1
|
Böhnert T, Luebert F, Merklinger FF, Harpke D, Stoll A, Schneider JV, Blattner FR, Quandt D, Weigend M. Plant migration under long-lasting hyperaridity - phylogenomics unravels recent biogeographic history in one of the oldest deserts on Earth. THE NEW PHYTOLOGIST 2022; 234:1863-1875. [PMID: 35274308 DOI: 10.1111/nph.18082] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 02/28/2022] [Indexed: 06/14/2023]
Abstract
The post-Miocene climatic histories of arid environments have been identified as key drivers of dispersal and diversification. Here, we investigate how climatic history correlates with the historical biogeography of the Atacama Desert genus Cristaria (Malvaceae). We analyze phylogenetic relationships and historical biogeography by using next-generation sequencing (NGS), molecular clock dating, Dispersal Extinction Cladogenesis and Bayesian sampling approaches. We employ a novel way to identify biogeographically meaningful regions as well as a rarely utilized program permitting the use of dozens of ancestral areas. Partial incongruence between the established taxonomy and our phylogenetic data argue for a complex historical biogeography with repeated introgression and incomplete lineage sorting. Cristaria originated in the central southern part of the Atacama Desert, from there the genus colonized other areas from the late Miocene onwards. The more recently diverged lineages appear to have colonized different habitats in the Atacama Desert during pluvial phases of the Pliocene and early Pleistocene. We show that NGS combined with near-comprehensive sampling can provide an unprecedented degree of phylogenetic resolution and help to correlate the historical biogeography of plant communities with cycles of arid and pluvial phases.
Collapse
Affiliation(s)
- Tim Böhnert
- Nees Institute for Biodiversity of Plants, University of Bonn, 53115, Bonn, Germany
| | - Federico Luebert
- Nees Institute for Biodiversity of Plants, University of Bonn, 53115, Bonn, Germany
- Facultad de Ciencias Agronómicas and Departamento de Silvicultura y Conservación de la Naturaleza, Universidad de Chile, 8820000, Santiago, Chile
| | - Felix F Merklinger
- Nees Institute for Biodiversity of Plants, University of Bonn, 53115, Bonn, Germany
- Sukkulenten-Sammlung Zürich/Grün Stadt Zürich, 8002, Zürich, Switzerland
| | - Dörte Harpke
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), 06466, Gatersleben, Germany
| | - Alexandra Stoll
- Centro de Estudios Avanzados en Zonas Áridas Ceaza, 1720256, La Serena, Chile
- Instituto de Investigación Multidisciplinar en Ciencia y Tecnología, Universidad de la Serena, 1720170, La Serena, Chile
| | - Julio V Schneider
- Botany and Molecular Evolution and Entomology III, Senckenberg Research Institute and Natural History Museum, Frankfurt, 60325, Germany
| | - Frank R Blattner
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), 06466, Gatersleben, Germany
| | - Dietmar Quandt
- Nees Institute for Biodiversity of Plants, University of Bonn, 53115, Bonn, Germany
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), 06466, Gatersleben, Germany
| | - Maximilian Weigend
- Nees Institute for Biodiversity of Plants, University of Bonn, 53115, Bonn, Germany
| |
Collapse
|
2
|
Zhang GQ, Chen GZ, Chen LJ, Zhai JW, Huang J, Wu XY, Li MH, Peng DH, Rao WH, Liu ZJ, Lan SR. Phylogenetic incongruence in Cymbidium orchids. PLANT DIVERSITY 2021; 43:452-461. [PMID: 35024514 PMCID: PMC8720702 DOI: 10.1016/j.pld.2021.08.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 08/11/2021] [Accepted: 08/13/2021] [Indexed: 06/14/2023]
Abstract
Cymbidium, which includes approximately 80 species, is one of the most ornamental and cultivated orchid genera. However, a lack of markers and sparse sampling have posed great challenges to resolving the phylogenetic relationships within the genus. In the present study, we reconstructed the phylogenetic relationships by utilizing one nuclear DNA (nrITS) and seven plastid genes (rbcL, trnS, trnG, matK, trnL, psbA, and atpI) from 70 species (varieties) in Cymbidium. We also examined the occurrence of phylogenetic conflict between nuclear (nrITS) and plastid loci and investigated how phylogenetic conflict bears on taxonomic classification within the genus. We found that phylogenetic conflict and low support values may be explained by hybridization and a lack of informative characteristics. Our results do not support previous classification of the subgenera and sections within Cymbidium. Discordance between gene trees and network analysis indicate that reticulate evolution occurred in the genus Cymbidium. Overall, our study indicates that Cymbidium has undergone a complex evolution.
Collapse
Affiliation(s)
- Guo-Qiang Zhang
- Forestry College of Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Shenzhen Key Laboratory for Orchid Conservation and Utilization, The National Orchid Conservation Center of China and the Orchid Conservation and Research Center of Shenzhen, Shenzhen, 518114, China
| | - Gui-Zhen Chen
- Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization at College of Landscape Architecture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Shenzhen Key Laboratory for Orchid Conservation and Utilization, The National Orchid Conservation Center of China and the Orchid Conservation and Research Center of Shenzhen, Shenzhen, 518114, China
| | - Li-Jun Chen
- Shenzhen Key Laboratory for Orchid Conservation and Utilization, The National Orchid Conservation Center of China and the Orchid Conservation and Research Center of Shenzhen, Shenzhen, 518114, China
| | - Jun-Wen Zhai
- Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization at College of Landscape Architecture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Jie Huang
- Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization at College of Landscape Architecture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Shenzhen Key Laboratory for Orchid Conservation and Utilization, The National Orchid Conservation Center of China and the Orchid Conservation and Research Center of Shenzhen, Shenzhen, 518114, China
| | - Xin-Yi Wu
- Shenzhen Key Laboratory for Orchid Conservation and Utilization, The National Orchid Conservation Center of China and the Orchid Conservation and Research Center of Shenzhen, Shenzhen, 518114, China
| | - Ming-He Li
- Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization at College of Landscape Architecture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Dong-Hui Peng
- Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization at College of Landscape Architecture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Wen-Hui Rao
- Shenzhen Key Laboratory for Orchid Conservation and Utilization, The National Orchid Conservation Center of China and the Orchid Conservation and Research Center of Shenzhen, Shenzhen, 518114, China
| | - Zhong-Jian Liu
- Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization at College of Landscape Architecture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Si-Ren Lan
- Forestry College of Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization at College of Landscape Architecture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| |
Collapse
|
3
|
Volis S, Fogel K, Tu T, Sun H, Zaretsky M. Evolutionary history and biogeography of Mandragora L. (Solanaceae). Mol Phylogenet Evol 2018; 129:85-95. [DOI: 10.1016/j.ympev.2018.08.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 08/11/2018] [Accepted: 08/23/2018] [Indexed: 10/28/2022]
|
4
|
Zhao Z, Hu J, Chen S, Luo Z, Luo D, Wen J, Tu T, Zhang D. Evolution of CYCLOIDEA-like genes in Fabales: Insights into duplication patterns and the control of floral symmetry. Mol Phylogenet Evol 2018; 132:81-89. [PMID: 30508631 DOI: 10.1016/j.ympev.2018.11.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 11/08/2018] [Accepted: 11/15/2018] [Indexed: 11/29/2022]
Abstract
Cycloidea-like (CYC-like) genes are the key regulatory factors in the development of flower symmetry. Duplication and/or reduction of CYC-like genes have occurred several times in various angiosperm groups and are hypothesized to be correlated with the evolution of flower symmetry, which in turn has contributed to the evolutionary success of these groups. However, less is known about the evolutionary scenario of CYC-like genes in the whole Fabales, which contains four families with either symmetric or actinomorphic flowers. Here we investigated the evolution of CYC-like genes in all the four families of Fabales and recovered one to nine CYC-like genes (CYC1, CYC2, and CYC3) depending on which lineages, but the CYC3 genes were most likely lost in the ancestor of Leguminosae. Phylogenetic analysis suggested that the CYC-like genes could have undergone multiple duplications and losses in different plant lineages and formed distinct paralogous/orthologous clades. The ancestor of the Papilionoideae and Caesalpinioideae may possess two paralogs of CYC1 genes but one of them was subsequently lost in Papilionoideae and was retained only in several species of Caesalpinioideae. CYC2 genes were more frequently duplicated in Papilionoideae than in other legumes. We propose that the diversification patterns of both CYC1 and CYC2 genes are not related to the floral symmetry in non-papilionoid Fabales groups, however, gene duplication and functional divergence of CYC2 are essential for the floral zygomorphy of Papilionoideae. This is the first systematic analysis of the CYC-like genes in Fabales and could form the basis for further study of molecular mechanisms controlling floral symmetry in non-model plants of Fabales.
Collapse
Affiliation(s)
- Zhongtao Zhao
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
| | - Jin Hu
- Guangdong Eco-engineering Polytechnic, Guangzhou 510520, China
| | - Shi Chen
- Beneficial Insects Institute, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Zhonglai Luo
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
| | - Da Luo
- Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081, China
| | - Jun Wen
- Department of Botany, National Museum of Natural History, Smithsonian Institution, Washington, DC, USA
| | - Tieyao Tu
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China.
| | - Dianxiang Zhang
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
| |
Collapse
|
5
|
Evolution of sexual systems and growth habit in Mussaenda (Rubiaceae): Insights into the evolutionary pathways of dioecy. Mol Phylogenet Evol 2018; 123:113-122. [PMID: 29454889 DOI: 10.1016/j.ympev.2018.02.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 02/12/2018] [Accepted: 02/14/2018] [Indexed: 01/06/2023]
Abstract
Dioecy is a rare sexual system that is thought to represent an "evolutionary dead end". While many studies have addressed the evolution of dioecy and/or its relationship with the evolution of the woody habit, few have explored the relationship between dioecy and climbing habit, and their effects on diversification rates. Here, we study the evolution of sexual systems and growth habit in Mussaenda (Rubiaceae) using a robust phylogeny of the genus based on eight plastid regions and a broad sampling of taxa (92 of the 132 species were sampled). A time-calibrated tree was constructed to estimate diversification rates in different clades and its correlates with focal characters. More specifically, we assess evolutionary correlations between dioecy and climbing habit and their respective influences on diversification rates. Ancestral character state reconstructions revealed that distyly is the most likely ancestral state in Mussaenda. Distyly has subsequently given rise to dioecy, short-styled floral monomorphism, and long-styled floral monomorphism. Dioecy has evolved independently at least four times from distyly, and has reversed to homostylous hermaphroditism at least twice, which does not support the "evolutionary dead end" hypothesis. A significant correlation between the evolution of dioecy and climbing growth form was found in Mussaenda. It is possible that a strong association between high net diversification rates and dioecy may exist in Mussaenda, but no association was found with climbing habit.
Collapse
|
6
|
|
7
|
Sanchez-Puerta MV, Abbona CC. The chloroplast genome of Hyoscyamus niger and a phylogenetic study of the tribe Hyoscyameae (Solanaceae). PLoS One 2014; 9:e98353. [PMID: 24851862 PMCID: PMC4031233 DOI: 10.1371/journal.pone.0098353] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Accepted: 05/01/2014] [Indexed: 12/04/2022] Open
Abstract
The tribe Hyoscyameae (Solanaceae) is restricted to Eurasia and includes the genera Archihyoscyamus, Anisodus, Atropa, Atropanthe, Hyoscyamus, Physochlaina, Przewalskia and Scopolia. Even though the monophyly of Hyoscyameae is strongly supported, the relationships of the taxa within the tribe remain unclear. Chloroplast markers have been widely used to elucidate plant relationships at low taxonomic levels. Identification of variable chloroplast intergenic regions has been developed based on comparative genomics of chloroplast genomes, but these regions have a narrow phylogenetic utility. In this study, we present the chloroplast genome sequence of Hyoscyamus niger and make comparisons to other solanaceous plastid genomes in terms of gene order, gene and intron content, editing sites, origins of replication, repeats, and hypothetical open reading frames. We developed and sequenced three variable plastid markers from eight species to elucidate relationships within the tribe Hyoscyameae. The presence of a horizontally transferred intron in the mitochondrial cox1 gene of some species of the tribe is considered here a likely synapomorphy uniting five genera of the Hyoscyameae. Alternatively, the cox1 intron could be a homoplasious character acquired twice within the tribe. A homoplasious inversion in the intergenic plastid spacer trnC-psbM was recognized as a source of bias and removed from the data set used in the phylogenetic analyses. Almost 12 kb of plastid sequence data were not sufficient to completely resolve relationships among genera of Hyoscyameae but some clades were identified. Two alternative hypotheses of the evolution of the genera within the tribe are proposed.
Collapse
Affiliation(s)
- M. Virginia Sanchez-Puerta
- Facultad de Ciencias Exactas y Naturales, IBAM-CONICET and Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo, Chacras de Coria, Mendoza, Argentina
- * E-mail:
| | - Cinthia Carolina Abbona
- IBAM-CONICET and Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo, Chacras de Coria, Mendoza, Argentina
| |
Collapse
|
8
|
Särkinen T, Bohs L, Olmstead RG, Knapp S. A phylogenetic framework for evolutionary study of the nightshades (Solanaceae): a dated 1000-tip tree. BMC Evol Biol 2013; 13:214. [PMID: 24283922 PMCID: PMC3850475 DOI: 10.1186/1471-2148-13-214] [Citation(s) in RCA: 271] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2013] [Accepted: 09/16/2013] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND The Solanaceae is a plant family of great economic importance. Despite a wealth of phylogenetic work on individual clades and a deep knowledge of particular cultivated species such as tomato and potato, a robust evolutionary framework with a dated molecular phylogeny for the family is still lacking. Here we investigate molecular divergence times for Solanaceae using a densely-sampled species-level phylogeny. We also review the fossil record of the family to derive robust calibration points, and estimate a chronogram using an uncorrelated relaxed molecular clock. RESULTS Our densely-sampled phylogeny shows strong support for all previously identified clades of Solanaceae and strongly supported relationships between the major clades, particularly within Solanum. The Tomato clade is shown to be sister to section Petota, and the Regmandra clade is the first branching member of the Potato clade. The minimum age estimates for major splits within the family provided here correspond well with results from previous studies, indicating splits between tomato and potato around 8 Million years ago (Ma) with a 95% highest posterior density (HPD) 7-10 Ma, Solanum and Capsicum c. 19 Ma (95% HPD 17-21), and Solanum and Nicotiana c. 24 Ma (95% HPD 23-26). CONCLUSIONS Our large time-calibrated phylogeny provides a significant step towards completing a fully sampled species-level phylogeny for Solanaceae, and provides age estimates for the whole family. The chronogram now includes 40% of known species and all but two monotypic genera, and is one of the best sampled angiosperm family phylogenies both in terms of taxon sampling and resolution published thus far. The increased resolution in the chronogram combined with the large increase in species sampling will provide much needed data for the examination of many biological questions using Solanaceae as a model system.
Collapse
Affiliation(s)
- Tiina Särkinen
- Department of Life Sciences, Natural History Museum, Cromwell Road, London SW7 5BD, UK
- Royal Botanic Garden Edinburgh, 20A Inverleith Row, Edinburgh EH3 5LR, UK
| | - Lynn Bohs
- Department of Biology, University of Utah, 257 S 1400 E, Salt Lake City, UT 84112, USA
| | | | - Sandra Knapp
- Department of Life Sciences, Natural History Museum, Cromwell Road, London SW7 5BD, UK
| |
Collapse
|
9
|
Salmaki Y, Zarre S, Ryding O, Lindqvist C, Bräuchler C, Heubl G, Barber J, Bendiksby M. Molecular phylogeny of tribe Stachydeae (Lamiaceae subfamily Lamioideae). Mol Phylogenet Evol 2013; 69:535-51. [PMID: 23916621 DOI: 10.1016/j.ympev.2013.07.024] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2013] [Revised: 07/20/2013] [Accepted: 07/23/2013] [Indexed: 11/26/2022]
Abstract
Although tribe Stachydeae (Lamiaceae) is considered monophyletic, relationships within the tribe are still poorly understood. The complexity of Stachydeae includes paraphyletic genera, considerable morphological plasticity, a range of ploidy levels, and presumably frequent natural hybridization. We performed parsimony and Bayesian phylogenetic analyses of nuclear (ribosomal ITS) and plastid (trnL intron, trnL-trnF spacer, rps16 intron) DNA sequence data from a taxonomically and geographically broad sampling of the tribe to identify major evolutionary lineages and to test taxonomic hypotheses within this largest of all lamioid tribes. We included 143 accessions corresponding to 121 species, representing both Old and New World species, and all 12 recognized genera of tribe Stachydeae. Both nuclear and plastid data corroborate monophyly of the tribe, with Melittis as sister to all remaining Stachydeae. For the latter well-supported clade, we suggest the phylogenetic name Eurystachys. Within Eurystachys, although monophyly is supported by both nuclear and plastid data for several named and unnamed groups, the majority of recognized taxa appear to be para- or polyphyletic. The taxon compositions of most subclades are congruent between the plastid and nuclear tree topologies, whereas their relative phylogenetic placements are often not. This level of plastid-nuclear incongruence suggests considerable impact of hybridization in the evolution of Stachydeae.
Collapse
Affiliation(s)
- Yasaman Salmaki
- Center of Excellence in Phylogeny of Living Organisms, Department of Plant Science, College of Science, University of Tehran, PO Box 14155-6455, Tehran, Iran; Biodiversity Research - Systematic Botany, Department of Biology I, Ludwig-Maximilians Universität München, Menzinger Str. 67, D-80638 München, Germany.
| | | | | | | | | | | | | | | |
Collapse
|
10
|
Evolutionary lag times and recent origin of the biota of an ancient desert (Atacama-Sechura). Proc Natl Acad Sci U S A 2013; 110:11469-74. [PMID: 23798420 DOI: 10.1073/pnas.1308721110] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The assembly of regional biotas and organismal responses to anthropogenic climate change both depend on the capacity of organisms to adapt to novel ecological conditions. Here we demonstrate the concept of evolutionary lag time, the time between when a climatic regime or habitat develops in a region and when it is colonized by a given clade. We analyzed the time of colonization of four clades (three plant genera and one lizard genus) into the Atacama-Sechura Desert of South America, one of Earth's driest and oldest deserts. We reconstructed time-calibrated phylogenies for each clade and analyzed the timing of shifts in climatic distributions and biogeography and compared these estimates to independent geological estimates of the time of origin of these deserts. Chaetanthera and Malesherbia (plants) and Liolaemus (animal) invaded arid regions of the Atacama-Sechura Desert in the last 10 million years, some 20 million years after the initial onset of aridity in the region. There are also major lag times between when these clades colonized the region and when they invaded arid habitats within the region (typically 4-14 million years). Similarly, hyperarid climates developed ∼8 million years ago, but the most diverse plant clade in these habitats (Nolana) only colonized them ∼2 million years ago. Similar evolutionary lag times may occur in other organisms and habitats, but these results are important in suggesting that many lineages may require very long time scales to adapt to modern desertification and climatic change.
Collapse
|
11
|
Zimmer EA, Wen J. Reprint of: using nuclear gene data for plant phylogenetics: progress and prospects. Mol Phylogenet Evol 2013; 66:539-50. [PMID: 23375140 DOI: 10.1016/j.ympev.2013.01.005] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2011] [Revised: 06/14/2012] [Accepted: 07/16/2012] [Indexed: 12/25/2022]
Abstract
The paper reviews the current state of low and single copy nuclear markers that have been applied successfully in plant phylogenetics to date, and discusses case studies highlighting the potential of massively parallel high throughput or next-generation sequencing (NGS) approaches for molecular phylogenetic and evolutionary investigations. The current state, prospects and challenges of specific single- or low-copy plant nuclear markers as well as phylogenomic case studies are presented and evaluated.
Collapse
Affiliation(s)
- Elizabeth A Zimmer
- Department of Botany, National Museum of Natural History, MRC 166, Smithsonian Institution, Washington, DC 20013-7012, USA.
| | | |
Collapse
|
12
|
Zimmer EA, Wen J. Using nuclear gene data for plant phylogenetics: Progress and prospects. Mol Phylogenet Evol 2012; 65:774-85. [DOI: 10.1016/j.ympev.2012.07.015] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2011] [Revised: 06/14/2012] [Accepted: 07/16/2012] [Indexed: 10/28/2022]
|
13
|
Jewell C, Papineau AD, Freyre R, Moyle LC. Patterns of reproductive isolation in Nolana (Chilean bellflower). Evolution 2012; 66:2628-36. [PMID: 22834759 DOI: 10.1111/j.1558-5646.2012.01607.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We examined reproductive isolating barriers at four postmating stages among 11 species from the morphologically diverse genus Nolana (Solanaceae). At least one stage was positively correlated with both genetic and geographic distance between species. Postzygotic isolation was generally stronger and faster evolving than postmating prezygotic isolation. In addition, there was no evidence for mechanical isolation, or for reproductive character displacement in floral traits that can influence pollinator isolation. In general, among the potential isolating stages examined here, postzygotic barriers appear to be more effective contributors to reducing gene flow, including between sympatric species.
Collapse
Affiliation(s)
- Cathleen Jewell
- Department of Biology, Indiana University, Bloomington, Indiana 47408, USA
| | | | | | | |
Collapse
|
14
|
Zhang YX, Zeng CX, Li DZ. Complex evolution in Arundinarieae (Poaceae: Bambusoideae): incongruence between plastid and nuclear GBSSI gene phylogenies. Mol Phylogenet Evol 2012; 63:777-97. [PMID: 22415014 DOI: 10.1016/j.ympev.2012.02.023] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2011] [Revised: 02/20/2012] [Accepted: 02/21/2012] [Indexed: 10/28/2022]
Abstract
The monophyly of tribe Arundinarieae (the temperate woody bamboos) has been unequivocally recovered in previous molecular phylogenetic studies. In a recent phylogenetic study, 10 major lineages in Arundinarieae were resolved based on eight non-coding plastid regions, which conflicted significantly with morphological classifications both at the subtribal and generic levels. Nevertheless, relationships among and within the 10 lineages remain unclear. In order to further unravel the evolutionary history of Arundinarieae, we used the nuclear GBSSI gene sequences along with those of eight plastid regions for phylogenetic reconstruction, with an emphasis on Chinese species. The results of the plastid analyses agreed with previous studies, whereas 13 primary clades revealed in the GBSSI phylogeny were better resolved at the generic level than the plastid phylogeny. Our analyses also revealed many inconsistencies between the plastid DNA and the nuclear GBSSI trees. These results implied that the nuclear genome and the plastid genome had different evolutionary trajectories. The patterns of incongruence suggested that lack of informative characters, incomplete lineage sorting, and/or hybridization (introgression) could be the causes. Seven putative hybrid species were hypothesized, four of which are discussed in detail on the basis of topological incongruence, chromosome numbers, morphology, and distribution patterns, and those taxa probably resulted from homoploid hybrid speciation. Overall, our study indicates that the tribe Arundinarieae has undergone a complex evolution.
Collapse
Affiliation(s)
- Yu-Xiao Zhang
- Key Laboratory of Biodiversity and Biogeography, Kunming Institute of Botany, Chinese Academy of Sciences, Heilongtan, Kunming, Yunnan 650201, PR China
| | | | | |
Collapse
|
15
|
Tu T, Volis S, Dillon MO, Sun H, Wen J. Dispersals of Hyoscyameae and Mandragoreae (Solanaceae) from the New World to Eurasia in the early Miocene and their biogeographic diversification within Eurasia. Mol Phylogenet Evol 2010; 57:1226-37. [PMID: 20858548 DOI: 10.1016/j.ympev.2010.09.007] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2010] [Revised: 09/08/2010] [Accepted: 09/09/2010] [Indexed: 10/19/2022]
Abstract
The cosmopolitan Solanaceae contains 21 tribes and has the greatest diversity in South America. Hyoscyameae and Mandragoreae are the only tribes of this family distributed exclusively in Eurasia with two centers of diversity: the Mediterranean-Turanian (MT) region and the Tibetan Plateau (TP). In this study, we examined the origins and biogeographical diversifications of the two tribes based on the phylogenetic framework and chronogram inferred from a combined data set of six plastid DNA regions (the atpB gene, the ndhF gene, the rps16-trnK intergenic spacer, the rbcL gene, the trnC-psbM region and the psbA-trnH intergenic spacer) with two fossil calibration points. Our data suggest that Hyoscyameae and Mandragoreae each forms a monophyletic group independently derived from different New World lineages in the early Miocene. Phylogenetic relationships within both tribes are generally well resolved. All genera of Hyoscyameae are found to be monophyletic and they diversified in middle to late Miocene. At nearly the same time, Mandragoreae split into two clades, corresponding to the MT region and the TP region, respectively. Both the phylogenetic relationships and the estimated ages of Hyoscyameae and Mandragoreae support two independent dispersal events of their ancestors from the New World into Eurasia. After their arrivals in Eurasia, the two tribes diversified primarily in the MT region and in the TP region via multiple biogeographic processes including vicariance, dispersal, recolonization or being preserved as relicts, from the mid Miocene to the late Quaternary.
Collapse
Affiliation(s)
- Tieyao Tu
- Key Laboratory of Biodiversity and Biogeography, Kunming Institute of Botany, Chinese Academic of Sciences, Kunming 650204, PR China
| | | | | | | | | |
Collapse
|
16
|
Wei XX, Yang ZY, Li Y, Wang XQ. Molecular phylogeny and biogeography of Pseudotsuga (Pinaceae): Insights into the floristic relationship between Taiwan and its adjacent areas. Mol Phylogenet Evol 2010; 55:776-85. [DOI: 10.1016/j.ympev.2010.03.007] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2009] [Revised: 02/25/2010] [Accepted: 03/03/2010] [Indexed: 11/15/2022]
|