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Jing MD, Ding YH, Ма YT. Description of three new species of Callyntrura (Japonphysa) (Collembola, Entomobryidae) from China with the aid of DNA barcoding. Zookeys 2023; 1187:237-260. [PMID: 38161716 PMCID: PMC10756065 DOI: 10.3897/zookeys.1187.109608] [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: 07/15/2023] [Accepted: 11/29/2023] [Indexed: 01/03/2024] Open
Abstract
Callyntrura(s.l.) Börner, 1906 is the largest genus of the subfamily Salininae and contains 11 subgenera and 98 species from all over the world (mainly Asia), with eight species recorded from China. In the present paper, three new species of Callyntrura(s.l.) are described from China: C. (Japonphysa) xinjianensissp. nov.; C. (J.) tongguensissp. nov. and C. (J.) raoisp. nov. Their differences in colour pattern, chaetotaxy and other characters are slight, however distances of COI mtDNA support their validation as three new distinct species. A key to the Chinese Callyntrura(s.l.) is provided.
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Affiliation(s)
- Mei-Dong Jing
- School of Life Sciences, Nantong University, Nantong, Jiangsu 226000, ChinaNantong UniversityNantongChina
| | - Yin-Huan Ding
- Department of Agronomy and Horticulture, Jiangsu Vocational College of Agriculture and Forestry, Jurong, Jiangsu 212400, ChinaJiangsu Vocational College of Agriculture and ForestryJurongChina
| | - Yi-Tong Ма
- School of Life Sciences, Nantong University, Nantong, Jiangsu 226000, ChinaNantong UniversityNantongChina
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Luan YX, Cui Y, Chen WJ, Jin JF, Liu AM, Huang CW, Potapov M, Bu Y, Zhan S, Zhang F, Li S. High-quality genomes reveal significant genetic divergence and cryptic speciation in the model organism Folsomia candida (Collembola). Mol Ecol Resour 2022; 23:273-293. [PMID: 35962787 PMCID: PMC10087712 DOI: 10.1111/1755-0998.13699] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 08/08/2022] [Accepted: 08/09/2022] [Indexed: 12/01/2022]
Abstract
The collembolan Folsomia candida Willem, 1902, is widely distributed throughout the world and has been frequently used as a test organism in soil ecology and ecotoxicology studies. However, it is questioned as an ideal "standard" because of differences in reproductive modes and cryptic genetic diversity between strains from various geographical origins. In this study, we obtained two high-quality chromosome-level genomes of F. candida, for a parthenogenetic strain (named as FCDK, 219.08 Mb, 25,139 protein-coding genes) and a sexual strain (named as FCSH, 153.09 Mb, 21,609 protein-coding genes), reannotated the genome of the parthenogenetic strain reported by Faddeeva-Vakhrusheva et al. in 2017 (named as FCBL, 221.7 Mb, 25,980 protein-coding genes), and conducted comparative genomic analyses of three strains. High genome similarities between FCDK and FCBL on synteny, genome architecture, mitochondrial and nuclear gene sequences support they are conspecific. The seven chromosomes of FCDK are each 25-54% larger than the corresponding chromosomes of FCSH, showing obvious repetitive element expansions and large-scale inversions and translocations but no whole-genome duplication. The strain-specific genes, expanded gene families and genes in nonsyntenic chromosomal regions identified in FCDK are highly related to the broader environmental adaptation of parthenogenetic strains. In addition, FCDK has fewer strain-specific microRNAs than FCSH, and their mitochondrial and nuclear genes have diverged greatly. In conclusion, FCDK/FCBL and FCSH have accumulated independent genetic changes and evolved into distinct species since 10 Mya. Our work provides important genomic resources for studying the mechanisms of rapidly cryptic speciation and soil arthropod adaptation to soil ecosystems.
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Affiliation(s)
- Yun-Xia Luan
- Guangdong Provincial Key Laboratory of Insect Development Biology and Applied Technology, Institute of Insect Science and Technology, School of Life Sciences, South China Normal University, Guangzhou, China.,Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Yingying Cui
- Guangdong Provincial Key Laboratory of Insect Development Biology and Applied Technology, Institute of Insect Science and Technology, School of Life Sciences, South China Normal University, Guangzhou, China
| | | | - Jian-Feng Jin
- Department of Entomology, College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Ai-Min Liu
- Department of Pomology, College of Horticulture, South China Agricultural University, Guangzhou, China
| | - Cheng-Wang Huang
- CAS Key Laboratory of Insect Developmental and Evolutionary Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, China
| | | | - Yun Bu
- Natural History Research Center, Shanghai Natural History Museum, Shanghai Science & Technology Museum, Shanghai, China
| | - Shuai Zhan
- CAS Key Laboratory of Insect Developmental and Evolutionary Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Feng Zhang
- Department of Entomology, College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Sheng Li
- Guangdong Provincial Key Laboratory of Insect Development Biology and Applied Technology, Institute of Insect Science and Technology, School of Life Sciences, South China Normal University, Guangzhou, China.,Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China.,Guangmeiyuan R&D Center, Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, South China Normal University, Meizhou, China
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Ross GM, Berg MP, Salmon S, Nielsen UN. Phylogenies of traits and functions in soil invertebrate assemblages. AUSTRAL ECOL 2022. [DOI: 10.1111/aec.13153] [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)
- Giles M. Ross
- Hawkesbury Institute for the Environment Western Sydney University Locked Bag 1797 Penrith NSW 2751 Australia
| | - Matty P. Berg
- Department of Ecological Science Vrije Universiteit Amsterdam, De Boelelaan 1085 Amsterdam HV 1081 The Netherlands
- Community and Conservation Ecology Group, Groningen Institute for Evolutionary Life Sciences University of Groningen Nijenborgh 7 Groningen AG 9747 The Netherlands
| | - Sandrine Salmon
- Department of Living Adaptations UMR 7179 MECADEV, Muséum National d'Histoire Naturelle 1 Avenue du Petit Château, Brunoy Paris 91800 France
| | - Uffe N. Nielsen
- Hawkesbury Institute for the Environment Western Sydney University Locked Bag 1797 Penrith NSW 2751 Australia
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The Puzzling Falcomurus Mandal (Collembola, Orchesellidae, Heteromurinae): A Review. INSECTS 2021; 12:insects12070650. [PMID: 34357310 PMCID: PMC8305321 DOI: 10.3390/insects12070650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 06/22/2021] [Accepted: 06/24/2021] [Indexed: 11/17/2022]
Abstract
Falcomurus Mandal is currently a monotypic genus of Heteromurinae described from India in 2018. Its key characters are the first antennal segment subdivided, the second undivided and the third annulated; the first abdominal segment lacking macrochaetae; and the presence of a sinuous modified macrochaeta on the proximal dens. Some details of its morphology were recently put in doubt, and so its genus status and affinities remain uncertain. Here, we revise the genus based on the type material of Dicranocentrus litoreus Mari-Mutt, as well as provide the description of two new species from Australian archipelagos and a reinterpretation of the chaetotaxy of Falcomurus chilikaensis Mandal and D. halophilus Mari-Mutt. After our revision, Falcomurus shows a well-conserved chaetotaxy and overall morphology, which allowed us to provide an updated generic diagnosis. While the antennae morphology of Falcomurus resembles that of Dicranocentrus Schött, its dorsal sensillar and macrochaetotaxy suggest it is closely related to Heteromurus Wankel, as originally stated by Mandal. The main features useful to separate Falcomurus species are the head, mesothorax and fourth abdominal segment chaetotaxy. We also provide a key to its five species, a comparative table and notes on the affinities and distribution of Falcomurus.
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Bellini BC, Cipola NG, Siqueira OJR. A Survey of the Brazilian Dicranocentrus Schött (Collembola, Orchesellidae, Heteromurini) with the Description of a New Species and Notes on the Genus. INSECTS 2020; 11:insects11100709. [PMID: 33081410 PMCID: PMC7603039 DOI: 10.3390/insects11100709] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 09/24/2020] [Accepted: 09/27/2020] [Indexed: 06/11/2023]
Abstract
Dicranocentrus Schött is the most diverse and widespread taxon of Neotropical Orchesellidae. In Brazil, the genus is represented by 11 species found in humid forested areas of Atlantic and Amazon forests domains. Here we describe in detail Dicranocentrus abestado sp. nov. from Chapada Diamantina, Caatinga domain, Brazil. The new species belongs to the marias group sensu Mari-Mutt, due to the absence of most posterior macrochaetae on the dorsal head, and resembles other Neotropical species with 3, 2 and 2 central macrochaetae on abdominal segments I-III. However, the new species is unique especially by its reduced colour pattern combined with its empodial complex morphology. We compare Dicranocentrus abestado sp. nov. with 27 other taxa from the New and Old World, including all species with 3 macrochaetae on the first abdominal segment; provide notes and details on the morphology of the compared species plus identification keys to Brazilian and all species of the genus with similar abdominal chaetotaxy. We also discuss the current taxonomical knowledge on Brazilian Dicranocentrus and provide notes on its chaetotaxy and Heteromurinae systematics.
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Affiliation(s)
- Bruno C. Bellini
- Laboratório de Collembola, Departamento de Botânica e Zoologia, Centro de Biociências, Universidade Federal do Rio Grande do Norte—UFRN, BR 101, Lagoa Nova, Campus Universitário, Natal 59072-970, Brazil
| | - Nikolas G. Cipola
- Laboratório de Sistemática e Ecologia de Invertebrados do Solo, Instituto Nacional de Pesquisas da Amazônia—INPA, COBIO/Entomologia, Campus II, Petrópolis, Manaus 69067-375, Brazil;
| | - Orquianne J. R. Siqueira
- Laboratório de Collembola, Departamento de Botânica e Zoologia, Centro de Biociências, Universidade Federal do Rio Grande do Norte—UFRN, BR 101, Lagoa Nova, Campus Universitário, Natal 59072-970, Brazil
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Katz AD. Inferring Evolutionary Timescales without Independent Timing Information: An Assessment of "Universal" Insect Rates to Calibrate a Collembola (Hexapoda) Molecular Clock. Genes (Basel) 2020; 11:genes11101172. [PMID: 33036318 PMCID: PMC7600954 DOI: 10.3390/genes11101172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 10/02/2020] [Accepted: 10/04/2020] [Indexed: 01/04/2023] Open
Abstract
Previous estimates of nucleotide substitution rates are routinely applied as secondary or “universal” molecular clock calibrations for estimating evolutionary timescales in groups that lack independent timing information. A major limitation of this approach is that rates can vary considerably among taxonomic groups, but the assumption of rate constancy is rarely evaluated prior to using secondary rate calibrations. Here I evaluate whether an insect mitochondrial DNA clock is appropriate for estimating timescales in Collembola—a group of insect-like arthropods characterized by high levels of cryptic diversity. Relative rates of substitution in cytochrome oxidase subunit 1 (COI) were inferred via Bayesian analysis across a topologically constrained Hexapod phylogeny using a relaxed molecular clock model. Rates for Collembola did not differ significantly from the average rate or from the rates estimated for most other groups (25 of 30), suggesting that (1) their apparent cryptic diversity cannot be explained by accelerated rates of molecular evolution and (2) clocks calibrated using “universal” insect rates may be appropriate for estimating evolutionary timescales in this group. However, of the 31 groups investigated, 10 had rates that deviated significantly from the average (6 higher, 4 lower), underscoring the need for caution and careful consideration when applying secondary insect rate calibrations. Lastly, this study exemplifies a relatively simple approach for evaluating rate constancy within a taxonomic group to determine whether the use of secondary rates are appropriate for molecular clock calibrations.
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Affiliation(s)
- Aron D. Katz
- Engineer Research Development Center, 2902 Newmark Dr., Champaign, IL 61826, USA;
- Department of Entomology, University of Illinois at Urbana-Champaign, 320 Morrill Hall, 505 South Goodwin Ave., Urbana, IL 61801, USA
- Illinois Natural History Survey, Prairie Research Institute, University of Illinois at Urbana-Champaign, 1816 South Oak Street, Champaign, IL 61820, USA
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Genetic diversity of soil invertebrates corroborates timing estimates for past collapses of the West Antarctic Ice Sheet. Proc Natl Acad Sci U S A 2020; 117:22293-22302. [PMID: 32839321 PMCID: PMC7486705 DOI: 10.1073/pnas.2007925117] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Changes in the extent of ice sheets through evolutionary timescales have influenced the connectivity of soil invertebrate populations across the Antarctic landscape. We use genetic divergences to estimate isolation times for soil invertebrates along the Transantarctic Mountains. Four species of Collembola (Arthropoda) each showed genetically distinct populations at locations likely isolated for millions of years. Two further species were less genetically diverse although also range restricted. Our genetic data corroborate climate reconstructions and estimates of past warm periods of reduced ice and absent ice shelf in the Ross Sea region, during which time open seaways would have facilitated dispersal of Collembola, and possibly other taxa. During austral summer field seasons between 1999 and 2018, we sampled at 91 locations throughout southern Victoria Land and along the Transantarctic Mountains for six species of endemic microarthropods (Collembola), covering a latitudinal range from 76.0°S to 87.3°S. We assembled individual mitochondrial cytochrome c oxidase subunit 1 (COI) sequences (n = 866) and found high levels of sequence divergence at both small (<10 km) and large (>600 km) spatial scales for four of the six Collembola species. We applied molecular clock estimates and assessed genetic divergences relative to the timing of past glacial cycles, including collapses of the West Antarctic Ice Sheet (WAIS). We found that genetically distinct lineages within three species have likely been isolated for at least 5.54 My to 3.52 My, while the other three species diverged more recently (<2 My). We suggest that Collembola had greater dispersal opportunities under past warmer climates, via flotation along coastal margins. Similarly increased opportunities for dispersal may occur under contemporary climate warming scenarios, which could influence the genetic structure of extant populations. As Collembola are a living record of past landscape evolution within Antarctica, these findings provide biological evidence to support geological and glaciological estimates of historical WAIS dynamics over the last ca. 5 My.
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Parimuchová A, Žurovcová M, Papáč V, Kováč Ľ. Subterranean Deuteraphorura Absolon, 1901, (Hexapoda, Collembola) of the Western Carpathians - Troglomorphy at the northern distributional limit in Europe. PLoS One 2020; 15:e0226966. [PMID: 31940408 PMCID: PMC6961878 DOI: 10.1371/journal.pone.0226966] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 12/08/2019] [Indexed: 11/18/2022] Open
Abstract
An integrative approach employing molecular, morphological and geographical data were applied to species delimitation among Deuteraphorura congeners occupying caves of the Western Carpathian Mts. A new species of Deuteraphorura from the Western Carpathians is described. D. muranensis sp. nov. belongs among species with 4 pso at the hind margin of the head and possesses highly troglomorphic features. It is conspicuous with its distinctly elongated claws and long, hair-like body chaetae. The status of the new species was confirmed by DNA barcoding based on the mitochondrial COI marker. Populations of D. kratochvili (Nosek, 1963), the most widespread species, were studied in detail. Both ABGD and PTP analyses brought results congruent with geography, i.e. the molecular and geographic distance of the populations were positively correlated. However, some molecular separation based on pairwise distance and the number of substitutions was indicated within two of the studied populations. Despite the indistinct morphological differences, the tested populations were well isolated both geographically and genetically, which indicates that each studied population may represent a cryptic species. The troglomorphy of cave Collembola at the northernmost border of the distribution of cave-adapted species in the Europe is discussed. It is clear that the level of troglomorphy is closely associated with conditions of the microhabitat occupied by the individual subterranean species. The results of our study enhance the importance of the Western Carpathians regarding the diversity pattern of obligate cave species in Europe.
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Affiliation(s)
- Andrea Parimuchová
- Department of Zoology, Institute of Biology and Ecology, Faculty of Science, P.J. Šafárik University, Košice, Slovakia
- * E-mail:
| | - Martina Žurovcová
- Institute of Entomology, Biology Centre AS CR v.v.i., České Budějovice, Czech Republic
| | - Vladimír Papáč
- State Nature Conservancy of the Slovak Republic, Slovak Caves Administration, Cave Care Department, Rimavská Sobota, Slovakia
| | - Ľubomír Kováč
- Department of Zoology, Institute of Biology and Ecology, Faculty of Science, P.J. Šafárik University, Košice, Slovakia
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Lukić M, Delić T, Pavlek M, Deharveng L, Zagmajster M. Distribution pattern and radiation of the European subterranean genusVerhoeffiella(Collembola, Entomobryidae). ZOOL SCR 2019. [DOI: 10.1111/zsc.12392] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Marko Lukić
- Croatian Biospeleological Society Zagreb Croatia
- SubBioLab Department of Biology Biotechnical Faculty University of Ljubljana Ljubljana Slovenia
- Ruđer Bošković Institute Zagreb Croatia
| | - Teo Delić
- SubBioLab Department of Biology Biotechnical Faculty University of Ljubljana Ljubljana Slovenia
| | - Martina Pavlek
- Croatian Biospeleological Society Zagreb Croatia
- Ruđer Bošković Institute Zagreb Croatia
- Department of Evolutionary Biology, Ecology and Environmental Sciences & Biodiversity Research Institute Universitat de Barcelona Barcelona Spain
| | - Louis Deharveng
- Institut de Systématique, Evolution, Biodiversité ISYEB ‐ UMR 7205 ‐ CNRS MNHN, UPMC, EPHE, Museum national d'Histoire naturelle Sorbonne Universités Paris France
| | - Maja Zagmajster
- SubBioLab Department of Biology Biotechnical Faculty University of Ljubljana Ljubljana Slovenia
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