY). This allowed us to discern A. orientale as apparently endemic to the Southeast Asian Massif and distinct from the widespread A. plantago-aquatica. The former species was most likely formed through parapatric speciation at the southern edge of the distribution of the latter.
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Affiliation(s)
- Yu Ito
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-Cho, Hirakata, Osaka, 573-0101, Japan.
| | - Norio Tanaka
- Department of Botany, National Museum of Nature and Science, Tsukuba, 305-0005, Japan
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Martínez‐Borrego D, Arellano E, González‐Cózatl FX, Ospina‐Garcés SM, Rogers DS. Species delimitation and integrative taxonomy of the Reithrodontomys mexicanus (Rodentia: Cricetidae) cryptic complex. Ecol Evol 2023; 13:e10355. [PMID: 37529589 PMCID: PMC10387591 DOI: 10.1002/ece3.10355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 06/12/2023] [Accepted: 07/12/2023] [Indexed: 08/03/2023] Open
Abstract
Species boundaries are difficult to establish in groups with very similar morphology. As an alternative, it has been suggested to integrate multiple sources of data to clarify taxonomic problems in taxa where cryptic speciation processes have been reported. This is the case of the harvest mouse Reithrodontomys mexicanus, which has a problematic taxonomy history as it is considered a complex species. Here, we evaluate the cryptic diversity of R. mexicanus using an integrative taxonomy approach in order to detect candidate lineages at the species level. The molecular analysis used one mitochondrial (cytb) and two nuclear (Fgb-I7 and IRBP) genes. Species hypotheses were suggested based on three molecular delimitation methods (mPTP, bGMYC, and STACEY) and cytb genetic distance values. Skull and environmental space differences between the delimited species were also tested to complement the discrimination of candidate species. Based on the consensus across the delimitation methods and genetic distance values, four species were proposed, which were mostly supported by morphometric and ecological data: R. mexicanus clade I, R. mexicanus clade IIA, R. mexicanus clade IIIA, and R. mexicanus clade IIIB. In addition, the evolutionary relationships between the species that comprise the R. mexicanus group were discussed from a phylogenetic approach. Our findings present important taxonomic implications for Reithrodontomys, as the number of known species for this genus increases. Furthermore, we highlight the importance of the use of multiple sources of data in systematic studies to establish robust delimitations between species considered taxonomically complex.
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Affiliation(s)
- Daily Martínez‐Borrego
- Centro de Investigación en Biodiversidad y ConservaciónUniversidad Autónoma del Estado de MorelosCuernavacaMorelosMexico
| | - Elizabeth Arellano
- Centro de Investigación en Biodiversidad y ConservaciónUniversidad Autónoma del Estado de MorelosCuernavacaMorelosMexico
| | - Francisco X. González‐Cózatl
- Centro de Investigación en Biodiversidad y ConservaciónUniversidad Autónoma del Estado de MorelosCuernavacaMorelosMexico
| | | | - Duke S. Rogers
- Department of Biology and Monte L Bean Life Science MuseumBrigham Young UniversityProvoUtahUSA
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Carneiro J, Sampaio I, Silva-Júnior JDSE, Martins-Junior A, Farias I, Hrbek T, Boubli J, Schneider H. Molecular Evidence Supports Five Lineages within Chiropotes (Pitheciidae, Platyrrhini). Genes (Basel) 2023; 14:1309. [PMID: 37510215 PMCID: PMC10379672 DOI: 10.3390/genes14071309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 06/06/2023] [Accepted: 06/08/2023] [Indexed: 07/30/2023] Open
Abstract
Pitheciines have unique dental specializations among New World monkeys that allow them to feed on fruits with hard pericarps, thus playing a major role as seed predators. The three extant pitheciine genera, Pithecia, Cacajao and Chiropotes, are all endemic to the Amazon region. Because of the uncertainties about interspecific relationships, we reviewed the systematics and taxonomy of the genus Chiropotes. The phylogenetic analyses were performed based on Maximum Likelihood and Bayesian Inference, while species delimitation analyses were carried out using multispecies coalescent methods. In addition, we estimated genetic distances, divergence time and the probable ancestral distribution of this genus. Our results support five species of Chiropotes that emerged during the Plio-Pleistocene. Biogeographic estimates suggest that the ancestor of the current Chiropotes species occupied the endemism areas from Rondônia and Tapajós. Later, subsequent radiation and founder effects associated with the formation of the Amazonian basins probably determined the speciation events within Chiropotes.
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Affiliation(s)
- Jeferson Carneiro
- Institute of Coastal Studies, University Campus of Bragança, Federal University of Pará, Belém 66075-110, Pará, Brazil
| | - Iracilda Sampaio
- Institute of Coastal Studies, University Campus of Bragança, Federal University of Pará, Belém 66075-110, Pará, Brazil
| | | | - Antonio Martins-Junior
- Federal Institute of Education, Science and Technology of Pará, Campus Tucuruí, Tucuruí 68455-210, Pará, Brazil
| | - Izeni Farias
- Laboratório de Evolução e Genética Animal, Federal University of Amazonas, Manaus 69067-005, Amazonas, Brazil
| | - Tomas Hrbek
- Laboratório de Evolução e Genética Animal, Federal University of Amazonas, Manaus 69067-005, Amazonas, Brazil
| | - Jean Boubli
- School of Environment and Life Sciences, University of Salford, Salford M5 4WT, UK
| | - Horacio Schneider
- Institute of Coastal Studies, University Campus of Bragança, Federal University of Pará, Belém 66075-110, Pará, Brazil
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Monjaraz-Ruedas R, Mendez RW, Hedin M. Species delimitation, biogeography, and natural history of dwarf funnel web spiders (Mygalomorphae, Hexurellidae, Hexurella) from the United States / Mexico borderlands. Zookeys 2023; 1167:109-157. [PMID: 37363739 PMCID: PMC10285686 DOI: 10.3897/zookeys.1167.103463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 04/29/2023] [Indexed: 06/28/2023] Open
Abstract
The rarely encountered spider genus Hexurella Gertsch & Platnick, 1979 includes some of the smallest mygalomorph spiders in the world, with four poorly known taxa from central and southeastern montane Arizona, southern California, and northern Baja California Norte. At time of description the genus was known from fewer than 20 individuals, with sparse natural history information suggesting a vagrant, web-building, litter-dwelling natural history. Here the first published taxonomic and natural history information for this taxon is provided in more than 50 years, working from extensive new geographic sampling, consideration of male and female morphology, and sequence capture-based nuclear phylogenomics and mitogenomics. Several new species are easily diagnosed based on distinctive male morphologies, while a complex of populations from central and northern Arizona required an integrative combination of genomic algorithmic species delimitation analyses and morphological study. Four new species are described, including H.ephedrasp. nov., H.uwiiltilsp. nov., H.xericasp. nov., and H.zassp. nov. Females of H.encina Gertsch & Platnick, 1979 are also described for the first time. It is predicted that additional new species will ultimately be found in the mountains of central and northwestern Arizona, northern mainland Mexico, and the Mojave Desert of California.
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Affiliation(s)
- Rodrigo Monjaraz-Ruedas
- Department of Biology, San Diego State University, San Diego, California 92182–4614, USASan Diego State UniversitySan DiegoUnited States of America
| | | | - Marshal Hedin
- Department of Biology, San Diego State University, San Diego, California 92182–4614, USASan Diego State UniversitySan DiegoUnited States of America
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De Lange R, Kleine J, Hampe F, Asselman P, Manz C, De Crop E, Delgat L, Adamčík S, Verbeken A. Stop black and white thinking: Russula subgenus Compactae ( Russulaceae, Russulales) in Europe revised. PERSOONIA 2023; 51:152-193. [PMID: 38665979 PMCID: PMC11041895 DOI: 10.3767/persoonia.2023.51.04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 02/10/2023] [Indexed: 04/28/2024]
Abstract
Russula subgenus Compactae is a group of ectomycorrhizal basidiomycetes, usually with large pileate fruitbodies. European members of the group are characterised by the absence of bright colours on the surfaces of their pilei, the context turning grey to black after cutting, the abundance of short lamellulae in the hymenophore, and spores with an inamyloid suprahilar spot and with low reticulate ornamentation. Our multi-locus phylogenetic study confirmed that this morphological delimitation corresponds to a well-supported clade. Within this clade, 16 species are recognised in Europe, of which five belong to the R. albonigra lineage and were described in a previous study, while eleven are fully described in this study. The application of the names R. acrifolia, R. adusta, R. anthracina, R. atramentosa, R. densissima, R. nigricans and R. roseonigra is based on the position of sequences retrieved from types or authentic material. Based on type sequences, R. fuliginosa is synonymised with R. anthracina and two varieties of R. anthracina are considered synonyms of R. atramentosa. The application of the name R. densifolia is based on a morphological match with the traditional species interpretation and the neotype specimen. Three species are described as new, R. marxmuelleriana sp. nov., R. picrophylla sp. nov. and R. thuringiaca sp. nov. This study recognises three major lineages and two species with isolated positions within the European Compactae and a morphological barcode was assigned to the species using an analysis of 23 selected characters. A search of publicly available sequences from the UNITE database revealed that the majority of species are host tree generalists and widely distributed in temperate and Mediterranean areas of Europe. Russula adusta is the only species so far proven to form ectomycorrhiza exclusively with conifers. Citation: De Lange R, Kleine J, Hampe F, et al. 2023. Stop black and white thinking: Russula subgenus Compactae (Russulaceae, Russulales) in Europe revised. Persoonia 51: 152-193. doi: 10.3767/persoonia.2023.51.04.
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Affiliation(s)
- R. De Lange
- Ghent University, Department of Biology, Research Group Mycology, K.L. Ledeganckstraat 35, 9000 Ghent, Belgium
| | - J. Kleine
- Am Lindenhof 9, 04277 Leipzig, Germany
| | - F. Hampe
- Wetzlarer Straße 1,35510 Butzbach, Germany
| | - P. Asselman
- Ghent University, Department of Biology, Research Group Mycology, K.L. Ledeganckstraat 35, 9000 Ghent, Belgium
| | - C. Manz
- Goethe University, Faculty of Biological Sciences, Research Group Mycology, Max-von-Laue-Str. 13, 60438 Frankfurt am Main, Germany
| | - E. De Crop
- Ghent University, Department of Biology, Research Group Mycology, K.L. Ledeganckstraat 35, 9000 Ghent, Belgium
| | - L. Delgat
- Ghent University, Department of Biology, Research Group Mycology, K.L. Ledeganckstraat 35, 9000 Ghent, Belgium
- Meise Botanic Garden, Research Department, Nieuwelaan 38, 1860 Meise, Belgium
| | - S. Adamčík
- Slovak Academy of Sciences, Plant Science and Biodiversity Centre, Institute of Botany, Dúbravská cesta 9, 845 23 Bratislava, Slovakia
- Comenius University Bratislava, Faculty of Natural Sciences, Department of Botany, Révová 39, 81102 Bratislava, Slovakia
| | - A. Verbeken
- Ghent University, Department of Biology, Research Group Mycology, K.L. Ledeganckstraat 35, 9000 Ghent, Belgium
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Zhao Z, Conradie W, Pietersen DW, Jordaan A, Nicolau G, Edwards S, Riekert S, Heideman N. Diversification of the African legless skinks in the subfamily Acontinae (Family Scincidae). Mol Phylogenet Evol 2023; 182:107747. [PMID: 36849095 DOI: 10.1016/j.ympev.2023.107747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 02/15/2023] [Accepted: 02/22/2023] [Indexed: 02/27/2023]
Abstract
Cladogenic diversification is often explained by referring to climatic oscillations and geomorphic shifts that cause allopatric speciation. In this regard, southern Africa retains a high level of landscape heterogeneity in vegetation, geology, and rainfall patterns. The legless skink subfamily Acontinae occurs broadly across the southern African subcontinent and therefore provides an ideal model group for investigating biogeographic patterns associated with the region. A robust phylogenetic study of the Acontinae with comprehensive coverage and adequate sampling of each taxon has been lacking up until now, resulting in unresolved questions regarding the subfamily's biogeography and evolution. In this study, we used multi-locus genetic markers (three mitochondrial and two nuclear) with comprehensive taxon coverage (all currently recognized Acontinae species) and adequate sampling (multiple specimens for most taxa) of each taxon to infer a phylogeny for the subfamily. The phylogeny retrieved four well-supported clades in Acontias and supported the monophyly of Typhlosaurus. Following the General Lineage Concept (GLC), many long-standing phylogenetic enigmas within Acontias occidentalis and the A. kgalagadi, A. lineatus and A. meleagris species complexes, and within Typhlosaurus were resolved. Our species delimitation analyses suggest the existence of hidden taxa in the A. occidentalis, A. cregoi and A. meleagris species groups, but also suggest that some currently recognized species in the A. lineatus and A. meleagris species groups, and within Typhlosaurus, should be synonymised. We also possibly encountered "ghost introgression" in A. occidentalis. Our inferred species tree revealed a signal of gene flow, which implies possible cross-over in some groups. Fossil evidence calibration dating results showed that the divergence between Typhlosaurus and Acontias was likely influenced by cooling and increasing aridity along the southwest coast in the mid-Oligocene caused by the opening of the Drake Passage. Further cladogenesis observed in Typhlosaurus and Acontias was likely influenced by Miocene cooling, expansion of open habitat, uplifting of the eastern Great Escarpment (GE), and variation in rainfall patterns, together with the effect of the warm Agulhas Current since the early Miocene, the development of the cold Benguela Current since the late Miocene, and their co-effects. The biogeographic pattern of the Acontinae bears close resemblance to that of other herpetofauna (e.g., rain frogs and African vipers) in southern Africa.
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Affiliation(s)
- Zhongning Zhao
- Department of Zoology and Entomology, University of the Free State, Bloemfontein, South Africa; Department of Genetics, University of the Free State, Bloemfontein, South Africa.
| | - Werner Conradie
- Port Elizabeth Museum (Bayworld), P.O. Box 13147, Humewood, Port Elizabeth 6013, South Africa; Department of Nature Conservation Management, Natural Resource Science and Management Cluster, Faculty of Science, George Campus, Nelson Mandela University, George, South Africa
| | - Darren W Pietersen
- Department of Zoology and Entomology, University of Pretoria, Private Bag X20, Hatfield 0028, South Africa
| | - Adriaan Jordaan
- Department of Zoology and Entomology, University of the Free State, Bloemfontein, South Africa
| | - Gary Nicolau
- Zoology & Entomology Molecular Lab, Department of Zoology and Entomology, Rhodes University, Makhanda, South Africa
| | - Shelley Edwards
- Zoology & Entomology Molecular Lab, Department of Zoology and Entomology, Rhodes University, Makhanda, South Africa
| | - Stephanus Riekert
- Department of Information and Communication Technology Services, University of the Free State, Bloemfontein, South Africa
| | - Neil Heideman
- Department of Zoology and Entomology, University of the Free State, Bloemfontein, South Africa
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Geometric Morphometric Versus Genomic Patterns in a Large Polyploid Plant Species Complex. BIOLOGY 2023; 12:biology12030418. [PMID: 36979110 PMCID: PMC10045763 DOI: 10.3390/biology12030418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/06/2023] [Accepted: 03/07/2023] [Indexed: 03/12/2023]
Abstract
Plant species complexes represent a particularly interesting example of taxonomically complex groups (TCGs), linking hybridization, apomixis, and polyploidy with complex morphological patterns. In such TCGs, mosaic-like character combinations and conflicts of morphological data with molecular phylogenies present a major problem for species classification. Here, we used the large polyploid apomictic European Ranunculus auricomus complex to study relationships among five diploid sexual progenitor species and 75 polyploid apomictic derivate taxa, based on geometric morphometrics using 11,690 landmarked objects (basal and stem leaves, receptacles), genomic data (97,312 RAD-Seq loci, 48 phased target enrichment genes, 71 plastid regions) from 220 populations. We showed that (1) observed genomic clusters correspond to morphological groupings based on basal leaves and concatenated traits, and morphological groups were best resolved with RAD-Seq data; (2) described apomictic taxa usually overlap within trait morphospace except for those taxa at the space edges; (3) apomictic phenotypes are highly influenced by parental subgenome composition and to a lesser extent by climatic factors; and (4) allopolyploid apomictic taxa, compared to their sexual progenitor, resemble a mosaic of ecological and morphological intermediate to transgressive biotypes. The joint evaluation of phylogenomic, phenotypic, reproductive, and ecological data supports a revision of purely descriptive, subjective traditional morphological classifications.
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11
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Gorring PS, Farrell BD. Evaluating species boundaries using coalescent delimitation in pine-killing Monochamus (Coleoptera: Cerambycidae) sawyer beetles. Mol Phylogenet Evol 2023; 184:107777. [PMID: 36990304 DOI: 10.1016/j.ympev.2023.107777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 02/18/2023] [Accepted: 03/24/2023] [Indexed: 03/30/2023]
Abstract
Plant-feeding beetle species are diverse and often individually highly variable. Accurate classifications can be difficult to establish yet are essential for study of evolutionary patterns and processes. Molecular data are key to further characterizing morphologically difficult groups and defining genus and species boundaries. Monochamus Dejean species are ecologically and economically significant, and in coniferous forests they vector the nematode that causes Pine Wilt Disease. This study uses nuclear and mitochondrial genes to test the monophyly and relationships of Monochamus and applies coalescent methods to further delimit the conifer-feeding species. Monochamus has also included approximately 120 Old World species associated with diverse angiosperm tree species. We sample from these additional morphologically diverse species to determine their placement in the Lamiini. Through supermatrix and coalescent methods, the higher-level relationships of Monochamus show that conifer-feeders are a monophyletic group that includes the type species and has split into Nearctic and Palearctic clades. Molecular dating indicates a single dispersal of conifer-feeders to North America over the second Bering Land Bridge circa 5.3 Ma. All other Monochamus sampled fall in different parts of the Lamiini tree. Small-bodied angiosperm-feeding Monochamus group with the monotypic genus Microgoes Casey. The African Monochamus subgenera sampled are distantly related to the conifer-feeding clade. The multispecies coalescent delimitation methods BPP and STACEY delimit 17 conifer-feeding Monochamus species for a total of 18 species, and supports the retention of all current species. An interrogation with nuclear gene allele phasing reveals that unphased data can be unreliable for accurate delimitations and divergence times. The delimited species are discussed with integrative evidence, highlighting real-world challenges in recognizing the completion of speciation trajectories.
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Affiliation(s)
- Patrick S Gorring
- Museum of Comparative Zoology, Department of Organismic and Evolutionary Biology, Harvard University, 26 Oxford St. Cambridge, MA, USA.
| | - Brian D Farrell
- Museum of Comparative Zoology, Department of Organismic and Evolutionary Biology, Harvard University, 26 Oxford St. Cambridge, MA, USA
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12
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Elías DJ, McMahan CD, Alda F, García-Alzate C, Hart PB, Chakrabarty P. Phylogenomics of trans-Andean tetras of the genus Hyphessobrycon Durbin 1908 (Stethaprioninae: Characidae) and colonization patterns of Middle America. PLoS One 2023; 18:e0279924. [PMID: 36662755 PMCID: PMC9858358 DOI: 10.1371/journal.pone.0279924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 12/16/2022] [Indexed: 01/21/2023] Open
Abstract
Hyphessobrycon is one of the most species rich and widely distributed genera in the family Characidae, with more than 160 species ranging from Veracruz, Mexico to Mar Chiquita Lagoon in Buenos Aires, Argentina. The majority of Hyphessobrycon diversity shows a cis-Andean distribution; only nine species are trans-Andean including H. compressus (Meek 1908). It is well established that Hyphessobrycon is not monophyletic but it has been suggested that natural groups can be identified within the larger Hyphessobrycon species group. In this study, we tested the monophyly of trans-Andean species of Hyphessobrycon and investigated the placement of H. compressus. We inferred the first phylogenomic hypothesis of trans-Andean Hyphessobrycon that includes nearly complete taxonomic sampling (eight of nine valid species) using ultraconserved elements (UCEs). We analyzed 75% (1682 UCEs), 90% (1258 UCEs), and 95% (838 UCEs) complete data matrices, and inferred phylogenomic hypotheses under concatenation and coalescent approaches. In all cases, we recovered the monophyly of trans-Andean Hyphessobrycon inclusive of H. compressus, strong support for three species groups, and evidence of cryptic diversity within the widespread H. compressus and H. condotensis. We used our phylogenomic hypothesis to investigate the biogeographic history of Hyphessobrycon in Middle America. Our ancestral range estimation analysis suggests a single event of cis- to trans-Andean colonization followed by stepwise colonization from the Pacific slope of northwestern South America (Chocó block) to northern Middle America (Maya block). Our work supports the recognition of the trans-Andean species as Hyphessobrycon sensu stricto and provides an evolutionary template to examine morphological characters that will allow us to better understand the diversity of Hyphessobrycon in Middle America.
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Affiliation(s)
- Diego J. Elías
- Museum of Natural Science, Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana, United States of America
- Field Museum of Natural History, Chicago, Illinois, United States of America
| | - Caleb D. McMahan
- Field Museum of Natural History, Chicago, Illinois, United States of America
| | - Fernando Alda
- Department of Biology, Geology and Environmental Science, University of Tennessee at Chattanooga, Chattanooga, Tennessee, United States of America
- SimCenter: Center for Excellence in Applied Computational Science and Engineering, University of Tennessee at Chattanooga, Chattanooga, Tennessee, United States of America
| | - Carlos García-Alzate
- Grupo de Investigación Estudios en Sistemática y Conservación, Universidad del Atlántico-Corporación Universitaria Autónoma del Cauca, Popayán, Colombia
| | - Pamela B. Hart
- Museum of Natural Science, Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana, United States of America
- Department of Biological Sciences, The University of Alabama, Tuscaloosa, AL, United States of America
| | - Prosanta Chakrabarty
- Museum of Natural Science, Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana, United States of America
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13
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Macate IE, Bessa-Silva A, Caires RA, Vallinoto M, Giarrizzo T, Angulo A, Ruiz-Campos G, Sampaio I, Guimarães-Costa A. Phylogenetic relationships of sleeper gobies (Eleotridae: Gobiiformes: Gobioidei), with comments on the position of the miniature genus Microphilypnus. Sci Rep 2022; 12:22162. [PMID: 36550282 PMCID: PMC9780216 DOI: 10.1038/s41598-022-26555-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022] Open
Abstract
Microphilypnus and Leptophilypnion are miniaturized genera within the family Eleotridae. The evolutionary relationships among these taxa are still poorly understood, and molecular analyses are restricted to mitochondrial genes, which have not been conclusive. We compiled both mitochondrial and nuclear genes to study the phylogenetic position of Microphilypnus and the evolutionary history and relationships of eleotrids. We propose that Microphilypnus and Leptophilypnus (a non-miniature genus) are not sister groups as suggested by previous studies, but rather separate lineages that arose in the early Eocene, with Leptophilypnus recovered as a sister group to the other analyzed eleotrids. In fact, Microphilypnus is currently associated with the Neotropical clade Guavina/Dormitator/Gobiomorus. We also identified a well-supported clade that indicated Gobiomorus and Hemieleotris as paraphyletic groups, besides a close relationship among Calumia godeffroyi, Bunaka gyrinoides, Eleotris and Erotelis species. This is the first comprehensive report about the evolutionary relationships in members of the family Eleotridae, including multiloci and multispecies approaches. Therefore, we provided new insights about the phylogenetic position of some taxa absent in previous studies, such as the miniature genus Microphilypnus and a recently described species of Eleotris from South America.
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Affiliation(s)
- Isadola Eusébio Macate
- grid.271300.70000 0001 2171 5249Laboratório de Evolução, Instituto de Estudos Costeiros, Universidade Federal do Pará, campus de Bragança, Alameda Leandro Ribeiro, 68600-000 Bragança, Pará Brazil
| | - Adam Bessa-Silva
- grid.271300.70000 0001 2171 5249Laboratório de Evolução, Instituto de Estudos Costeiros, Universidade Federal do Pará, campus de Bragança, Alameda Leandro Ribeiro, 68600-000 Bragança, Pará Brazil ,grid.5808.50000 0001 1503 7226CIBIO-InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Campus Agrário de Vairão, 4485-661 Vairão, Portugal
| | - Rodrigo Antunes Caires
- grid.11899.380000 0004 1937 0722Laboratório de Diversidade, Ecologia e Distribuição de Peixes, Instituto Oceanografico da Universidade de São Paulo, Praça do Oceanografico, Butantã, 05508-120, São Paulo, Brazil
| | - Marcelo Vallinoto
- grid.271300.70000 0001 2171 5249Laboratório de Evolução, Instituto de Estudos Costeiros, Universidade Federal do Pará, campus de Bragança, Alameda Leandro Ribeiro, 68600-000 Bragança, Pará Brazil ,grid.5808.50000 0001 1503 7226CIBIO-InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Campus Agrário de Vairão, 4485-661 Vairão, Portugal
| | - Tommaso Giarrizzo
- grid.271300.70000 0001 2171 5249Laboratório de Biologia Pesqueira - Manejo de Recursos Aquáticos, Universidade Federal do Pará, Campus do Guamá, Av. Perimetral. 2651, Belém, Pará Brazil
| | - Arturo Angulo
- grid.412889.e0000 0004 1937 0706Museo de Zoología, Escuela de Biología, Universidad de Costa Rica, San Pedro de Montes de Oca, San José, Costa Rica ,grid.412889.e0000 0004 1937 0706Centro de Investigación en Biodiversidad y Ecología Tropical, Museo de Zoología, Universidad de Costa Rica, San Pedro de Montes de Oca, San José, 11501–2060 Costa Rica
| | - Gorgonio Ruiz-Campos
- grid.412852.80000 0001 2192 0509Facultad de Ciencias, Universidad Autónoma de Baja California, 22860 Ensenada, Baja California Mexico
| | - Iracilda Sampaio
- grid.271300.70000 0001 2171 5249Laboratório de Evolução, Instituto de Estudos Costeiros, Universidade Federal do Pará, campus de Bragança, Alameda Leandro Ribeiro, 68600-000 Bragança, Pará Brazil
| | - Aurycéia Guimarães-Costa
- grid.271300.70000 0001 2171 5249Laboratório de Evolução, Instituto de Estudos Costeiros, Universidade Federal do Pará, campus de Bragança, Alameda Leandro Ribeiro, 68600-000 Bragança, Pará Brazil
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14
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Dietz L, Eberle J, Mayer C, Kukowka S, Bohacz C, Baur H, Espeland M, Huber BA, Hutter C, Mengual X, Peters RS, Vences M, Wesener T, Willmott K, Misof B, Niehuis O, Ahrens D. Standardized nuclear markers improve and homogenize species delimitation in Metazoa. Methods Ecol Evol 2022. [DOI: 10.1111/2041-210x.14041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Lars Dietz
- Museum A. Koenig, Leibniz Institute for the Analysis of Biodiversity Change (LIB) Bonn Germany
| | - Jonas Eberle
- Museum A. Koenig, Leibniz Institute for the Analysis of Biodiversity Change (LIB) Bonn Germany
- Paris‐Lodron‐University Salzburg Austria
| | - Christoph Mayer
- Museum A. Koenig, Leibniz Institute for the Analysis of Biodiversity Change (LIB) Bonn Germany
| | - Sandra Kukowka
- Museum A. Koenig, Leibniz Institute for the Analysis of Biodiversity Change (LIB) Bonn Germany
| | - Claudia Bohacz
- Museum A. Koenig, Leibniz Institute for the Analysis of Biodiversity Change (LIB) Bonn Germany
| | - Hannes Baur
- Naturhistorisches Museum Bern/Institute of Ecology and Evolution University of Bern Bern Switzerland
| | - Marianne Espeland
- Museum A. Koenig, Leibniz Institute for the Analysis of Biodiversity Change (LIB) Bonn Germany
| | - Bernhard A. Huber
- Museum A. Koenig, Leibniz Institute for the Analysis of Biodiversity Change (LIB) Bonn Germany
| | - Carl Hutter
- Museum of Natural Sciences and Department of Biological Sciences Louisiana State University Baton Rouge Louisiana USA
| | - Ximo Mengual
- Museum A. Koenig, Leibniz Institute for the Analysis of Biodiversity Change (LIB) Bonn Germany
| | - Ralph S. Peters
- Museum A. Koenig, Leibniz Institute for the Analysis of Biodiversity Change (LIB) Bonn Germany
| | - Miguel Vences
- Technische Universität Braunschweig Braunschweig Germany
| | - Thomas Wesener
- Museum A. Koenig, Leibniz Institute for the Analysis of Biodiversity Change (LIB) Bonn Germany
| | - Keith Willmott
- Florida Museum of Natural History University of Florida Gainesville Florida USA
| | - Bernhard Misof
- Museum A. Koenig, Leibniz Institute for the Analysis of Biodiversity Change (LIB) Bonn Germany
- Rheinische Friedrich‐Wilhelms‐Universität Bonn Bonn Germany
| | - Oliver Niehuis
- Abt. Evolutionsbiologie und Ökologie, Institut für Biologie I, Albert‐Ludwigs‐Universität Freiburg Freiburg im Breisgau Germany
| | - Dirk Ahrens
- Museum A. Koenig, Leibniz Institute for the Analysis of Biodiversity Change (LIB) Bonn Germany
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15
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Sklenář F, Glässnerová K, Jurjević Ž, Houbraken J, Samson R, Visagie C, Yilmaz N, Gené J, Cano J, Chen A, Nováková A, Yaguchi T, Kolařík M, Hubka V. Taxonomy of Aspergillus series Versicolores: species reduction and lessons learned about intraspecific variability. Stud Mycol 2022; 102:53-93. [PMID: 36760461 PMCID: PMC9903908 DOI: 10.3114/sim.2022.102.02] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 10/26/2022] [Indexed: 11/18/2022] Open
Abstract
Aspergillus series Versicolores members occur in a wide range of environments and substrates such as indoor environments, food, clinical materials, soil, caves, marine or hypersaline ecosystems. The taxonomy of the series has undergone numerous re-arrangements including a drastic reduction in the number of species and subsequent recovery to 17 species in the last decade. The identification to species level is however problematic or impossible in some isolates even using DNA sequencing or MALDI-TOF mass spectrometry indicating a problem in the definition of species boundaries. To revise the species limits, we assembled a large dataset of 518 strains. From these, a total of 213 strains were selected for the final analysis according to their calmodulin (CaM) genotype, substrate and geography. This set was used for phylogenetic analysis based on five loci (benA, CaM, RPB2, Mcm7, Tsr1). Apart from the classical phylogenetic methods, we used multispecies coalescence (MSC) model-based methods, including one multilocus method (STACEY) and five single-locus methods (GMYC, bGMYC, PTP, bPTP, ABGD). Almost all species delimitation methods suggested a broad species concept with only four species consistently supported. We also demonstrated that the currently applied concept of species is not sustainable as there are incongruences between single-gene phylogenies resulting in different species identifications when using different gene regions. Morphological and physiological data showed overall lack of good, taxonomically informative characters, which could be used for identification of such a large number of existing species. The characters expressed either low variability across species or significant intraspecific variability exceeding interspecific variability. Based on the above-mentioned results, we reduce series Versicolores to four species, namely A. versicolor, A. creber, A. sydowii and A. subversicolor, and the remaining species are synonymized with either A. versicolor or A. creber. The revised descriptions of the four accepted species are provided. They can all be identified by any of the five genes used in this study. Despite the large reduction in species number, identification based on phenotypic characters remains challenging, because the variation in phenotypic characters is high and overlapping among species, especially between A. versicolor and A. creber. Similar to the 17 narrowly defined species, the four broadly defined species do not have a specific ecology and are distributed worldwide. We expect that the application of comparable methodology with extensive sampling could lead to a similar reduction in the number of cryptic species in other extensively studied Aspergillus species complexes and other fungal genera. Citation: Sklenář F, Glässnerová K, Jurjević Ž, Houbraken J, Samson RA, Visagie CM, Yilmaz N, Gené J, Cano J, Chen AJ, Nováková A, Yaguchi T, Kolařík M, Hubka V (2022). Taxonomy of Aspergillus series Versicolores: species reduction and lessons learned about intraspecific variability. Studies in Mycology 102 : 53-93. doi: 10.3114/sim.2022.102.02.
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Affiliation(s)
- F. Sklenář
- Department of Botany, Faculty of Science, Charles University, Prague, Czech Republic;, Laboratory of Fungal Genetics and Metabolism, Institute of Microbiology, Czech Academy of Sciences, Prague, Czech Republic;,*Corresponding author: V. Hubka, ; F. Sklenář,
| | - K. Glässnerová
- Department of Botany, Faculty of Science, Charles University, Prague, Czech Republic
| | - Ž. Jurjević
- EMSL Analytical, Cinnaminson, New Jersey, USA
| | - J. Houbraken
- Westerdijk Fungal Biodiversity Institute, Utrecht, The Netherlands
| | - R.A. Samson
- Westerdijk Fungal Biodiversity Institute, Utrecht, The Netherlands
| | - C.M. Visagie
- Department of Biochemistry, Genetics, and Microbiology, Forestry and Agricultural Biotechnology Institute, University of Pretoria, Pretoria, South Africa
| | - N. Yilmaz
- Department of Biochemistry, Genetics, and Microbiology, Forestry and Agricultural Biotechnology Institute, University of Pretoria, Pretoria, South Africa
| | - J. Gené
- Unitat de Micologia, Facultat de Medicina i Ciències de la Salut, IISPV, Universitat Rovira i Virgili, Reus, Spain
| | - J. Cano
- Unitat de Micologia, Facultat de Medicina i Ciències de la Salut, IISPV, Universitat Rovira i Virgili, Reus, Spain
| | - A.J. Chen
- Microbiome Research Center, Moon (Guangzhou) Biotech Ltd., Guangzhou, China
| | - A. Nováková
- Laboratory of Fungal Genetics and Metabolism, Institute of Microbiology, Czech Academy of Sciences, Prague, Czech Republic
| | - T. Yaguchi
- Medical Mycology Research Center, Chiba University, Chuo-ku, Chiba, Japan
| | - M. Kolařík
- Laboratory of Fungal Genetics and Metabolism, Institute of Microbiology, Czech Academy of Sciences, Prague, Czech Republic
| | - V. Hubka
- Department of Botany, Faculty of Science, Charles University, Prague, Czech Republic;, Laboratory of Fungal Genetics and Metabolism, Institute of Microbiology, Czech Academy of Sciences, Prague, Czech Republic;, Medical Mycology Research Center, Chiba University, Chuo-ku, Chiba, Japan,*Corresponding author: V. Hubka, ; F. Sklenář,
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16
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Glässnerová K, Sklenář F, Jurjević Ž, Houbraken J, Yaguchi T, Visagie C, Gené J, Siqueira J, Kubátová A, Kolařík M, Hubka V. A monograph of Aspergillus section Candidi. Stud Mycol 2022; 102:1-51. [PMID: 36760463 PMCID: PMC9903906 DOI: 10.3114/sim.2022.102.01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 08/03/2022] [Indexed: 01/09/2023] Open
Abstract
Aspergillus section Candidi encompasses white- or yellow-sporulating species mostly isolated from indoor and cave environments, food, feed, clinical material, soil and dung. Their identification is non-trivial due to largely uniform morphology. This study aims to re-evaluate the species boundaries in the section Candidi and present an overview of all existing species along with information on their ecology. For the analyses, we assembled a set of 113 strains with diverse origin. For the molecular analyses, we used DNA sequences of three house-keeping genes (benA, CaM and RPB2) and employed species delimitation methods based on a multispecies coalescent model. Classical phylogenetic methods and genealogical concordance phylogenetic species recognition (GCPSR) approaches were used for comparison. Phenotypic studies involved comparisons of macromorphology on four cultivation media, seven micromorphological characters and growth at temperatures ranging from 10 to 45 °C. Based on the integrative approach comprising four criteria (phylogenetic and phenotypic), all currently accepted species gained support, while two new species are proposed (A. magnus and A. tenebricus). In addition, we proposed the new name A. neotritici to replace an invalidly described A. tritici. The revised section Candidi now encompasses nine species, some of which manifest a high level of intraspecific genetic and/or phenotypic variability (e.g., A. subalbidus and A. campestris) while others are more uniform (e.g., A. candidus or A. pragensis). The growth rates on different media and at different temperatures, colony colours, production of soluble pigments, stipe dimensions and vesicle diameters contributed the most to the phenotypic species differentiation. Taxonomic novelties: New species: Aspergillus magnus Glässnerová & Hubka; Aspergillus neotritici Glässnerová & Hubka; Aspergillus tenebricus Houbraken, Glässnerová & Hubka. Citation: Glässnerová K, Sklenář F, Jurjević Ž, Houbraken J, Yaguchi T, Visagie CM, Gené J, Siqueira JPZ, Kubátová A, Kolařík M, Hubka V (2022). A monograph of Aspergillus section Candidi. Studies in Mycology 102: 1-51. doi: 10.3114/sim.2022.102.01.
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Affiliation(s)
- K. Glässnerová
- Department of Botany, Faculty of Science, Charles University, Prague, Czech Republic
| | - F. Sklenář
- Department of Botany, Faculty of Science, Charles University, Prague, Czech Republic
- Laboratory of Fungal Genetics and Metabolism, Institute of Microbiology, Czech Academy of Sciences, Prague, Czech Republic
| | - Ž. Jurjević
- EMSL Analytical, Cinnaminson, New Jersey, USA
| | - J. Houbraken
- Westerdijk Fungal Biodiversity Institute, Utrecht, The Netherlands
| | - T. Yaguchi
- Medical Mycology Research Center, Chiba University, Chuo-ku, Chiba, Japan
| | - C.M. Visagie
- Department of Biochemistry, Genetics and Microbiology, Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria, South Africa
| | - J. Gené
- Unitat de Micologia, Facultat de Medicina i Ciències de la Salut, IISPV, Universitat Rovira i Virgili, Reus, Spain
| | - J.P.Z. Siqueira
- Unitat de Micologia, Facultat de Medicina i Ciències de la Salut, IISPV, Universitat Rovira i Virgili, Reus, Spain
- Laboratório de Microbiologia, Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto, Brazil
| | - A. Kubátová
- Department of Botany, Faculty of Science, Charles University, Prague, Czech Republic
| | - M. Kolařík
- Department of Botany, Faculty of Science, Charles University, Prague, Czech Republic
- Laboratory of Fungal Genetics and Metabolism, Institute of Microbiology, Czech Academy of Sciences, Prague, Czech Republic
| | - V. Hubka
- Department of Botany, Faculty of Science, Charles University, Prague, Czech Republic
- Laboratory of Fungal Genetics and Metabolism, Institute of Microbiology, Czech Academy of Sciences, Prague, Czech Republic
- Medical Mycology Research Center, Chiba University, Chuo-ku, Chiba, Japan
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17
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Bian C, Kusuya Y, Sklenář F, D’hooge E, Yaguchi T, Ban S, Visagie C, Houbraken J, Takahashi H, Hubka V. Reducing the number of accepted species in Aspergillus series Nigri. Stud Mycol 2022; 102:95-132. [PMID: 36760462 PMCID: PMC9903907 DOI: 10.3114/sim.2022.102.03] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 12/06/2022] [Indexed: 12/24/2022] Open
Abstract
The Aspergillus series Nigri contains biotechnologically and medically important species. They can produce hazardous mycotoxins, which is relevant due to the frequent occurrence of these species on foodstuffs and in the indoor environment. The taxonomy of the series has undergone numerous rearrangements, and currently, there are 14 species accepted in the series, most of which are considered cryptic. Species-level identifications are, however, problematic or impossible for many isolates even when using DNA sequencing or MALDI-TOF mass spectrometry, indicating a possible problem in the definition of species limits or the presence of undescribed species diversity. To re-examine the species boundaries, we collected DNA sequences from three phylogenetic markers (benA, CaM and RPB2) for 276 strains from series Nigri and generated 18 new whole-genome sequences. With the three-gene dataset, we employed phylogenetic methods based on the multispecies coalescence model, including four single-locus methods (GMYC, bGMYC, PTP and bPTP) and one multilocus method (STACEY). From a total of 15 methods and their various settings, 11 supported the recognition of only three species corresponding to the three main phylogenetic lineages: A. niger, A. tubingensis and A. brasiliensis. Similarly, recognition of these three species was supported by the GCPSR approach (Genealogical Concordance Phylogenetic Species Recognition) and analysis in DELINEATE software. We also showed that the phylogeny based on benA, CaM and RPB2 is suboptimal and displays significant differences from a phylogeny constructed using 5 752 single-copy orthologous proteins; therefore, the results of the delimitation methods may be subject to a higher than usual level of uncertainty. To overcome this, we randomly selected 200 genes from these genomes and performed ten independent STACEY analyses, each with 20 genes. All analyses supported the recognition of only one species in the A. niger and A. brasiliensis lineages, while one to four species were inconsistently delimited in the A. tubingensis lineage. After considering all of these results and their practical implications, we propose that the revised series Nigri includes six species: A. brasiliensis, A. eucalypticola, A. luchuensis (syn. A. piperis), A. niger (syn. A. vinaceus and A. welwitschiae), A. tubingensis (syn. A. chiangmaiensis, A. costaricensis, A. neoniger and A. pseudopiperis) and A. vadensis. We also showed that the intraspecific genetic variability in the redefined A. niger and A. tubingensis does not deviate from that commonly found in other aspergilli. We supplemented the study with a list of accepted species, synonyms and unresolved names, some of which may threaten the stability of the current taxonomy. Citation: Bian C, Kusuya Y, Sklenář F, D'hooge E, Yaguchi T, Ban S, Visagie CM, Houbraken J, Takahashi H, Hubka V (2022). Reducing the number of accepted species in Aspergillus series Nigri. Studies in Mycology 102: 95-132. doi: 10.3114/sim.2022.102.03.
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Affiliation(s)
- C. Bian
- Graduate School of Medical and Pharmaceutical Sciences, Chiba University, Chiba, Japan
| | - Y. Kusuya
- Medical Mycology Research Center, Chiba University, Chiba, Japan;, Biological Resource Center, National Institute of Technology and Evaluation, Kisarazu, Japan
| | - F. Sklenář
- Department of Botany, Faculty of Science, Charles University, Prague, Czech Republic;, Laboratory of Fungal Genetics and Metabolism, Institute of Microbiology, Czech Academy of Sciences, Prague, Czech Republic
| | - E. D’hooge
- BCCM/IHEM collection, Mycology and Aerobiology, Sciensano, Bruxelles, Belgium
| | - T. Yaguchi
- Medical Mycology Research Center, Chiba University, Chiba, Japan
| | - S. Ban
- Medical Mycology Research Center, Chiba University, Chiba, Japan
| | - C.M. Visagie
- Department of Biochemistry, Genetics, and Microbiology, Forestry and Agricultural Biotechnology Institute, University of Pretoria, Pretoria, South Africa
| | - J. Houbraken
- Westerdijk Fungal Biodiversity Institute, Utrecht, the Netherlands
| | - H. Takahashi
- Medical Mycology Research Center, Chiba University, Chiba, Japan;, Molecular Chirality Research Center, Chiba University, Chiba, Japan;, Plant Molecular Science Center, Chiba University, Chiba, Japan,*Corresponding authors: H. Takahashi, ; V. Hubka,
| | - V. Hubka
- Medical Mycology Research Center, Chiba University, Chiba, Japan;, Department of Botany, Faculty of Science, Charles University, Prague, Czech Republic;, Laboratory of Fungal Genetics and Metabolism, Institute of Microbiology, Czech Academy of Sciences, Prague, Czech Republic;,*Corresponding authors: H. Takahashi, ; V. Hubka,
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18
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Seabolt MH, Roellig DM, Konstantinidis KT. Genomic comparisons confirm Giardia duodenalis sub-assemblage AII as a unique species. Front Cell Infect Microbiol 2022; 12:1010244. [PMID: 36325462 PMCID: PMC9618722 DOI: 10.3389/fcimb.2022.1010244] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 09/28/2022] [Indexed: 11/15/2022] Open
Abstract
Giardia duodenalis is a parasitic flagellated protozoan which infects a wide range of mammalian hosts, including humans, and is subdivided into at least eight genetic assemblages commonly thought to represent cryptic species. Molecular studies have shown that G. duodenalis assemblage A, which parasitizes humans and animals, contains several phylogenetically distinct groupings known as sub-assemblages. Molecular studies employing poor phylogenetic-resolution markers routinely recover these sub-assemblages, implying that they represent evolutionarily distinct clades and possibly cryptic species, a hypothesis which is supported by epidemiologic trends. Here, we further tested this hypothesis by using available data from 41 whole genomes to characterize sub-assemblages and coalescent techniques for statistical estimation of species boundaries coupled to functional gene content analysis, thereby assessing the stability and distinctiveness of clades. Our analysis revealed two new sub-assemblage clades as well as novel signatures of gene content geared toward differential host adaptation and population structuring via vertical inheritance rather than recombination or panmixia. We formally propose sub-assemblage AII as a new species, Giardia hominis, while preserving the name Giardia duodenalis for sub-assemblage AI. Additionally, our bioinformatic methods broadly address the challenges of identifying cryptic microbial species to advance our understanding of emerging disease epidemiology, which should be broadly applicable to other lower eukaryotic taxa of interest. Giardia hominis n. sp. Zoobank LSID: urn:lsid: zoobank.org:pub:4298F3E1-E3EF-4977-B9DD-5CC59378C80E.
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Affiliation(s)
- Matthew H. Seabolt
- Division of Foodborne, Waterborne, and Environmental Diseases, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA, United States
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, United States
- Public Health Office, Leidos Inc., Reston, VA, United States
- *Correspondence: Matthew H. Seabolt, ; Konstantinos T. Konstantinidis,
| | - Dawn M. Roellig
- Division of Foodborne, Waterborne, and Environmental Diseases, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA, United States
| | - Konstantinos T. Konstantinidis
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, United States
- School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA, United States
- *Correspondence: Matthew H. Seabolt, ; Konstantinos T. Konstantinidis,
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19
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Chou MH, Chu IH, Lau D, Huang JP. Integrative species delimitation reveals fine-scale allopatric speciation in a good-flying insect: a case study on. INVERTEBR SYST 2022. [DOI: 10.1071/is22011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Alpha taxonomy is fundamental for many biological fields. Delineation of the species boundary, however, can be challenging in a species complex, where different species share a similar morphology and diagnostic characters may not be available. In this context, integrative approaches that incorporate molecular and morphological data sets, and account for speciation history can be helpful to alpha taxonomy. Different approaches to species delimitation based on different assumptions are complementary and by integrating the results from multiple approaches we can generate a more reliable and objective taxonomic decision. In this study, we applied three molecular approaches to species delimitation and inferred the demographic history based on an isolation with migration model to test a morphologically based taxonomic hypothesis for the Cylindera pseudocylindriformis complex. We discuss the association between genetic divergence and microhabitat specialisation, and further corroborate that C. subtilis sp. nov. is a valid new species by integrating the results from model-based species delimitation and the genealogical divergence index. We argue that genetic endemism can occur at a small geographic scale, even in a winged insect like tiger beetles. Our results also indicated that there may still be undocumented species diversity of Taiwanese Cylindera remaining to be discovered. ZooBank LSID: urn:lsid:zoobank.org:pub:9DEC1432-365C-4872-8D06-73B95F30624F
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20
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Karpiński L, Gorring P, Hilszczański J, Szczepański WT, Plewa R, Łoś K, Cognato AI. Integrative taxonomy tests possible hybridisation between Central Asian cerambycids (Coleoptera). ZOOL SCR 2022. [DOI: 10.1111/zsc.12570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lech Karpiński
- Museum and Institute of Zoology Polish Academy of Sciences Warsaw Poland
| | - Patrick Gorring
- Department of Entomology Michigan State University East Lansing USA
- Department of Organismic and Evolutionary Biology Harvard University Cambridge USA
| | - Jacek Hilszczański
- Department of Forest Protection Forest Research Institute Sękocin Stary Poland
| | | | - Radosław Plewa
- Department of Forest Protection Forest Research Institute Sękocin Stary Poland
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21
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Crowl AA, Fritsch PW, Tiley GP, Lynch NP, Ranney TG, Ashrafi H, Manos PS. A first complete phylogenomic hypothesis for diploid blueberries (Vaccinium section Cyanococcus). AMERICAN JOURNAL OF BOTANY 2022; 109:1596-1606. [PMID: 36109839 DOI: 10.1002/ajb2.16065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 06/08/2022] [Accepted: 08/23/2022] [Indexed: 06/15/2023]
Abstract
PREMISE The true blueberries (Vaccinium sect. Cyanococcus; Ericaceae), endemic to North America, have been intensively studied for over a century. However, with species estimates ranging from nine to 24 and much confusion regarding species boundaries, this ecologically and economically valuable group remains inadequately understood at a basic evolutionary and taxonomic level. As a first step toward understanding the evolutionary history and taxonomy of this species complex, we present the first phylogenomic hypothesis of the known diploid blueberries. METHODS We used flow cytometry to verify the ploidy of putative diploid taxa and a target-enrichment approach to obtain a genomic data set for phylogenetic analyses. RESULTS Despite evidence of gene flow, we found that a primary phylogenetic signal is present. Monophyly for all morphospecies was recovered, with two notable exceptions: one sample of V. boreale was consistently nested in the V. myrtilloides clade and V. caesariense was nested in the V. fuscatum clade. One diploid taxon, Vaccinium pallidum, is implicated as having a homoploid hybrid origin. CONCLUSIONS This foundational study represents the first attempt to elucidate evolutionary relationships of the true blueberries of North America with a phylogenomic approach and sets the stage for multiple avenues of future study such as a taxonomic revision of the group, the verification of a homoploid hybrid taxon, and the study of polyploid lineages within the context of a diploid phylogeny.
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Affiliation(s)
- Andrew A Crowl
- Department of Horticultural Science, North Carolina State University, Raleigh, North Carolina, 27607, USA
- Department of Biology, Duke University, Durham, North Carolina, 27708, USA
| | - Peter W Fritsch
- Botanical Research Institute of Texas, Fort Worth, Texas, 76107, USA
| | - George P Tiley
- Department of Biology, Duke University, Durham, North Carolina, 27708, USA
- Royal Botanic Gardens Kew, Richmond, TW9 3AE, UK
| | - Nathan P Lynch
- Department of Horticultural Science, North Carolina State University, Raleigh, North Carolina, 27607, USA
- Department of Horticultural Science, North Carolina State University, Mountain Horticultural Crops Research and Extension Center, Mills River, North Carolina, 28759, USA
| | - Thomas G Ranney
- Department of Horticultural Science, North Carolina State University, Raleigh, North Carolina, 27607, USA
- Department of Horticultural Science, North Carolina State University, Mountain Horticultural Crops Research and Extension Center, Mills River, North Carolina, 28759, USA
| | - Hamid Ashrafi
- Department of Horticultural Science, North Carolina State University, Raleigh, North Carolina, 27607, USA
| | - Paul S Manos
- Department of Biology, Duke University, Durham, North Carolina, 27708, USA
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22
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González M, Kacevas N, Nori J, Piacentini LN, Bidegaray-Batista L. Not the same: phylogenetic relationships and ecological niche comparisons between two different forms of Aglaoctenus lagotis from Argentina and Uruguay. ORG DIVERS EVOL 2022. [DOI: 10.1007/s13127-022-00586-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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23
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Karbstein K, Tomasello S, Hodač L, Wagner N, Marinček P, Barke BH, Paetzold C, Hörandl E. Untying Gordian knots: unraveling reticulate polyploid plant evolution by genomic data using the large Ranunculus auricomus species complex. THE NEW PHYTOLOGIST 2022; 235:2081-2098. [PMID: 35633497 DOI: 10.1111/nph.18284] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 05/14/2022] [Indexed: 06/15/2023]
Abstract
Speciation via hybridization and polyploidization is a major evolutionary force in plant evolution but is still poorly understood for neopolyploid groups. Challenges are attributed to high heterozygosity, low genetic divergence, and missing information on progenitors, ploidy, and reproduction. We study the large Eurasian Ranunculus auricomus species complex and use a comprehensive workflow integrating reduced-representation sequencing (RRS) genomic data to unravel reticulate evolution, genome diversity and composition of polyploids. We rely on 97 312 restriction site-associated DNA sequencing (RAD-Seq) loci, 576 targeted nuclear genes (48 phased), and 71 plastid regions derived from 78 polyploid apomictic taxa and four diploid and one tetraploid putative sexual progenitor species. We applied (phylo)genomic structure, network, and single nucleotide polymorphism (SNP)-origin analyses. Results consistently showed only 3-5 supported and geographically structured polyploid genetic groups, each containing extant sexual and one unknown progenitor species. Combined analyses demonstrated predominantly allopolyploid origins, each involving 2-3 different diploid sexual progenitor species. Young allotetraploids were characterized by subgenome dominance and nonhybrid SNPs, suggesting substantial post-origin but little lineage-specific evolution. The biodiversity of neopolyploid complexes can result from multiple hybrid origins involving different progenitors and substantial post-origin evolution (e.g. homoeologous exchanges, hybrid segregation, gene flow). Reduced-representation sequencing genomic data including multi-approach information is efficient to delimit shallow reticulate relationships.
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Affiliation(s)
- Kevin Karbstein
- Department of Systematics, Biodiversity and Evolution of Plants (with Herbarium), Albrecht-von-Haller Institute for Plant Sciences, University of Göttingen, 37073, Göttingen, Germany
- Georg-August University School of Science (GAUSS), University of Göttingen, 37073, Göttingen, Germany
| | - Salvatore Tomasello
- Department of Systematics, Biodiversity and Evolution of Plants (with Herbarium), Albrecht-von-Haller Institute for Plant Sciences, University of Göttingen, 37073, Göttingen, Germany
| | - Ladislav Hodač
- Department of Systematics, Biodiversity and Evolution of Plants (with Herbarium), Albrecht-von-Haller Institute for Plant Sciences, University of Göttingen, 37073, Göttingen, Germany
- Department of Biogeochemical Integration, Max Planck Institute for Biogeochemistry, 07745, Jena, Germany
| | - Natascha Wagner
- Department of Systematics, Biodiversity and Evolution of Plants (with Herbarium), Albrecht-von-Haller Institute for Plant Sciences, University of Göttingen, 37073, Göttingen, Germany
| | - Pia Marinček
- Department of Systematics, Biodiversity and Evolution of Plants (with Herbarium), Albrecht-von-Haller Institute for Plant Sciences, University of Göttingen, 37073, Göttingen, Germany
| | - Birthe Hilkka Barke
- Department of Systematics, Biodiversity and Evolution of Plants (with Herbarium), Albrecht-von-Haller Institute for Plant Sciences, University of Göttingen, 37073, Göttingen, Germany
| | - Claudia Paetzold
- Department of Systematics, Biodiversity and Evolution of Plants (with Herbarium), Albrecht-von-Haller Institute for Plant Sciences, University of Göttingen, 37073, Göttingen, Germany
- Department of Botany and Molecular Evolution, Senckenberg Research Institute, 60325, Frankfurt (Main), Germany
| | - Elvira Hörandl
- Department of Systematics, Biodiversity and Evolution of Plants (with Herbarium), Albrecht-von-Haller Institute for Plant Sciences, University of Göttingen, 37073, Göttingen, Germany
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24
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Réblová M, Hernández-Restrepo M, Sklenář F, Nekvindová J, Réblová K, Kolařík M. Consolidation of Chloridium: new classification into eight sections with 37 species and reinstatement of the genera Gongromeriza and Psilobotrys. Stud Mycol 2022; 103:87-212. [PMID: 37342155 PMCID: PMC10277272 DOI: 10.3114/sim.2022.103.04] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 12/02/2022] [Indexed: 06/13/2024] Open
Abstract
Chloridium is a little-studied group of soil- and wood-inhabiting dematiaceous hyphomycetes that share a rare mode of phialidic conidiogenesis on multiple loci. The genus has historically been divided into three morphological sections, i.e. Chloridium, Gongromeriza, and Psilobotrys. Sexual morphs have been placed in the widely perceived genus Chaetosphaeria, but unlike their asexual counterparts, they show little or no morphological variation. Recent molecular studies have expanded the generic concept to include species defined by a new set of morphological characters, such as the collar-like hyphae, setae, discrete phialides, and penicillately branched conidiophores. The study is based on the consilience of molecular species delimitation methods, phylogenetic analyses, ancestral state reconstruction, morphological hypotheses, and global biogeographic analyses. The multilocus phylogeny demonstrated that the classic concept of Chloridium is polyphyletic, and the original sections are not congeneric. Therefore, we abolish the existing classification and propose to restore the generic status of Gongromeriza and Psilobotrys. We present a new generic concept and define Chloridium as a monophyletic, polythetic genus comprising 37 species distributed in eight sections. In addition, of the taxa earlier referred to Gongromeriza, two have been redisposed to the new genus Gongromerizella. Analysis of published metabarcoding data showed that Chloridium is a common soil fungus representing a significant (0.3 %) proportion of sequence reads in environmental samples deposited in the GlobalFungi database. The analysis also showed that they are typically associated with forest habitats, and their distribution is strongly influenced by climate, which is confirmed by our data on their ability to grow at different temperatures. We demonstrated that Chloridium forms species-specific ranges of distribution, which is rarely documented for microscopic soil fungi. Our study shows the feasibility of using the GlobalFungi database to study the biogeography and ecology of fungi. Taxonomic novelties: New genus: Gongromerizella Réblová; New sections: Chloridium section Cryptogonytrichum Réblová, Hern.-Restr., M. Kolařík & F. Sklenar, Chloridium section Gonytrichopsis Réblová, Hern.-Restr., M. Kolařík & F. Sklenar, Chloridium section Metachloridium Réblová, Hern.-Restr., M. Kolařík & F. Sklenar, Chloridium section Volubilia Réblová, Hern.-Restr., M. Kolařík & F. Sklenar; New species: Chloridium bellum Réblová & Hern.-Restr., Chloridium biforme Réblová & Hern.-Restr., Chloridium detriticola Réblová & Hern.-Restr., Chloridium gamsii Réblová & Hern.-Restr., Chloridium guttiferum Réblová & Hern.-Restr., Chloridium moratum Réblová & Hern.-Restr., Chloridium peruense Réblová & Hern.-Restr., Chloridium novae-zelandiae Réblová & Hern.-Restr., Chloridium elongatum Réblová & Hern.-Restr., Chloridium volubile Réblová & Hern.-Restr.; New varieties: Chloridium bellum var. luteum Réblová & Hern.-Restr., Chloridium detriticola var. effusum Réblová & Hern.-Restr., Chloridium chloridioides var. convolutum Réblová & Hern.-Restr.; New combinations: Chloridium section Gonytrichum (Nees & T. Nees) Réblová, Hern.-Restr., M. Kolařík & F. Sklenar, Chloridium section Mesobotrys (Sacc.) Réblová, Hern.-Restr., M. Kolařík & F. Sklenar, Chloridium section Pseudophialocephala (M.S. Calabon et al.) Réblová, Hern.-Restr., M. Kolařík & F. Sklenar, Chloridium simile (W. Gams & Hol.-Jech.) Réblová & Hern.-Restr., Chloridium chloridioides (W. Gams & Hol.-Jech.) Réblová & Hern.-Restr., Chloridium subglobosum (W. Gams & Hol.-Jech.) Réblová & Hern.-Restr., Chloridium fuscum (Corda) Réblová & Hern.-Restr., Chloridium ypsilosporum (Hol.-Jech.) Réblová & Hern.-Restr., Chloridium costaricense (G. Weber et al.) Réblová & Hern.-Restr., Chloridium cuneatum (N.G. Liu et al.) Réblová & Hern.-Restr., Fusichloridium cylindrosporum (W. Gams & Hol.-Jech.) Réblová, Gongromeriza myriocarpa (Fr.) Réblová, Gongromeriza pygmaea (P. Karst.) Réblová, Gongromerizella lignicola (F. Mangenot) Réblová, Gongromerizella pachytrachela (W. Gams & Hol.-Jech) Réblová, Gongromerizella pini (Crous & Akulov) Réblová; New name: Chloridium pellucidum Réblová & Hern.-Restr.; Epitypifications (basionyms): Chaetopsis fusca Corda, Gonytrichum caesium var. subglobosum W. Gams & Hol.-Jech.; Lectotypification (basionym): Gonytrichum caesium Nees & T. Nees. Citation: Réblová M, Hernández-Restrepo M, Sklenář F, Nekvindová J, Réblová K, Kolařík M (2022). Consolidation of Chloridium: new classification into eight sections with 37 species and reinstatement of the genera Gongromeriza and Psilobotrys. Studies in Mycology 103: 87-212. doi: 10.3114/sim.2022.103.04.
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Affiliation(s)
- M. Réblová
- The Czech Academy of Sciences, Institute of Botany, Department of Taxonomy, 252 43 Průhonice, Czech Republic
| | - M. Hernández-Restrepo
- The Czech Academy of Sciences, Institute of Botany, Department of Taxonomy, 252 43 Průhonice, Czech Republic
| | - F. Sklenář
- The Czech Academy of Sciences, Institute of Botany, Department of Taxonomy, 252 43 Průhonice, Czech Republic
- The Czech Academy of Sciences, Institute of Microbiology, Laboratory of Fungal Genetics and Metabolism, 142 20 Prague 4, Czech Republic
| | - J. Nekvindová
- Institute of Clinical Biochemistry and Diagnostics, University Hospital, 500 05 Hradec Králové, Czech Republic
| | - K. Réblová
- The Czech Academy of Sciences, Institute of Botany, Department of Taxonomy, 252 43 Průhonice, Czech Republic
- CEITEC - Central European Institute of Technology, Masaryk University, 625 00 Brno, Czech Republic
| | - M. Kolařík
- The Czech Academy of Sciences, Institute of Microbiology, Laboratory of Fungal Genetics and Metabolism, 142 20 Prague 4, Czech Republic
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The evolutionary history of the relict scorpion family Iuridae of the eastern Mediterranean. Mol Phylogenet Evol 2022; 177:107622. [PMID: 36058510 DOI: 10.1016/j.ympev.2022.107622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 08/10/2022] [Accepted: 08/29/2022] [Indexed: 11/23/2022]
Abstract
Iuridae is a family of scorpions that exhibits a highly complex biogeographic and taxonomic history. Iuridae taxa are mainly found in Turkey and Greece, whereas a single species is found in northern Iraq. Several taxonomic revisions have been conducted on this family that initially comprised two genera. The latest taxonomic review, based on morphological and anatomical features, raised the number of Iuridae genera to four, and the number of species to 14. Sequence data from three molecular markers (COX1, 16S rDNA, ITS1) originating from numerous Iuridae taxa were analyzed within a phylogenetic framework. Divergence time-estimate analyses, species delimitation approaches and estimation of ancestral areas were implemented in order to: 1) reconstruct the phylogenetic relationships of the Iuridae taxa, 2) evaluate the morphological classifications, and 3) obtain insights into the biogeographic history of the family in the East Mediterranean. The multi-locus phylogeny clearly confirms an ancient division into two clades, Calchinae and Iurinae. Ancient patterns of isolation and dispersal are revealed. Both subfamilies are largely confined to the Anatolian peninsula and its few coastal islands; only the most derived genus Iurus has dispersed westward to Crete and Peloponnese. Based on our findings, three new genera of Iurinae (Metaiurus, Anatoliurus, and Letoiurus) are established. The genus Neocalchas emerges as one of the most ancient scorpion clades, with divergence time about 27 mya.
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Novaes-e-Fagundes G, Lyra ML, Loredam VSA, Carvalho TR, Haddad CFB, Rodrigues MT, Baldo D, Barrasso DA, Loebmann D, Ávila RW, Brusquetti F, Prudente ALC, Wheeler WC, Goyannes Dill Orrico V, Peloso P. A tale of two bellies: systematics of the oval frogs (Anura: Microhylidae: Elachistocleis Parker, 1927). Zool J Linn Soc 2022. [DOI: 10.1093/zoolinnean/zlac057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
Oval frogs (Elachistocleis) have a broad geographic distribution covering nearly all of South America and parts of Central America. They also have a large inter- and intraspecific variation of the few morphological characters commonly used as diagnostic traits among species of the genus. Based on molecular data, we provide the most complete phylogeny of Elachistocleis to date, and explore its genetic diversity using distance-based and tree-based methods for putative species delimitation. Our results show that at least two of the most relevant traditional characters used in the taxonomy of this group (belly pattern and dorsal median white line) carry less phylogenetic information than previously thought. Based on our results, we propose some synonymizations and some candidate new species. This study is a first major step in disentangling the current systematics of Elachistocleis. Yet, a comprehensive review of morphological data is needed before any new species descriptions can be properly made.
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Affiliation(s)
- Gabriel Novaes-e-Fagundes
- Tropical Herpetology Laboratory, PPG Zoologia, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz , Ilhéus, Bahia , Brazil
| | - Mariana L Lyra
- Instituto de Biociências, Departamento de Biodiversidade e Centro de Aquicultura (CAUNESP), Universidade Estadual Paulista , Rio Claro, São Paulo , Brazil
| | - Vinicius S A Loredam
- Instituto de Biociências, Departamento de Biodiversidade e Centro de Aquicultura (CAUNESP), Universidade Estadual Paulista , Rio Claro, São Paulo , Brazil
| | - Thiago R Carvalho
- Instituto de Biociências, Departamento de Biodiversidade e Centro de Aquicultura (CAUNESP), Universidade Estadual Paulista , Rio Claro, São Paulo , Brazil
| | - Célio F B Haddad
- Instituto de Biociências, Departamento de Biodiversidade e Centro de Aquicultura (CAUNESP), Universidade Estadual Paulista , Rio Claro, São Paulo , Brazil
| | - Miguel T Rodrigues
- Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo , São Paulo , Brazil
| | - Diego Baldo
- Laboratorio de Genética Evolutiva, Instituto de Biología Subtropical `Claudio Juan Bidau’ (CONICET-UNaM), Facultad de Ciencias Exactas Químicas y Naturales, Universidad Nacional de Misiones , Posadas, Misiones , Argentina
| | - Diego A Barrasso
- Instituto de Diversidad y Evolución Austral (IDEAus-CONICET) , Puerto Madryn, Chubut , Argentina
- Facultad de Ciencias Naturales y Ciencias de la Salud, Universidad Nacional de la Patagonia `San Juan Bosco’ , Puerto Madryn, Chubut , Argentina
| | - Daniel Loebmann
- Laboratório de Vertebrados, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande , Rio Grande, Rio Grande do Sul , Brazil
| | - Robson W Ávila
- Departamento de Biologia, Núcleo Regional de Ofiologia da UFC, Universidade Federal do Ceará , Fortaleza, Ceará , Brazil
| | - Francisco Brusquetti
- Instituto de Investigación Biológica del Paraguay , Del Escudo, Asunción , Paraguay
| | - Ana L C Prudente
- Laboratório de Herpetologia, Coordenação de Zoologia, Museu Paraense Emílio Goeldi , Belém, Pará , Brazil
| | - Ward C Wheeler
- Division of Invertebrate Zoology, American Museum of Natural History , New York, NY , USA
| | - Victor Goyannes Dill Orrico
- Tropical Herpetology Laboratory, PPG Zoologia, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz , Ilhéus, Bahia , Brazil
| | - Pedro Peloso
- Laboratório de Herpetologia, Coordenação de Zoologia, Museu Paraense Emílio Goeldi , Belém, Pará , Brazil
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27
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Pinochet R, Pardo LM, Cárdenas L. Assessing diversity of King Crab
Lithodes
spp. in the south‐eastern pacific using phylogeny and molecular species delimitation methods. Ecol Evol 2022; 12:e9143. [PMID: 35923941 PMCID: PMC9339758 DOI: 10.1002/ece3.9143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 06/28/2022] [Accepted: 07/01/2022] [Indexed: 11/08/2022] Open
Abstract
The purpose of this study was to test the hypothesis that the genetic diversity of commercially significant species of King Crabs (Lithodes spp.) along the south‐eastern Pacific (SEP) comprises different independent evolutionary units (IEUs) with spatially isolated distribution. Nine localities from inner and open waters along the SEP Chilean coast (39°S‐55°S) were sampled. We analyzed sequences from 173 individuals for the mitochondrial gene Cytochrome oxidase I (COX‐I), 151 individuals for the Internal Transcribed Spacer 1 (ITS) and 135 for the structural ribosomal RNA (28S). Genetic delimitation was performed through three analytical methods: ABGD, GMYC, and its Bayesian implementation, bGMYC. Bayesian phylogenetic analyses and haplotype networks were also performed. Divergence time between clades was assessed for the COX‐I marker and estimated from known evolutionary rates for this marker in other crustacean species and fossil calibration from other Anomuran species. Delimitation analyses, phylogenetic analyses, and mitochondrial haplotype networks suggested the presence of two deeply divergent mitochondrial lineages of Lithodes in the SEP, referred to as Clade1 and Clade 2. Nuclear markers showed low phylogenetic resolution and therefore were unsuitable for molecular species delimitation. Divergence time analysis of the mitochondrial lineages suggests a separation between Clades of approximately 2.3 Mya. The divergence time obtained suggested that Pliocene glaciations and deglaciations cycles could be involved in hybridization events between Lithodes IEUs at southern tip of South American coasts. The different frequencies of Lithodes haplotypes in inner and open water environments along SEP coasts could be explained by events such as the last glacial maximum or by differences in the adaptation of each clade to different environments. These findings support the necessity of evaluating the taxonomic status of Lithodes individuals found along SEP coasts under an integrative taxonomy approach or through markers with other evolution rates than those already used.
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Affiliation(s)
- Ramona Pinochet
- Programa de Doctorado en Biología Marina, Facultad de Ciencias Universidad Austral de Chile Valdivia Chile
- Centro de Investigación de Dinámica de Ecosistemas Marinos de Altas Latitudes (IDEAL) Valdivia Chile
| | - Luis Miguel Pardo
- Centro de Investigación de Dinámica de Ecosistemas Marinos de Altas Latitudes (IDEAL) Valdivia Chile
- Instituto de Ciencias Marinas y Limnológicas, Facultad de Ciencias Universidad Austral de Chile Valdivia Chile
| | - Leyla Cárdenas
- Centro de Investigación de Dinámica de Ecosistemas Marinos de Altas Latitudes (IDEAL) Valdivia Chile
- Instituto de Ciencias ambientales y evolutivas, Facultad de Ciencias Universidad Austral de Chile Valdivia Chile
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Flouri T, Huang J, Jiao X, Kapli P, Rannala B, Yang Z. Bayesian phylogenetic inference using relaxed-clocks and the multispecies coalescent. Mol Biol Evol 2022; 39:6652437. [PMID: 35907248 PMCID: PMC9366188 DOI: 10.1093/molbev/msac161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The multispecies coalescent (MSC) model accommodates both species divergences and within-species coalescent and provides a natural framework for phylogenetic analysis of genomic data when the gene trees vary across the genome. The MSC model implemented in the program bpp assumes a molecular clock and the Jukes–Cantor model, and is suitable for analyzing genomic data from closely related species. Here we extend our implementation to more general substitution models and relaxed clocks to allow the rate to vary among species. The MSC-with-relaxed-clock model allows the estimation of species divergence times and ancestral population sizes using genomic sequences sampled from contemporary species when the strict clock assumption is violated, and provides a simulation framework for evaluating species tree estimation methods. We conducted simulations and analyzed two real datasets to evaluate the utility of the new models. We confirm that the clock-JC model is adequate for inference of shallow trees with closely related species, but it is important to account for clock violation for distant species. Our simulation suggests that there is valuable phylogenetic information in the gene-tree branch lengths even if the molecular clock assumption is seriously violated, and the relaxed-clock models implemented in bpp are able to extract such information. Our Markov chain Monte Carlo algorithms suffer from mixing problems when used for species tree estimation under the relaxed clock and we discuss possible improvements. We conclude that the new models are currently most effective for estimating population parameters such as species divergence times when the species tree is fixed.
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Affiliation(s)
- Tomáš Flouri
- Department of Genetics, Evolution, and Environment, University College London, Gower Street, London WC1E 6BT, UK
| | - Jun Huang
- Department of Genetics, Evolution, and Environment, University College London, Gower Street, London WC1E 6BT, UK.,School of Biomedical Engineering, Capital Medical University, Beijing, 100069, China
| | - Xiyun Jiao
- Department of Genetics, Evolution, and Environment, University College London, Gower Street, London WC1E 6BT, UK.,Department of Statistics and Data Science, China Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Paschalia Kapli
- Department of Genetics, Evolution, and Environment, University College London, Gower Street, London WC1E 6BT, UK
| | - Bruce Rannala
- Department of Evolution and Ecology, University of California, Davis, CA 95616, USA
| | - Ziheng Yang
- Department of Genetics, Evolution, and Environment, University College London, Gower Street, London WC1E 6BT, UK
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Douglas J, Bouckaert R. Quantitatively defining species boundaries with more efficiency and more biological realism. Commun Biol 2022; 5:755. [PMID: 35902726 PMCID: PMC9334598 DOI: 10.1038/s42003-022-03723-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 07/12/2022] [Indexed: 11/09/2022] Open
Abstract
We introduce a widely applicable species delimitation method based on the multispecies coalescent model that is more efficient and more biologically realistic than existing methods. We extend a threshold-based method to allow the ancestral speciation rate to vary through time as a smooth piecewise function. Furthermore, we introduce the cutting-edge proposal kernels of StarBeast3 to this model, thus enabling rapid species delimitation on large molecular datasets and allowing the use of relaxed molecular clock models. We validate these methods with genomic sequence data and SNP data, and show they are more efficient than existing methods at achieving parameter convergence during Bayesian MCMC. Lastly, we apply these methods to two datasets (Hemidactylus and Galagidae) and find inconsistencies with the published literature. Our methods are powerful for rapid quantitative testing of species boundaries in large multilocus datasets and are implemented as an open source BEAST 2 package called SPEEDEMON. Introducing SPEEDEMON, a package for BEAST 2 that better defines species boundaries based on molecular data demonstrated on gecko and loris datasets.
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Affiliation(s)
- Jordan Douglas
- School of Computer Science, The University of Auckland, Auckland, New Zealand.
| | - Remco Bouckaert
- School of Computer Science, The University of Auckland, Auckland, New Zealand
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Phylogeny of Telmatobius marmoratus complex (Anura, Telmatobiidae) reveals high cryptic diversity in the Andean Altiplano. Mol Phylogenet Evol 2022; 176:107594. [PMID: 35905820 DOI: 10.1016/j.ympev.2022.107594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 07/19/2022] [Accepted: 07/21/2022] [Indexed: 11/23/2022]
Abstract
Telmatobius is the most diverse group of anurans in the Andean Altiplano (highlands) Morphologically, these amphibians have a generally conserved morphology but in turn present large intraspecific variation, which has led to a complex taxonomy and systematics. T. marmoratus has the widest distribution of the genus and forms a complex composed of at least two Telmatobius species. Partial systematic studies based on molecular evidence reveal the existence of three lineages with a complex spatial distribution. However, these studies did not include the entire distribution of T. marmoratus. Our study aims to reassess the current systematic scenario including the complete distribution of the complex. For this, we used a multilocus approach based on mitochondrial (16S, Cytb) and nuclear (RAG1-1, BFIB) DNA sequences to build a phylogenetic hypothesis based on Bayesian inference, maximum likelihood and maximum parsimony. Subsequently, we performed single-locus (ABGD and PTP) and multilocus (STACEY) species delimitation analyses to verify the diversity of nominal species within the complex. The analyses suggest seven non-sibling lineages and 6-10 candidate species within the marmoratus complex. Only one of the two lineages restricted to the central northern plateau correspond to T. marmoratus sensu stricto. South-central marbled water frogs belong to completely new lineages closer to T. gigas and T. culeus, evidencing the polyphyletic condition of the marmoratus complex. The findings of several sympatric lineages in some localities reveal a complex history of ancient water connections in south-central Altiplano.
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Palmieri L, Lourdes Chamorro M, Sharma PP. Phylogenetic assessment of the Metamasius hemipterus species complex (Coleoptera, Curculionidae, Dryophthorinae). Mol Phylogenet Evol 2022; 175:107589. [PMID: 35843571 DOI: 10.1016/j.ympev.2022.107589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 07/05/2022] [Accepted: 07/11/2022] [Indexed: 11/16/2022]
Abstract
Metamasius is a large genus of dryophthorine weevils, with nearly 85 species. Among the economically important pests in the genus, M. hemipterus is currently separated in three subspecies, based largely on color patterns of the elytra, pronotum, and sternum. The tenuous limits of M. hemipterus subspecies were created over fifty years ago and never tested under a phylogenetic framework. Here, for the first time, we address the M. hemipterus species boundaries applying a molecular approach. We constructed a reduced genome representation of a few species using restriction site-associated DNA sequencing (RADseq). Phylogenetic analysis using either a complete supermatrix or only SNPs revealed a clear separation of Metamasius species. We suggest that M. h. carbonarius syn. nov. and M. h. sericeus be treated as the same species, M. sericeus (Oliver) stat. n., and elevate M. h. hemipterus as a separate species M. hemipterus (Linnaeus). We updated Vaurie's identification key to reflect the new species status. This systematic reassessment reflects a more natural classification for these remarkable and economically significant weevils.
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Affiliation(s)
- Luciano Palmieri
- Department of Integrative Biology, University of Wisconsin-Madison, Madison, 53706 WI, USA.
| | - Maria Lourdes Chamorro
- Systematic Entomology Laboratory, ARS, USDA, c/o National Museum of Natural History, 10th and Constitution, NW, Washington, DC 20560, USA
| | - Prashant P Sharma
- Department of Integrative Biology, University of Wisconsin-Madison, Madison, 53706 WI, USA
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Naciri Y, Toprak Z, Prentice HC, Hugot L, Troia A, Burgarella C, Gradaille JL, Jeanmonod D. Convergent Morphological Evolution in Silene Sect. Italicae (Caryophyllaceae) in the Mediterranean Basin. FRONTIERS IN PLANT SCIENCE 2022; 13:695958. [PMID: 35903238 PMCID: PMC9319200 DOI: 10.3389/fpls.2022.695958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 06/06/2022] [Indexed: 06/15/2023]
Abstract
Recent divergence can obscure species boundaries among closely related taxa. Silene section Italicae (Caryophyllaceae) has been taxonomically controversial, with about 30 species described. We investigate species delimitation within this section using 500 specimens sequenced for one nuclear and two plastid markers. Despite the use of a small number of genes, the large number of sequenced samples allowed confident delimitation of 50% of the species. The delimitation of other species (e.g., Silene nemoralis, S. nodulosa and S. andryalifolia) was more challenging. We confirmed that seven of the ten chasmophyte species in the section are not related to each other but are, instead, genetically closer to geographically nearby species belonging to Italicae yet growing in open habitats. Adaptation to chasmophytic habitats therefore appears to have occurred independently, as a result of convergent evolution within the group. Species from the Western Mediterranean Basin showed more conflicting species boundaries than species from the Eastern Mediterranean Basin, where there are fewer but better-delimited species. Significant positive correlations were found between an estimation of the effective population size of the taxa and their extent of occurrence (EOO) or area of occupancy (AOO), and negative but non-significant correlations between the former and the posterior probability (PP) of the corresponding clades. These correlations might suggest a lower impact of incomplete lineage sorting in species with low effective population sizes and small distributional ranges compared with that in species inhabiting large areas. Finally, we confirmed that S. italica and S. nemoralis are distinct species, that S. nemoralis might furthermore include two different species and that S. velutina from Corsica and S. hicesiae from the Lipari Islands are sister species.
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Affiliation(s)
- Yamama Naciri
- Unité Systématique et Médiation, Conservatoire et Jardin botaniques de Genève, Geneva, Switzerland
- Plant Systematics and Biodiversity Laboratory, Department of Botany and Plant Biology, University of Geneva, Geneva, Switzerland
| | - Zeynep Toprak
- Unité Systématique et Médiation, Conservatoire et Jardin botaniques de Genève, Geneva, Switzerland
- Plant Systematics and Biodiversity Laboratory, Department of Botany and Plant Biology, University of Geneva, Geneva, Switzerland
- Department of Molecular Biology and Genetic, Faculty of Sciences, University of Dicle, Diyarbakir, Turkey
| | | | - Laetitia Hugot
- Conservatoire botanique national de Corse, Office de l’Environment de la Corse, Corte, France
| | - Angelo Troia
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche, Università degli Studi di Palermo, Palermo, Italy
| | | | | | - Daniel Jeanmonod
- Unité Systématique et Médiation, Conservatoire et Jardin botaniques de Genève, Geneva, Switzerland
- Plant Systematics and Biodiversity Laboratory, Department of Botany and Plant Biology, University of Geneva, Geneva, Switzerland
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Wu R, Liu X, Guo L, Zhou C, Ouyang S, Wu X. DNA barcoding, multilocus phylogeny, and morphometry reveal phenotypic plasticity in the Chinese freshwater mussel Lamprotula caveata (Bivalvia: Unionidae). Ecol Evol 2022; 12:e9035. [PMID: 35845369 PMCID: PMC9277607 DOI: 10.1002/ece3.9035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 05/16/2022] [Accepted: 05/30/2022] [Indexed: 11/11/2022] Open
Abstract
Accurate species identification is crucial for developing conservation strategies for freshwater mussels, one of the most imperiled faunas in the world. Traditionally, mussel species description primarily relied on conchological characters. However, shell morphology has great variability, which leads to the complexity of species delimitation. As endemic species to China, Lamprotula caveata was originally described by Heude (1877). Lamprotula quadrangulosus and Lamprotula contritus were considered for synonymization of L. caveata based on shell variants in the early 20th century, which has been long debated due to lack of rigorous molecular analysis. Moreover, great morphological variation caused doubt whether there are cryptic species. In this study, we used a combined phylogenetic and morphometric approach to verify the validity of the synonymization of L. caveata. The results of molecular species delimitation showed that two molecular operational taxonomic units (MOTUs) were identified in Lamprotula spp., including the L. leaii lineage and the complex lineage (L. quadrangulosa, L. cornuumlunae, L. contritus, and L. caveata). Phylogenetic analyses revealed that L. cornuumlunae formed a basal monophyletic clade, whose divergence time was relatively recent (4.26 Ma [95% HPD = 1.91–7.22 Ma]), and L. contritus, L. caveata, and L. quadrangulosa formed a large polytomy group with very shallow branches. In the previous study, we have demonstrated the validity of L. cornuumlunae. The molecular evidences supported that the complex (L. quadrangulosa + L. contritus + L. caveata) was a valid species; L. quadrangulosa and L. contritus were synonyms of L. caveata. In addition, three morphospecies (L. quadrangulosa, L. contritus, and L. caveata) were aggregated without clear differentiation based on shell morphometric analysis. We confirmed multiple phenotypes in L. caveata for species identification and presumed that the phenotypic plasticity was a response to specific habitats. This study clarified the diversity and phylogeny of the Lamprotula group, which is a crucial step for developing new conservation and management strategies for this imperiled group.
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Affiliation(s)
- Ruiwen Wu
- School of Life Science Shanxi Normal University Taiyuan China
| | - Xiongjun Liu
- School of Life Science Jiaying University Meizhou China
| | - Liang Guo
- Fuzhou Wilds of Insects Cultural Creativity Co., Ltd. Fuzhou China
| | - Chunhua Zhou
- School of Life Sciences Nanchang University Nanchang China
| | - Shan Ouyang
- School of Life Sciences Nanchang University Nanchang China
| | - Xiaoping Wu
- School of Life Sciences Nanchang University Nanchang China
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Ancona JJ, Pinzón-Esquivel JP, Ruiz-Sánchez E, Palma-Silva C, Ortiz-Díaz JJ, Tun-Garrido J, Carnevali G, Raigoza NE. Multilocus Data Analysis Reveal the Diversity of Cryptic Species in the Tillandsia ionantha (Bromeliaceae: Tillansiodeae) Complex. PLANTS 2022; 11:plants11131706. [PMID: 35807663 PMCID: PMC9269404 DOI: 10.3390/plants11131706] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/16/2022] [Accepted: 06/22/2022] [Indexed: 11/16/2022]
Abstract
Independent evolutionary lineages or species that lack phenotypic variation as an operative criterion for their delimitation are known as cryptic species. However, these have been delimited using other data sources and analysis. The aims of this study are: (1) to evaluate the divergence of the populations of the T. ionantha complex; and (2) to delimit the species using multilocus data, phylogenetic analysis and the coalescent model. Phylogenetic analyses, genetic diversity and population structure, and isolation by distance analysis were performed. A multispecies coalescent analysis to delimit the species was conducted. Phylogenetic analysis showed that T. ionantha is polyphyletic composed of eight evolutionary lineages. Haplotype distribution and genetic differentiation analysis detected strong population structure and high values of genetic differentiation among populations. The positive correlation between genetic differences with geographic distance indicate that the populations are evolving under the model of isolation by distance. The coalescent multispecies analysis performed with starBEAST supports the recognition of eight lineages as different species. Only three out of the eight species have morphological characters good enough to recognize them as different species, while five of them are cryptic species. Tillandsia scaposa and T. vanhyningii are corroborated as independent lineages, and T. ionantha var. stricta changed status to the species level.
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Affiliation(s)
- Juan J. Ancona
- Departamento de Botánica-Herbario UADY, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán, Carretera Mérida-Xmatkuil km 15.5, Mérida 97315, Mexico; (J.P.P.-E.); (J.J.O.-D.); (J.T.-G.)
- Correspondence:
| | - Juan P. Pinzón-Esquivel
- Departamento de Botánica-Herbario UADY, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán, Carretera Mérida-Xmatkuil km 15.5, Mérida 97315, Mexico; (J.P.P.-E.); (J.J.O.-D.); (J.T.-G.)
| | - Eduardo Ruiz-Sánchez
- Departamento de Botánica y Zoología, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Las Agujas, Zapopan 45200, Mexico;
| | - Clarisse Palma-Silva
- Departamento de Biologia Vegetal, Universidade Estadual de Campinas, Rua Monteiro Lobato 255, CEP, Campinas 13083-862, Brazil;
| | - Juan J. Ortiz-Díaz
- Departamento de Botánica-Herbario UADY, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán, Carretera Mérida-Xmatkuil km 15.5, Mérida 97315, Mexico; (J.P.P.-E.); (J.J.O.-D.); (J.T.-G.)
| | - Juan Tun-Garrido
- Departamento de Botánica-Herbario UADY, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán, Carretera Mérida-Xmatkuil km 15.5, Mérida 97315, Mexico; (J.P.P.-E.); (J.J.O.-D.); (J.T.-G.)
| | - Germán Carnevali
- Unidad de Recursos Naturales, Centro de Investigación Científica de Yucatán A. C. Calle 43 #130, Colonia Chuburná de Hidalgo, Mérida 97215, Mexico; (G.C.); (N.E.R.)
| | - Néstor E. Raigoza
- Unidad de Recursos Naturales, Centro de Investigación Científica de Yucatán A. C. Calle 43 #130, Colonia Chuburná de Hidalgo, Mérida 97215, Mexico; (G.C.); (N.E.R.)
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Tomasello S, Oberprieler C. Reticulate Evolution in the Western Mediterranean Mountain Ranges: The Case of the Leucanthemopsis Polyploid Complex. FRONTIERS IN PLANT SCIENCE 2022; 13:842842. [PMID: 35783934 PMCID: PMC9247603 DOI: 10.3389/fpls.2022.842842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 05/18/2022] [Indexed: 06/15/2023]
Abstract
Polyploidization is one of the most common speciation mechanisms in plants. This is particularly relevant in high mountain environments and/or in areas heavily affected by climatic oscillations. Although the role of polyploidy and the temporal and geographical frameworks of polyploidization have been intensively investigated in the alpine regions of the temperate and arctic biomes, fewer studies are available with a specific focus on the Mediterranean region. Leucanthemopsis (Asteraceae) consists of six to ten species with several infraspecific entities, mainly distributed in the western Mediterranean Basin. It is a polyploid complex including montane, subalpine, and strictly alpine lineages, which are locally distributed in different mountain ranges of Western Europe and North Africa. We used a mixed approach including Sanger sequencing and (Roche-454) high throughput sequencing of amplicons to gather information from single-copy nuclear markers and plastid regions. Nuclear regions were carefully tested for recombinants/PCR artifacts and for paralogy. Coalescent-based methods were used to infer the number of polyploidization events and the age of formation of polyploid lineages, and to reconstruct the reticulate evolution of the genus. Whereas the polyploids within the widespread Leucanthemopsis alpina are autopolyploids, the situation is more complex among the taxa endemic to the western Mediterranean. While the hexaploid, L. longipectinata, confined to the northern Moroccan mountain ranges (north-west Africa), is an autopolyploid, the Iberian polyploids are clearly of allopolyploid origins. At least two different polyploidization events gave rise to L. spathulifolia and to all other tetraploid Iberian taxa, respectively. The formation of the Iberian allopolyploids took place in the early Pleistocene and was probably caused by latitudinal and elevational range shifts that brought into contact previously isolated Leucanthemopsis lineages. Our study thus highlights the importance of the Pleistocene climatic oscillations and connected polyploidization events for the high plant diversity in the Mediterranean Basin.
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Affiliation(s)
- Salvatore Tomasello
- Department of Systematics, Biodiversity and Evolution of Plants (With Herbarium), University of Göttingen, Göttingen, Germany
| | - Christoph Oberprieler
- Evolutionary and Systematic Botany Group, Institute of Plant Sciences, University of Regensburg, Regensburg, Germany
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Young MK, Smith R, Pilgrim KL, Isaak DJ, McKelvey KS, Parkes S, Egge J, Schwartz MK. A Molecular Taxonomy of Cottus in western North America. WEST N AM NATURALIST 2022. [DOI: 10.3398/064.082.0208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Michael K. Young
- USDA Forest Service, National Genomics Center for Wildlife and Fish Conservation, Rocky Mountain Research Station, 800 E. Beckwith Avenue, Missoula, MT 59802
| | - Rebecca Smith
- USDA Forest Service, National Genomics Center for Wildlife and Fish Conservation, Rocky Mountain Research Station, 800 E. Beckwith Avenue, Missoula, MT 59802
| | - Kristine L. Pilgrim
- USDA Forest Service, National Genomics Center for Wildlife and Fish Conservation, Rocky Mountain Research Station, 800 E. Beckwith Avenue, Missoula, MT 59802
| | - Daniel J. Isaak
- USDA Forest Service, Rocky Mountain Research Station, 322 East Front Street Suite 401, Boise, ID 83702
| | - Kevin S. McKelvey
- USDA Forest Service, National Genomics Center for Wildlife and Fish Conservation, Rocky Mountain Research Station, 800 E. Beckwith Avenue, Missoula, MT 59802
| | - Sharon Parkes
- USDA Forest Service, Rocky Mountain Research Station, 322 East Front Street Suite 401, Boise, ID 83702
| | - Jacob Egge
- Department of Biology, Pacific Lutheran University, Tacoma, WA 98447
| | - Michael K. Schwartz
- USDA Forest Service, National Genomics Center for Wildlife and Fish Conservation, Rocky Mountain Research Station, 800 E. Beckwith Avenue, Missoula, MT 59802
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Machado S, Hartwig Bessa M, Nornberg B, Silva Gottschalk M, Robe LJ. Unveiling the Mycodrosophila projectans (Diptera, Drosophilidae) species complex: Insights into the evolution of three Neotropical cryptic and syntopic species. PLoS One 2022; 17:e0268657. [PMID: 35613123 PMCID: PMC9132268 DOI: 10.1371/journal.pone.0268657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 05/04/2022] [Indexed: 11/22/2022] Open
Abstract
The Zygothrica genus group has been shown to be speciose, with a high number of cryptic species. DNA barcoding approaches have been a valuable tool to uncover cryptic diversity in this lineage, as recently suggested for the Neotropical Mycodrosophila projectans complex, which seems to comprise at least three different species. The aim of this study was to confirm the subdivision of the M. projectans complex while shedding some light on the patterns and processes related to its diversification. In this sense, the use of single and multi-locus datasets under phylogenetic, distance, coalescence, and diagnostic nucleotide approaches confirmed the presence of at least three species under the general morphotype previously described as M. projectans. Only a few subtle morphological differences were found for the three species in terms of aedeagus morphology and abdominal color patterns. Ecologically, sympatry and syntopy seem to be recurrent for these three cryptic species, which present widely overlapping niches, implying niche conservatism. This morphological and ecological similarity has persisted though cladogenesis within the complex, which dates back to the Miocene, providing an interesting example of morphological conservation despite ancient divergence. These results, in addition to contrasting patterns of past demographic fluctuations, allowed us to hypothesize patterns of allopatric or parapatric diversification with secondary contact in Southern Brazil. Nevertheless, genetic diversity was generally high within species, suggesting that migration may encompass an adaptive response to the restrictions imposed by the ephemerality of resources.
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Affiliation(s)
- Stela Machado
- Universidade Federal de Santa Maria (UFSM), Programa de Pós-Graduação em Biodiversidade Animal (PPGBA), Santa Maria, RS, Brazil
| | - Maiara Hartwig Bessa
- Universidade Federal de Santa Maria (UFSM), Programa de Pós-Graduação em Biodiversidade Animal (PPGBA), Santa Maria, RS, Brazil
| | - Bruna Nornberg
- Universidade Federal do Rio Grande (FURG), Instituto de Ciências Biológicas (ICB), Rio Grande, RS, Brasil
| | - Marco Silva Gottschalk
- Departamento de Ecologia, Zoologia e Genética, Universidade Federal de Pelotas (UFPel), Instituto de Biologia, Campus Capão do Leão, Capão do Leão, RS, Brazil
| | - Lizandra Jaqueline Robe
- Universidade Federal de Santa Maria (UFSM), Programa de Pós-Graduação em Biodiversidade Animal (PPGBA), Santa Maria, RS, Brazil
- * E-mail:
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Phylogeography and evolutionary history of the Panamic Clingfish Gobiesox adustus in the Tropical Eastern Pacific. Mol Phylogenet Evol 2022; 173:107496. [PMID: 35569809 DOI: 10.1016/j.ympev.2022.107496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 02/26/2022] [Accepted: 04/18/2022] [Indexed: 11/20/2022]
Abstract
The Panamic Clingfish Gobiesox adustus is widely distributed in the Tropical Eastern Pacific (TEP), from the central Gulf of California, Mexico to Ecuador, including the oceanic Revillagigedo Archipelago, and Isla del Coco. This cryptobenthic species is restricted to very shallow rocky-reef habitats. Here, we used one mitochondrial and three nuclear DNA markers from 155 individuals collected across the distribution range of the species in order to evaluate if geographically structured populations exist and to elucidate its evolutionary history. Phylogenetic analyses recovered a monophyletic group, with four well-supported, allopatric subgroups. Each subgroup corresponded to one of the following well-known biogeographic regions/provinces: 1) the Revillagigedo Archipelago, 2) the Cortez + Mexican provinces (Mexico), 3) the Panamic province (from El Salvador to Ecuador), and 4) Isla del Coco. A molecular-clock analysis showed a mean date for the divergence between clade I (the Revillagigedos and Cortez + Mexican provinces) and clade II (Panamic province and Isla del Coco) in the Pliocene, at ca. 5.33 Mya. Within clade I, the segregation between the Revillagigedos and Cortez + Mexican province populations was dated at ca. 1.18 Mya, during the Pleistocene. Within clade II, the segregation between samples of Isla del Coco and the Panamic province samples was dated at ca. 0.77 Mya, during the Pleistocene. The species tree, Bayesian species delimitation tests (BPP and STACEY), the ΦST, AMOVA, and the substantial genetic distances that exist between those four subgroups, indicate that they are independent evolutionary units. These cladogenetic events seem to be related to habitat discontinuities, and oceanographic and geological processes that produce barriers to gene flow for G. adustus, effects of which are enhanced by the intrinsic ecological characteristics of this species.
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Cruz DD, Arellano E. Molecular data confirm Triatoma pallidipennis Stål, 1872 (Hemiptera: Reduviidae: Triatominae) as a novel cryptic species complex. Acta Trop 2022; 229:106382. [PMID: 35189124 DOI: 10.1016/j.actatropica.2022.106382] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 02/17/2022] [Accepted: 02/17/2022] [Indexed: 12/11/2022]
Abstract
Triatoma pallidipennis constitues one of the most important Chagas disease vector in Mexico. Previous studies based on molecular data suggest T. pallidipennis as a complex of cryptic species. For that reason, we analyzed the phylogenetic relationships of T. pallidipennis using DNA sequences from the mitochondrial ND4 gene and the ITS-2 gene. In addition, the divergence times were estimated, and possible new taxa were delimited with three species delimitation methods. Finally, genetic distances and possible connectivity routes based on shared haplotypes were obtained among the T. pallidipennis populations. Five haplogroups (possible cryptic species) were found, based on delimitation methods and genetic distances. Haplogroup divergence began about 3 Ma, in the Pleistocene. Moreover, none of the haplogroups showed potential connectivity routes between them, evidencing lack of gene flow. Our results suggest the existence of a new cryptic species complex within what is currently recognized as a T. pallidipennis.
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Affiliation(s)
- Daryl D Cruz
- Centro de Investigación en Biodiversidad y Conservación (CIByC), UAEM, Cuernavaca, Morelos, Mexico
| | - Elizabeth Arellano
- Centro de Investigación en Biodiversidad y Conservación (CIByC), UAEM, Cuernavaca, Morelos, Mexico.
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40
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Somoza-Valdeolmillos E, Gómez-Moliner BJ, Caro A, Chueca LJ, Martínez-Ortí A, Puente AI, Madeira MJ. Molecular phylogeny of the genus Chondrina (Gastropoda, Panpulmonata, Chondrinidae) in the Iberian Peninsula. Mol Phylogenet Evol 2022; 172:107480. [PMID: 35452839 DOI: 10.1016/j.ympev.2022.107480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 03/23/2022] [Accepted: 04/05/2022] [Indexed: 11/29/2022]
Abstract
Chondrina Reichenbach, 1828 is a highly diverse genus of terrestrial molluscs currently including 44 species with about 28 subspecific taxa. It is distributed through North Africa, central and southern Europe, from Portugal in the West to the Caucasus and Asia Minor in the East. Approximately 70% of the species are endemic to the Iberian Peninsula constituting its main center of speciation with 34 species. This genus includes many microendemic taxa, some of them not yet described, confined to limestone habitats (being strictly rock-dwelling species). They are distributed on rocky outcrops up to 2000 m.a.s.l. It is a genus of conical-fusiform snails that differ mainly in shell characters and in the number and position of teeth in their aperture. So far, molecular studies on Chondrina have been based exclusively on the mitochondrial Cytochrome Oxidase subunit I region (COI). These studies gave a first view of the phylogeny of the genus but many inner nodes were not statistically supported. The main objective of the study is to obtain a better understanding of the phylogeny and systematics of the genus Chondrina on the Iberian Peninsula, using multilocus molecular analysis. Partial sequences of the COI and 16S rRNA genes, as well as of the nuclear Internal Transcribed Spacer 1 (ITS1-5.8S) and Internal Transcribed Spacer 2 (5.8S-ITS2-28S) were obtained from individuals of all the extant Chondrina species known from the Iberian Peninsula. In addition to this, the newly obtained COI sequences were combined with those previously published in the GenBank. Phylogenetic relationships were inferred using maximum likelihood and Bayesian methods. The reconstructed phylogenies showed high values of support for more recent branches and basal nodes. Moreover, molecular species delimitation allowed to better definethe studied species and check the presence of new taxa.
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Affiliation(s)
- Eder Somoza-Valdeolmillos
- University of the Basque Country (UPV/EHU), Faculty of Pharmacy, Department of Zoology and Animal Cell Biology: Paseo de la Universidad, 7. 01006 Vitoria-Gasteiz, Spain; Biodiversity Research Group CIEA Lucio Lascaray, Avda. Miguel de Unamuno 3, 01006 Vitoria-Gasteiz, Álava, Spain.
| | - Benjamín J Gómez-Moliner
- University of the Basque Country (UPV/EHU), Faculty of Pharmacy, Department of Zoology and Animal Cell Biology: Paseo de la Universidad, 7. 01006 Vitoria-Gasteiz, Spain; Biodiversity Research Group CIEA Lucio Lascaray, Avda. Miguel de Unamuno 3, 01006 Vitoria-Gasteiz, Álava, Spain
| | - Amaia Caro
- University of the Basque Country (UPV/EHU), Faculty of Pharmacy, Department of Zoology and Animal Cell Biology: Paseo de la Universidad, 7. 01006 Vitoria-Gasteiz, Spain; Biodiversity Research Group CIEA Lucio Lascaray, Avda. Miguel de Unamuno 3, 01006 Vitoria-Gasteiz, Álava, Spain
| | - Luis J Chueca
- University of the Basque Country (UPV/EHU), Faculty of Pharmacy, Department of Zoology and Animal Cell Biology: Paseo de la Universidad, 7. 01006 Vitoria-Gasteiz, Spain; LOEWE-Centre for Translational Biodiversity Genomics (LOEWE-TBG), Senckenberg Nature Research Society, Senckenberganlage 25, 60325 Frankfurt am Main, Germany
| | - Alberto Martínez-Ortí
- Museu Valencià d'Història Natural, Apto. 8460, E-46018, Valencia and Universitat de València, Faculty of Pharmacy, Parasitology Departament, Burjassot, Valencia, (Spain)
| | - Ana I Puente
- University of the Basque Country (UPV/EHU), Faculty of Science and Technology, Department of Zoology and Animal Cell Biology: Barrio Sarriena s/n, 48015 Leioa, Spain
| | - María J Madeira
- University of the Basque Country (UPV/EHU), Faculty of Pharmacy, Department of Zoology and Animal Cell Biology: Paseo de la Universidad, 7. 01006 Vitoria-Gasteiz, Spain; Biodiversity Research Group CIEA Lucio Lascaray, Avda. Miguel de Unamuno 3, 01006 Vitoria-Gasteiz, Álava, Spain
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41
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Phillips JD, Gillis DJ, Hanner RH. Lack of Statistical Rigor in DNA Barcoding Likely Invalidates the Presence of a True Species' Barcode Gap. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.859099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
DNA barcoding has been largely successful in satisfactorily exposing levels of standing genetic diversity for a wide range of taxonomic groups through the employment of only one or a few universal gene markers. However, sufficient coverage of geographically-broad intra-specific haplotype variation within genomic databases like the Barcode of Life Data Systems (BOLD) and GenBank remains relatively sparse. As reference sequence libraries continue to grow exponentially in size, there is now the need to identify novel ways of meaningfully analyzing vast amounts of available DNA barcode data. This is an important issue to address promptly for the routine tasks of specimen identification and species discovery, which have seen broad adoption in areas as diverse as regulatory forensics and resource conservation. Here, it is demonstrated that the interpretation of DNA barcoding data is lacking in statistical rigor. To highlight this, focus is set specifically on one key concept that has become a household name in the field: the DNA barcode gap. Arguments outlined herein specifically center on DNA barcoding in animal taxa and stem from three angles: (1) the improper allocation of specimen sampling effort necessary to capture adequate levels of within-species genetic variation, (2) failing to properly visualize intra-specific and interspecific genetic distances, and (3) the inconsistent, inappropriate use, or absence of statistical inferential procedures in DNA barcoding gap analyses. Furthermore, simple statistical solutions are outlined which can greatly propel the use of DNA barcoding as a tool to irrefutably match unknowns to knowns on the basis of the barcoding gap with a high degree of confidence. Proposed methods examined herein are illustrated through application to DNA barcode sequence data from Canadian Pacific fish species as a case study.
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Bouckaert RR. An Efficient Coalescent Epoch Model for Bayesian Phylogenetic Inference. Syst Biol 2022; 71:1549-1560. [PMID: 35212733 PMCID: PMC9773037 DOI: 10.1093/sysbio/syac015] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 01/24/2022] [Accepted: 02/22/2022] [Indexed: 12/25/2022] Open
Abstract
We present a two-headed approach called Bayesian Integrated Coalescent Epoch PlotS (BICEPS) for efficient inference of coalescent epoch models. Firstly, we integrate out population size parameters, and secondly, we introduce a set of more powerful Markov chain Monte Carlo (MCMC) proposals for flexing and stretching trees. Even though population sizes are integrated out and not explicitly sampled through MCMC, we are still able to generate samples from the population size posteriors. This allows demographic reconstruction through time and estimating the timing and magnitude of population bottlenecks and full population histories. Altogether, BICEPS can be considered a more muscular version of the popular Bayesian skyline model. We demonstrate its power and correctness by a well-calibrated simulation study. Furthermore, we demonstrate with an application to SARS-CoV-2 genomic data that some analyses that have trouble converging with the traditional Bayesian skyline prior and standard MCMC proposals can do well with the BICEPS approach. BICEPS is available as open-source package for BEAST 2 under GPL license and has a user-friendly graphical user interface.[Bayesian phylogenetics; BEAST 2; BICEPS; coalescent model.].
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Affiliation(s)
- Remco R Bouckaert
- Correspondence to be sent to: University of Auckland, Thomas
Building, Room 407 3 Symonds St Auckland 1010 New Zealand E-mail:
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43
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Liu H, Tong Y, Zheng Y, Li S, Hou Z. Sea–land transition drove terrestrial amphipod diversification in East Asia, with a description of a new species. Zool J Linn Soc 2022. [DOI: 10.1093/zoolinnean/zlab119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Sea–land transition caused by marine incursion and regression is hypothesized to be a major driving force in terrestrial biodiversity, providing opportunities for marine ancestors to colonize terrestrial habitats and driving vicariant speciation in distinct geographical regions. Here, we test this hypothesis in East Asia using amphipods of the Morinoia japonica complex. We constructed a dataset from 269 individuals covering all known ranges of this species complex. Phylogenetic and biogeographic analyses revealed that sea–land transition during the Miocene drove the coastal ancestor to invade terrestrial habitats in East Asia and subsequently split into eight biogeographic lineages in eastern China, Korea, Japan and some Pacific islands. Stepping-stone dispersal resulted in a relatively wide distribution of M. japonica, and long-term geographical isolation led to the diversification of the M. japonica complex. Species delimitation analysis suggests that this complex contains eight species. We describe the geographical group from eastern China as a new species, Morinoia aosen sp. nov., based on genetic and morphological comparisons with other geographical groups. Type specimens are deposited in the Institute of Zoology, Chinese Academy of Sciences (IZCAS) in Beijing, China.
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Affiliation(s)
- Hongguang Liu
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Yan Tong
- College of Life Science, Anhui Normal University, Wuhu 241000, China
| | - Yami Zheng
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shuqiang Li
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Zhonge Hou
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
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44
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Martínez-Borrego D, Arellano E, González-Cózatl FX, Castro-Arellano I, León-Paniagua L, Rogers DS. Molecular systematics of the Reithrodontomys tenuirostris group (Rodentia: Cricetidae) highlighting the Reithrodontomys microdon species complex. J Mammal 2022; 103:29-44. [PMID: 35087329 PMCID: PMC8789765 DOI: 10.1093/jmammal/gyab133] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Accepted: 10/23/2021] [Indexed: 11/13/2022] Open
Abstract
The Reithrodontomys tenuirostris species group is considered "the most specialized" within the genus Reithrodontomys from morphological and ecological perspectives. Previous studies based on molecular data recommended changes in the taxonomy of the group. In particular, R. microdon has been the most taxonomically questioned, with the suggestion that it constitutes a complex of cryptic species. We analyzed the phylogenetic relationships of the R. tenuirostris species group using DNA sequences from the mitochondrial Cytochrome b gene and Intron 7 of the nuclear beta fibrinogen gene. In addition, divergence times were estimated, and possible new taxa delimited with three widely used species delimitation methods. Finally, possible connectivity routes based on shared haplotypes were tested among the R. microdon populations. All species were recovered as monophyletic with the exception of R. microdon, whose individuals were grouped into four different haplogroups, one of which included specimens of R. bakeri. Diversification within the R. tenuirostris species group began about 3 Ma, in the Pleistocene. The bGMYC and STACEY delimitation methods were congruent with each other, delimiting at the species-level each haplogroup within R. microdon, while the mPTP suggested a greater number of species. Moreover, none of the haplogroups showed potential connectivity routes between them, evidencing lack of gene flow. Our results suggest the existence of a higher number of species in the R. tenuirostris group, because we show that there are four species within what is currently recognized as R. microdon.
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Affiliation(s)
- Daily Martínez-Borrego
- Centro de Investigación en Biodiversidad y Conservación, Universidad Autónoma del Estado de Morelos, Avenida Universidad, Chamilpa, Cuernavaca, Morelos, México
| | - Elizabeth Arellano
- Centro de Investigación en Biodiversidad y Conservación, Universidad Autónoma del Estado de Morelos, Avenida Universidad, Chamilpa, Cuernavaca, Morelos, México
| | - Francisco X González-Cózatl
- Centro de Investigación en Biodiversidad y Conservación, Universidad Autónoma del Estado de Morelos, Avenida Universidad, Chamilpa, Cuernavaca, Morelos, México
| | | | - Livia León-Paniagua
- Colección de Mamíferos – Museo de Zoología “Alfonso L. Herrera”, Departamento de Biología Evolutiva, Facultad de Ciencias, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México, México
| | - Duke S Rogers
- Department of Biology and Monte L Bean Life Science Museum, Brigham Young University, Provo, UT, USA
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45
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Krásová J, Mikula O, Lavrenchenko LA, Šumbera R, Meheretu Y, Bryja J. A new rodent species of the genus Mus (Rodentia: Muridae) confirms the biogeographical uniqueness of the isolated forests of southern Ethiopia. ORG DIVERS EVOL 2022. [DOI: 10.1007/s13127-022-00539-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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46
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Svantesson S, Kõljalg U, Wurzbacher C, Saar I, Larsson KH, Larsson E. Polyozellus vs. Pseudotomentella: generic delimitation with a multi-gene dataset. Fungal Syst Evol 2022; 8:143-154. [PMID: 35005578 PMCID: PMC8687065 DOI: 10.3114/fuse.2021.08.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Accepted: 10/26/2021] [Indexed: 11/07/2022] Open
Abstract
Polyozellus and Pseudotomentella are two genera of closely related, ectomycorrhizal fungi in the order Thelephorales; the former stipitate and the latter corticioid. Both are widespread in the Northern Hemisphere and many species from both genera seem to be restricted to old growth forest. This study aimed to: a) identify genetic regions useful in inferring the phylogenetic relationship between Polyozellus and Pseudotomentella, b) infer this relationship with the regions identified and c) make any taxonomic changes warranted by the result. RPB2, mtSSU and nearly full-length portions of nrLSU and nrSSU were found to be comparatively easy to sequence and provide a strong phylogenetic signal. A STACEY species tree of these three regions revealed that Polyozellus makes Pseudotomentella paraphyletic. As a result, nearly all species currently placed in Pseudotomentella were recombined to Polyozellus. Pseudotomentella larsenii was found to be closer to Tomentellopsis than Polyozellus, but its placement needs further study and it was hence not recombined.
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Affiliation(s)
- S Svantesson
- Department of Biological and Environmental Sciences, University of Gothenburg, Box 463, 405 30 Göteborg, Sweden.,Gothenburg Global Biodiversity Centre, Box 461, 405 30 Göteborg, Sweden.,Royal Botanic Gardens Victoria, Birdwood Ave, Melbourne, Victoria 3004, Australia
| | - U Kõljalg
- Natural History Museum, University of Tartu, 14a Ravila, 50411 Tartu, Estonia.,Institute of Ecology and Earth Sciences, University of Tartu, 14a Ravila, 50411 Tartu, Estonia
| | - C Wurzbacher
- Department of Biological and Environmental Sciences, University of Gothenburg, Box 463, 405 30 Göteborg, Sweden.,Gothenburg Global Biodiversity Centre, Box 461, 405 30 Göteborg, Sweden.,Chair of Urban Water Systems Engineering, Technical University of Munich, Am Coulombwall 3, 85748 Garching, Germany
| | - I Saar
- Institute of Ecology and Earth Sciences, University of Tartu, 14a Ravila, 50411 Tartu, Estonia
| | - K-H Larsson
- Gothenburg Global Biodiversity Centre, Box 461, 405 30 Göteborg, Sweden.,Natural History Museum, University of Oslo, P.O. Box 1172, Blindern, 0318 Oslo, Norway
| | - E Larsson
- Department of Biological and Environmental Sciences, University of Gothenburg, Box 463, 405 30 Göteborg, Sweden.,Gothenburg Global Biodiversity Centre, Box 461, 405 30 Göteborg, Sweden
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47
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Jiao X, Flouri T, Yang Z. Multispecies coalescent and its applications to infer species phylogenies and cross-species gene flow. Natl Sci Rev 2022; 8:nwab127. [PMID: 34987842 PMCID: PMC8692950 DOI: 10.1093/nsr/nwab127] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 07/10/2021] [Accepted: 07/11/2021] [Indexed: 02/06/2023] Open
Abstract
Multispecies coalescent (MSC) is the extension of the single-population coalescent model to multiple species. It integrates the phylogenetic process of species divergences and the population genetic process of coalescent, and provides a powerful framework for a number of inference problems using genomic sequence data from multiple species, including estimation of species divergence times and population sizes, estimation of species trees accommodating discordant gene trees, inference of cross-species gene flow and species delimitation. In this review, we introduce the major features of the MSC model, discuss full-likelihood and heuristic methods of species tree estimation and summarize recent methodological advances in inference of cross-species gene flow. We discuss the statistical and computational challenges in the field and research directions where breakthroughs may be likely in the next few years.
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Affiliation(s)
- Xiyun Jiao
- Department of Genetics, Evolution and Environment, University College London, London WC1E 6BT, UK
| | - Tomáš Flouri
- Department of Genetics, Evolution and Environment, University College London, London WC1E 6BT, UK
| | - Ziheng Yang
- Department of Genetics, Evolution and Environment, University College London, London WC1E 6BT, UK
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48
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Zamora J, Savchenko A, González-Cruz Á, Prieto-García F, Olariaga I, Ekman S. Dendrodacrys: a new genus for species with branched hyphidia in Dacrymyces s.l., with the description of four new species. Fungal Syst Evol 2022; 9:27-42. [PMID: 35978985 PMCID: PMC9355100 DOI: 10.3114/fuse.2022.09.04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 02/18/2022] [Indexed: 12/04/2022] Open
Abstract
A new genus named Dendrodacrys is proposed for a monophyletic group in Dacrymycetaceae, containing species with pulvinate to depressed basidiocarps, distinctly branched hymenial hyphidia, and up to 3-septate mature basidiospores. Four taxa in this group, occurring in Europe, are proposed as new species, viz. De. ciprense, De. concrescens, De. ellipsosporum, and De. oblongisporum, based both on morphological and DNA data (nrDNA, RPB1, RPB2, TEF-1α, 12S). These new species are all described in detail, illustrated, and compared with other published taxa that with which they can be confounded. The new combination De. paraphysatum is proposed after revising the type material of Dacrymyces paraphysatus, but other combinations or potentially new non-European species descriptions are postponed pending further studies of additional specimens. Citation: Zamora JC, Savchenko A, González-Cruz Á, Prieto-García F, Olariaga I, Ekman S (2022). Dendrodacrys: a new genus for species with branched hyphidia in Dacrymyces s.l., with the description of four new species. Fungal Systematics and Evolution9: 27–42. doi: 10.3114/fuse.2022.09.04
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Affiliation(s)
- J.C. Zamora
- Museum of Evolution, Uppsala University, Norbyvägen 16, 752 36 Uppsala, Sweden
- Conservatoire et Jardin Botaniques de la Ville de Genève, Chemin de l’Impératrice 1, 1292 Chambésy-Genève, Switzerland
| | - A. Savchenko
- Institute of Ecology & Earth Sciences, University of Tartu, 51014 Tartu, Estonia
| | | | | | - I. Olariaga
- Departamento de Biología y Geología, Física y Química Inorgánica, Universidad Rey Juan Carlos, Tulipán s/n, 28933 Móstoles, Madrid, Spain
| | - S. Ekman
- Museum of Evolution, Uppsala University, Norbyvägen 16, 752 36 Uppsala, Sweden
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49
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Douglas J, Jiménez-Silva CL, Bouckaert R. OUP accepted manuscript. Syst Biol 2022; 71:901-916. [PMID: 35176772 PMCID: PMC9248896 DOI: 10.1093/sysbio/syac010] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Revised: 02/01/2022] [Accepted: 02/08/2022] [Indexed: 11/16/2022] Open
Abstract
As genomic sequence data become increasingly available, inferring the phylogeny of the
species as that of concatenated genomic data can be enticing. However, this approach makes
for a biased estimator of branch lengths and substitution rates and an inconsistent
estimator of tree topology. Bayesian multispecies coalescent (MSC) methods address these
issues. This is achieved by constraining a set of gene trees within a species tree and
jointly inferring both under a Bayesian framework. However, this approach comes at the
cost of increased computational demand. Here, we introduce StarBeast3—a software package
for efficient Bayesian inference under the MSC model via Markov chain Monte Carlo. We gain
efficiency by introducing cutting-edge proposal kernels and adaptive operators, and
StarBeast3 is particularly efficient when a relaxed clock model is applied. Furthermore,
gene-tree inference is parallelized, allowing the software to scale with the size of the
problem. We validated our software and benchmarked its performance using three real and
two synthetic data sets. Our results indicate that StarBeast3 is up to one-and-a-half
orders of magnitude faster than StarBeast2, and therefore more than two orders faster than
*BEAST, depending on the data set and on the parameter, and can achieve convergence on
large data sets with hundreds of genes. StarBeast3 is open-source and is easy to set up
with a friendly graphical user interface. [Adaptive; Bayesian inference; BEAST 2;
effective population sizes; high performance; multispecies coalescent; parallelization;
phylogenetics.]
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Affiliation(s)
- Jordan Douglas
- School of Computer Science, University of Auckland, 9 Symonds
Street Level 1 Student Commons, Auckland 1010, New Zealand
- Correspondence to be sent to: School of Computer Science,
University of Auckland, 9 Symonds Street Level 1 Student Commons, Auckland 1010, New
Zealand; E-mail:
| | - Cinthy L Jiménez-Silva
- School of Computer Science, University of Auckland, 9 Symonds
Street Level 1 Student Commons, Auckland 1010, New Zealand
| | - Remco Bouckaert
- School of Computer Science, University of Auckland, 9 Symonds
Street Level 1 Student Commons, Auckland 1010, New Zealand
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50
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Anjos MDS, Jardim de Queiroz L, Penido IDS, Bitencourt JDA, Barreto SB, Sarmento‐Soares LM, Batalha‐Filho H, Affonso PRADM. A taxonomically complex catfish group from an underrepresented geographic area: Systematics and species limits in
Hypostomus
Lacépède, 1803 (Siluriformes, Loricariidae) from Eastern South America. J ZOOL SYST EVOL RES 2021. [DOI: 10.1111/jzs.12572] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Luiz Jardim de Queiroz
- Department of Fish Ecology and Evolution Swiss Federal Institute of Aquatic Science and Technology (Eawag) Dübendorf Switzerland
| | - Iago de Souza Penido
- Programa de Pós‐Graduação em Biologia Comparada Universidade Estadual de Maringá Maringá Brazil
| | | | - Silvia Britto Barreto
- National Institute of Science and Technology in Interdisciplinary and Transdisciplinary Studies in Ecology and Evolution (INCT INTREE) Instituto de Biologia Universidade Federal da Bahia Salvador Brazil
| | | | - Henrique Batalha‐Filho
- Instituto de Biologia Universidade Federal da Bahia Salvador Brazil
- National Institute of Science and Technology in Interdisciplinary and Transdisciplinary Studies in Ecology and Evolution (INCT INTREE) Instituto de Biologia Universidade Federal da Bahia Salvador Brazil
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