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Wang Y, Gou Y, Yuan R, Zou Q, Zhang X, Zheng T, Fei K, Shi R, Zhang M, Li Y, Gong Z, Luo C, Xiong Y, Shan D, Wei C, Shen L, Tang G, Li M, Zhu L, Li X, Jiang Y. A chromosome-level genome of Chenghua pig provides new insights into the domestication and local adaptation of pigs. Int J Biol Macromol 2024; 270:131796. [PMID: 38677688 DOI: 10.1016/j.ijbiomac.2024.131796] [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: 07/26/2023] [Revised: 03/24/2024] [Accepted: 04/04/2024] [Indexed: 04/29/2024]
Abstract
As a country with abundant genetic resources of pigs, the domestication history of pigs in China and the adaptive evolution of Chinese pig breeds at different latitudes have rarely been elucidated at the genome-wide level. To fill this gap, we first assembled a high-quality chromosome-level genome of the Chenghua pig and used it as a benchmark to analyse the genomes of 272 samples from three genera of three continents. The divergence of the three species belonging to three genera, Phacochoerus africanus, Potamochoerus porcus, and Sus scrofa, was assessed. The introgression of pig breeds redefined that the migration routes were basically from southern China to central and southwestern China, then spread to eastern China, arrived in northern China, and finally reached Europe. The domestication of pigs in China occurred ∼12,000 years ago, earlier than the available Chinese archaeological domestication evidence. In addition, FBN1 and NR6A1 were identified in our study as candidate genes related to extreme skin thickness differences in Eurasian pig breeds and adaptive evolution at different latitudes in Chinese pig breeds, respectively. Our study provides a new resource for the pig genomic pool and refines our understanding of pig genetic diversity, domestication, migration, and adaptive evolution at different latitudes.
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Affiliation(s)
- Yifei Wang
- Department of Zoology, College of Life Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, China
| | - Yuwei Gou
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Rong Yuan
- Chengdu Livestock and Poultry Genetic Resources Protection Center, Chengdu, Sichuan 610081, China
| | - Qin Zou
- Department of Zoology, College of Life Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, China
| | - Xukun Zhang
- Academy for Engineering and Technology, Fudan University, Shanghai 200433, China
| | - Ting Zheng
- Department of Zoology, College of Life Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, China
| | - Kaixin Fei
- Department of Zoology, College of Life Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, China
| | - Rui Shi
- Department of Zoology, College of Life Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, China
| | - Mei Zhang
- Department of Zoology, College of Life Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, China
| | - Yujing Li
- Department of Zoology, College of Life Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, China
| | - Zhengyin Gong
- Department of Zoology, College of Life Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, China
| | - Chenggang Luo
- Chengdu Livestock and Poultry Genetic Resources Protection Center, Chengdu, Sichuan 610081, China
| | - Ying Xiong
- Department of Zoology, College of Life Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, China
| | - Dai Shan
- BGI Genomics, BGI-Shenzhen, Shenzhen 518083, China
| | - Chenyang Wei
- BGI Genomics, BGI-Shenzhen, Shenzhen 518083, China
| | - Linyuan Shen
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Guoqing Tang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Mingzhou Li
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Li Zhu
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Xuewei Li
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Yanzhi Jiang
- Department of Zoology, College of Life Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, China.
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Gustiano R, Haryani GS, Aisyah S, Nur FM, Kartika GRA, Noegroho T, Arthana IW, Albasri H, Larashati S, Haryono H, Kusmini II, Yosmaniar Y, Syam AR, Taufik I, Setiadi E, Permana IGN. Ecophenotypic Variation of Midas Cichlid, Amphilophus citrinellus (Gunther, 1864), in Lake Batur, Bali, Indonesia. BRAZ J BIOL 2024; 84:e279429. [PMID: 38422298 DOI: 10.1590/1519-6984.279429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 01/23/2024] [Indexed: 03/02/2024] Open
Abstract
Cichlid fishes exhibit rapid adaptive radiations with significant diversification rates in response to ecological variability, i.e., ecological opportunity or geographical isolation. The discovery of a Midas cichlid species in Lake Batur, Indonesia's largest volcanic lake, first reported in 2013, could represent such adaptations. Midas cichlids can now be found in a range of habitats in Lake Batur and dominate the lake's fish population by up to 60%. This study aimed to identify the interaction between habitat, water quality, and Midas cichlid in Lake Batur, facilitating morphometric variances in the fish populations. The fish were captured at five locations in Lake Batur using fishing rods, community nets with mesh sizes of 2-3 inches, experimental gillnets with mesh sizes of 1 inch, and fish scoops in floating net cages during August and November 2022. There were 46 fish samples caught from the five stations, all photographed using a digital camera and later measured using the ZEN 2012 software. The fish measurement employed a truss morphometric method using 21 distinct morphometric body features. Canonical analysis was used to determine the distribution of characteristics, while discriminant analysis was used to examine the closeness of association. The measured water quality parameters included pH, DO, temperature, conductivity, and TDS for in-situ and TSS, TP, TN, and chlorophyll A for ex-situ. The findings revealed morphometric changes among Midas cichlid species in Lake Batur caused by habitat and water quality differences. The distinction can be detected in the anterior and posterior bodies (C1, B1, C3, C6, C5, B3 and B4). Temperature and aquatic plants, Azolla pinnata, may detect the station and shape of fish in Lake Batur. Body shape cannot be identified by chlorophyll A, TN, DO, and TDS. Future genetic research could answer why fish groups with varied body types coexist in the same location.
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Affiliation(s)
- R Gustiano
- National Research and Innovation Agency, Research Center for Biosystematics and Evolution, Museum Zoologicum Bogoriense, Cibinong, Indonesia
| | - G S Haryani
- National Research and Innovation Agency, Research Center for Limnology and Water Resources, Cibinong, Indonesia
| | - S Aisyah
- National Research and Innovation Agency, Research Center for Limnology and Water Resources, Cibinong, Indonesia
| | - F M Nur
- National Research and Innovation Agency, Research Center for Biosystematics and Evolution, Museum Zoologicum Bogoriense, Cibinong, Indonesia
| | - Gde R A Kartika
- Udayana University, Faculty of Marine Science and Fisheries, Bali, Indonesia
| | - T Noegroho
- National Research and Innovation Agency, Research Center for Fisheries, Jl. Raya Jakarta-Bogor, Cibinong, Indonesia
| | - I W Arthana
- Udayana University, Faculty of Marine Science and Fisheries, Bali, Indonesia
| | - H Albasri
- National Research and Innovation Agency, Research Center for Fisheries, Jl. Raya Jakarta-Bogor, Cibinong, Indonesia
| | - S Larashati
- National Research and Innovation Agency, Research Center for Limnology and Water Resources, Cibinong, Indonesia
| | - H Haryono
- National Research and Innovation Agency, Research Center for Biosystematics and Evolution, Museum Zoologicum Bogoriense, Cibinong, Indonesia
| | - I I Kusmini
- National Research and Innovation Agency, Research Center for Applied Zoology, Jl. Raya Jakarta-Bogor, Cibinong, Indonesia
| | - Y Yosmaniar
- National Research and Innovation Agency, Research Center for Marine and Land Bioindustry, North Lombok, West Nusa Tenggara, Indonesia
| | - A R Syam
- National Research and Innovation Agency, Research Center for Conservation of Marine and Inland Water Resources, Cibinong, Indonesia
| | - I Taufik
- National Research and Innovation Agency, Research Center for Fisheries, Jl. Raya Jakarta-Bogor, Cibinong, Indonesia
| | - E Setiadi
- National Research and Innovation Agency, Research Center for Fisheries, Jl. Raya Jakarta-Bogor, Cibinong, Indonesia
| | - I G N Permana
- National Research and Innovation Agency, Research Center for Fisheries, Jl. Raya Jakarta-Bogor, Cibinong, Indonesia
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3
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Alfieri JM, Hingoranee R, Athrey GN, Blackmon H. Domestication is associated with increased interspecific hybrid compatibility in landfowl (order: Galliformes). J Hered 2024; 115:1-10. [PMID: 37769441 PMCID: PMC10838130 DOI: 10.1093/jhered/esad059] [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: 05/16/2023] [Revised: 09/15/2023] [Accepted: 09/26/2023] [Indexed: 09/30/2023] Open
Abstract
Some species are able to hybridize despite being exceptionally diverged. The causes of this variation in accumulation of reproductive isolation remain poorly understood, and domestication as an impetus or hindrance to reproductive isolation remains to be characterized. In this study, we investigated the role of divergence time, domestication, and mismatches in morphology, habitat, and clutch size among hybridizing species on reproductive isolation in the bird order Galliformes. We compiled and analyzed hybridization occurrences from literature and recorded measures of postzygotic reproductive isolation. We used a text-mining approach leveraging a historical aviculture magazine to quantify the degree of domestication across species. We obtained divergence time, morphology, habitat, and clutch size data from open sources. We found 123 species pairs (involving 77 species) with known offspring fertility (sterile, only males fertile, or both sexes fertile). We found that divergence time and clutch size were significant predictors of reproductive isolation (McFadden's Pseudo-R2 = 0.59), but not habitat or morphological mismatch. Perhaps most interesting, we found a significant relationship between domestication and reproductive compatibility after correcting for phylogeny, removing extreme values, and addressing potential biases (F1,74 = 5.43, R2 = 0.06, P-value = 0.02). We speculate that the genetic architecture and disruption in selective reproductive regimes associated with domestication may impact reproductive isolation, causing domesticated species to be more reproductively labile.
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Affiliation(s)
- James M Alfieri
- Interdisciplinary Program in Ecology and Evolutionary Biology, Texas A&M University, College Station, TX, USA
- Department of Poultry Science, Texas A&M University, College Station, TX, USA
- Department of Biology, Texas A&M University, College Station, TX, USA
| | - Reina Hingoranee
- Department of Epidemiology and Biostatistics, Texas A&M University, College Station, TX, USA
| | - Giridhar N Athrey
- Interdisciplinary Program in Ecology and Evolutionary Biology, Texas A&M University, College Station, TX, USA
- Department of Poultry Science, Texas A&M University, College Station, TX, USA
| | - Heath Blackmon
- Interdisciplinary Program in Ecology and Evolutionary Biology, Texas A&M University, College Station, TX, USA
- Department of Biology, Texas A&M University, College Station, TX, USA
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4
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Jourdan J, El Toum Abdel Fadil S, Oehlmann J, Hupało K. Rapid development of increased neonicotinoid tolerance in non-target freshwater amphipods. ENVIRONMENT INTERNATIONAL 2024; 183:108368. [PMID: 38070438 DOI: 10.1016/j.envint.2023.108368] [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: 09/08/2023] [Revised: 11/23/2023] [Accepted: 12/02/2023] [Indexed: 01/25/2024]
Abstract
The comprehensive assessment of the long-term impacts of constant exposure to pollutants on wildlife populations remains a relatively unexplored area of ecological risk assessment. Empirical evidence to suggest that multigenerational exposure affects the susceptibility of organisms is scarce, and the underlying mechanisms in the natural environment have yet to be fully understood. In this study, we first examined the arthropod candidate species, Gammarus roeselii that - unlike closely related species - commonly occurs in many contaminated river systems of Central Europe. This makes it a suitable study organism to investigate the development of tolerances and phenotypic adaptations along pollution gradients. In a 96-h acute toxicity assay with the neonicotinoid thiacloprid, we indeed observed a successive increase in tolerance in populations coming from contaminated regions. This was accompanied by a certain phenotypic change, with increased investment into reproduction. To address the question of whether these changes are plastic or emerged from longer lasting evolutionary processes, we conducted a multigeneration experiment in the second part of our study. Here, we used closely-related Hyalella azteca and pre-exposed them for multiple generations to sublethal concentrations of thiacloprid in a semi-static design (one week renewal of media containing 0.1 or 1.0 µg/L thiacloprid). The pre-exposed individuals were then used in acute toxicity assays to see how quickly such adaptive responses can develop. Over only two generations, the tolerance to the neonicotinoid almost doubled, suggesting developmental plasticity as a plausible mechanism for the rapid adaptive response to strong selection factors such as neonicotinoid insecticides. It remains to be discovered whether the plasticity of rapidly developed tolerance is species-specific and explains why closely related species - which may not have comparable adaptive response capabilities - disappear in polluted habitats. Overall, our findings highlight the neglected role of developmental plasticity during short- and long-term exposure of natural populations to pollution. Moreover, our results show that even pollutant levels seven times lower than concentrations found in the study region have a clear impact on the developmental trajectories of non-target species.
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Affiliation(s)
- Jonas Jourdan
- Department Aquatic Ecotoxicology, Institute for Ecology, Evolution and Diversity, Goethe University, Frankfurt am Main, Germany; Kompetenzzentrum Wasser Hessen, Max-von-Laue-Straße 13 D-60438, Frankfurt am Main, Germany.
| | - Safia El Toum Abdel Fadil
- Department Aquatic Ecotoxicology, Institute for Ecology, Evolution and Diversity, Goethe University, Frankfurt am Main, Germany; Faculty of Life Sciences, Hamburg University of Applied Sciences, Ulmenliet 20 D-21033, Hamburg, Germany
| | - Jörg Oehlmann
- Department Aquatic Ecotoxicology, Institute for Ecology, Evolution and Diversity, Goethe University, Frankfurt am Main, Germany; Kompetenzzentrum Wasser Hessen, Max-von-Laue-Straße 13 D-60438, Frankfurt am Main, Germany
| | - Kamil Hupało
- Department of Aquatic Ecosystem Research, Faculty of Biology, University of Duisburg-Essen, Essen, Germany
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Zhu Q, Wang H, Zhou Z, Shi F. Phylogeny and Integrative Taxonomy of the Genera Gymnaetoides and Pseudotachycines (Orthoptera: Rhaphidophoridae). INSECTS 2022; 13:insects13070628. [PMID: 35886804 PMCID: PMC9322046 DOI: 10.3390/insects13070628] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/12/2022] [Accepted: 07/12/2022] [Indexed: 12/29/2022]
Abstract
The genera Gymnaetoides and Pseudotachycines are endemic to China and are morphologically homogeneous. The few available diagnostic characters make species identification particularly challenging. Species cannot be classified according to the given generic diagnosis, and phylogenetic analyses have not been reported. Here, we reconstruct the phylogeny using Bayesian inference and maximum likelihood and employ four approaches to delimit species. The results suggest that both Gymnaetoides and Pseudotachycines are paraphyletic. Therefore, we revise their taxonomy based on the combination of morphological characters and molecular data. A new genus Homotachycines Zhu & Shi gen. nov. is erected, and six new combinations are proposed. Species delimitation identifies 15 new species and one new subspecies: Gymnaetoides huangshanensis, G. petalus, G. yangmingensis, G. lushanensis, Pseudotachycines procerus, P. procerus guizhouensis, P. zhengi, P. nephrus, P. sagittus, P. fengyangshanensis, Homotachycines triangulus, H. quadratus, H. baokangensis, H. fusus, H. concavus, and H. qinlingensis sp. nov. Moreover, we find that the shapes of the dorsal lateral lobes and the dorsal median lobe of the male genitalia are also important characters for identifying these genera and that the shapes of the dorsal and lateral sclerites of the male genitalia are suitable for the classifications of species.
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Affiliation(s)
- Qidi Zhu
- Key Laboratory of Zoological Systematics and Application of Hebei Province, College of Life Sciences, Hebei University, Baoding 071002, China;
- Institute of Life Sciences and Green Development, Hebei University, Baoding 071002, China
| | - Haijian Wang
- College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China;
| | - Zhijun Zhou
- Key Laboratory of Zoological Systematics and Application of Hebei Province, College of Life Sciences, Hebei University, Baoding 071002, China;
- Institute of Life Sciences and Green Development, Hebei University, Baoding 071002, China
- Correspondence: (Z.Z.); (F.S.)
| | - Fuming Shi
- Key Laboratory of Zoological Systematics and Application of Hebei Province, College of Life Sciences, Hebei University, Baoding 071002, China;
- Institute of Life Sciences and Green Development, Hebei University, Baoding 071002, China
- Correspondence: (Z.Z.); (F.S.)
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Algewatta HR, Perera P, Karawita H, Dayawansa N, Manawadu D, Liyanage M. Updates on the Morphometric Characterization of Indian Pangolin ( Manis crassicaudata) in Sri Lanka. Animals (Basel) 2020; 11:E25. [PMID: 33375659 PMCID: PMC7824598 DOI: 10.3390/ani11010025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 12/17/2020] [Accepted: 12/21/2020] [Indexed: 11/17/2022] Open
Abstract
An accurate morphological description and analysis based on reliable data are unavailable for the geographically isolated population of M. crassicaudata in Sri Lanka. This study provides the most updated morphological description of M. crassicaudata with special reference to body measurements directly obtained from 27 specimens collected island-wide. Morphological parameters were recorded under three age classes that were defined based on their body weight (BW) and total body length (TBL); juvenile (BW: <4.3 kg TBL: <56.0 cm), subadult (BW: 4.3-7.3 kg TBL: 56-101 cm), and adult (BW: >7.3 kg TBL: >101 cm) and gender to reveal sexual dimorphism based on morphometric parameters. The TBL of adult males ranged between 137 and 177 cm while body weight ranged between 20.4 and 48.8 kg. The average count of body scales was 511 ± 21. The body scales were found arranged in 13 longitudinal rows with the highest number of scales observed on the vertebral scale row (16 ± 1). Three major scale morphs were identified; broad rhombic scales, elongated kite-shaped scales, and folded shaped scales. Broad rhombic shaped scales was the dominant scale type (80.49%) on the body (405 ± 7). The tail-length to body-length ratio of an Indian pangolin was 0.87. The tail length of an Indian pangolin is a reliable predictor of the TBL and has potential implications in quick field data gathering.
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Affiliation(s)
- Hirusha Randimal Algewatta
- Department of Forestry and Environmental Science, University of Sri Jayewardenepura, Nugegoda 10250, Sri Lanka; (H.R.A.); (H.K.)
| | - Priyan Perera
- Department of Forestry and Environmental Science, University of Sri Jayewardenepura, Nugegoda 10250, Sri Lanka; (H.R.A.); (H.K.)
- IUCN SSC Pangolin Specialist Group, C/o Zoological Society of London, Regent’s Park, London NW1 4RY, UK
- College of Science, Health, Engineering, and Education, Environmental and Conservation Sciences, Murdoch University, South Street, Perth, WA 6150, Australia
| | - Hasitha Karawita
- Department of Forestry and Environmental Science, University of Sri Jayewardenepura, Nugegoda 10250, Sri Lanka; (H.R.A.); (H.K.)
| | - Nihal Dayawansa
- Department of Zoology and Environment Sciences, University of Colombo, Colombo 0070, Sri Lanka;
| | - Dinushika Manawadu
- Department of National Zoological Gardens, Dehiwala 10350, Sri Lanka; (D.M.); (M.L.)
| | - Malith Liyanage
- Department of National Zoological Gardens, Dehiwala 10350, Sri Lanka; (D.M.); (M.L.)
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Hai BT, Motokawa M, Kawada SI, Abramov AV, Son NT. Skull Variation in Asian Moles of the Genus Euroscaptor (Eulipotyphla: Talpidae) in Vietnam. MAMMAL STUDY 2020. [DOI: 10.3106/ms2019-0058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Bui Tuan Hai
- Vietnam National Museum of Nature, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet St., Cau Giay, Hanoi, Vietnam
| | - Masaharu Motokawa
- The Kyoto University Museum, Kyoto University, Kyoto 606–8501, Japan
| | - Shin-Ichiro Kawada
- Department of Zoology, National Museum of Nature and Science, Tsukuba, Ibaraki 305–0005, Japan
| | - Alexei V. Abramov
- Zoological Institute, Russian Academy of Sciences, Universitetskaya nab. 1, Saint Petersburg 199034, Russia
| | - Nguyen Truong Son
- Department of Vertebrate Zoology, Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, Hanoi, Vietnam
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Bohlen J, Dvořák T, Šlechta V, Šlechtová V. Sea water shaping the freshwater biota: Hidden diversity and biogeographic history in the Paracanthocobitis zonalternans species complex (Teleostei: Nemacheilidae) in western Southeast Asia. Mol Phylogenet Evol 2020; 148:106806. [PMID: 32247884 DOI: 10.1016/j.ympev.2020.106806] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 03/13/2020] [Accepted: 03/18/2020] [Indexed: 02/03/2023]
Abstract
Western Southeast Asia is hosting one of the world's most diverse faunas, and one of the reasons for this huge diversity is the complex geologic past of the area, increasing the frequency of isolation and expansion events over evolutionary time scale. As an example case, the present study reveals the phylogeny and biogeographic history of the Paracanthocobitis zonalternans species complex, small benthic freshwater fish (Teleostei: Nemacheilidae) that are commonly occurring across western Southeast Asia (from central Myanmar through western and southern Thailand to northern Malaysia). The group is particularly interesting since it occurs in three biogeographic subdivisions (Indian, Indochinese, Malay/Sundaic) and across all of the major biogeographic barriers in the region. Basing on mitochondrial and nuclear sequence data of 93 samples from about 50 localities we found six major clades, most with exclusive geographic distribution. Divergence time dated the origin of the P. zonalternans species complex to early Miocene (17.8 MYA) and a biogeographic analysis identified the Tenasserim region as the ancestral region. From this region the fish spread during periods of lowered global sea level, particularly during late Miocene (11-8 MYA) northwards into all Burmese river basins and southwards into south Thailand and northern Malaysia. Besides lowered global sea level periods, local stream capture events allowed the complex to expand, e.g. into the Mae Klong basin. Strong fragmentations during periods with elevated sea level during the Pliocene and Pleistocene repeatedly restricted populations to refuges and shaped the observed major lineages. Our results document a higher diversity within the P. zonalternans species complex than formerly believed and a strong impact of global sea level on its evolutionary history. Low sea levels promoted dispersal and elevated sea levels fragmentation events. A very similar impact of sea level changes can be expected in all stationary fauna (freshwater and terrestrial) in all non-mountainous coastal regions worldwide.
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Affiliation(s)
- Jörg Bohlen
- Laboratory of Fish Genetics, Institute of Animal Physiology and Genetics, Rumburská 89, 277 21 Liběchov, Czech Republic.
| | - Tomáš Dvořák
- Laboratory of Fish Genetics, Institute of Animal Physiology and Genetics, Rumburská 89, 277 21 Liběchov, Czech Republic; Department of Zoology, Charles University, Viničná 7, 128 00 Prague, Czech Republic
| | - Vlastimil Šlechta
- Laboratory of Fish Genetics, Institute of Animal Physiology and Genetics, Rumburská 89, 277 21 Liběchov, Czech Republic
| | - Vendula Šlechtová
- Laboratory of Fish Genetics, Institute of Animal Physiology and Genetics, Rumburská 89, 277 21 Liběchov, Czech Republic
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9
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Loretán G, Rueda EC, Cabrera JM, Pérez-Losada M, Collins PA, Giri F. Geographical isolation and restricted gene flow drive speciation of Aegla singularis (Decapoda: Anomura: Aeglidae) in southern South America. Biol J Linn Soc Lond 2019. [DOI: 10.1093/biolinnean/blz148] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
Geographical isolation is a key element in allopatric speciation. If gene flow is interrupted for long enough by geographical barriers, populations can evolve independently and eventually form distinct species. Aegla singularis provides an ideal model to study this process due to the characteristics of the geographical area that it occupies and its limited dispersal ability. Aegla singularis inhabits streams of the Uruguay and Paraná River basins in the Neotropical region of South America. The basins are separated by the Sierra Central Mountains. Here we studied the speciation of A. singularis resulting from geographical isolation by using molecular and morphometric data. Individuals of A. singularis were analysed using geometric morphometrics and genetic data (COII and EFα1). We found significant differences in shape and genetics between A. singularis populations from the two basins. These differences suggest ongoing divergence due to restricted gene flow caused by the geographical barrier of the Sierra Central Mountains, indicating that the populations of the Parana and Uruguay River slopes are undergoing divergence.
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Affiliation(s)
- Gisela Loretán
- Instituto Nacional de Limnología, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional del Litoral, Santa Fe, CP3000, Argentina, Ciudad Universitaria, Santa Fe, Argentina
| | - Eva Carolina Rueda
- Departamento de Ciencias Naturales, FHUC-UNL, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional del Litoral, Ciudad Universitaria, Santa Fe, Argentina
| | - Juan Manuel Cabrera
- Instituto Nacional de Limnología, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional del Litoral, Santa Fe, CP3000, Argentina, Ciudad Universitaria, Santa Fe, Argentina
| | - Marcos Pérez-Losada
- Computational Biology Institute, Milken Institute School of Public Health, The George Washington University, Washington, DC, USA
- Department of Invertebrate Zoology, US National Museum of Natural History, Smithsonian Institution, Washington, DC, USA
- CIBIO-InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Campus Agrário de Vairão, Portugal
| | - Pablo Agustín Collins
- Instituto Nacional de Limnología, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional del Litoral, Santa Fe, CP3000, Argentina, Ciudad Universitaria, Santa Fe, Argentina
| | - Federico Giri
- Instituto Nacional de Limnología, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional del Litoral, Santa Fe, CP3000, Argentina, Ciudad Universitaria, Santa Fe, Argentina
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Alonso F, Terán GE, Calviño P, García I, Cardoso Y, García G. An endangered new species of seasonal killifish of the genus Austrolebias (Cyprinodontiformes: Aplocheiloidei) from the Bermejo river basin in the Western Chacoan Region. PLoS One 2018; 13:e0196261. [PMID: 29768422 PMCID: PMC5955519 DOI: 10.1371/journal.pone.0196261] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 04/02/2018] [Indexed: 11/19/2022] Open
Abstract
Austrolebias wichi, new species, is herein described from seasonal ponds of the Bermejo river basin in the Western Chacoan district in northwestern Argentina. This species was found in a single pond, a paleochannel of the Bermejo River, which is seriously disturbed by soybean plantations surrounding it. Despite intensive sampling in the area, this species was only registered in this pond where it was relatively scarce. Therefore, we consider this species as critically endangered. This species is the sister species of A. patriciae in our phylogenetic analyses and is similar, in a general external aspect, to A. varzeae and A. carvalhoi. It can be distinguished among the species of Austrolebias by its unique color pattern in males. Additionally, from A. varzeae by presenting a supraorbital band equal or longer than the infraorbital band (vs. shorter) and from A. patriciae by the convex dorsal profile of head (vs. concave). Further diagnostic characters and additional comments on its ecology and reproduction are provided.
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Affiliation(s)
- Felipe Alonso
- Instituto de Bio y Geociencias del NOA (IBIGEO)-CONICET, 9 de julio 14, Rosario de Lerma, Provincia de Salta, República Argentina
- Grupo de Investigación y Conservación de Killis (GICK), Calle, Berisso, Buenos Aires, República Argentina
- * E-mail:
| | - Guillermo Enrique Terán
- Grupo de Investigación y Conservación de Killis (GICK), Calle, Berisso, Buenos Aires, República Argentina
- Unidad Ejecutora Lillo (UEL)-CONICET-Fundación Miguel Lillo, Miguel Lillo 251, San Miguel de Tucumán, CEP, Tucumán, Argentina
| | - Pablo Calviño
- Grupo de Investigación y Conservación de Killis (GICK), Calle, Berisso, Buenos Aires, República Argentina
| | - Ignacio García
- Grupo de Investigación y Conservación de Killis (GICK), Calle, Berisso, Buenos Aires, República Argentina
- Instituto de Limnología “Dr. Raúl Ringuelet” (ILPLA)—UNLP–CONICET, La Plata, Buenos Aires, Argentina
| | - Yamila Cardoso
- Laboratorio de Sistemática y Biología Evolutiva, Facultad de Ciencias Naturales y Museo, UNLP–CONICET, La Plata, Buenos Aires, Argentina
| | - Graciela García
- Sección Genética Evolutiva, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
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Copilaş-Ciocianu D, Zimţa AA, Grabowski M, Petrusek A. Survival in northern microrefugia in an endemic Carpathian gammarid (Crustacea: Amphipoda). ZOOL SCR 2018. [DOI: 10.1111/zsc.12285] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Denis Copilaş-Ciocianu
- Department of Ecology; Faculty of Science; Charles University; Prague Czech Republic
- Laboratory of Evolutionary Ecology of Hydrobionts; Nature Research Centre; Vilnius Lithuania
| | - Alina-Andreea Zimţa
- Department of Ecology; Faculty of Science; Charles University; Prague Czech Republic
- Department of Biology-Chemistry; Faculty of Chemistry, Biology, Geography; West University of Timişoara; Timişoara Romania
| | - Michał Grabowski
- Department of Invertebrate Zoology and Hydrobiology; Faculty of Biology and Environmental Protection; University of Lodz; Łódź Poland
| | - Adam Petrusek
- Department of Ecology; Faculty of Science; Charles University; Prague Czech Republic
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Worsham MLD, Julius EP, Nice CC, Diaz PH, Huffman DG. Geographic isolation facilitates the evolution of reproductive isolation and morphological divergence. Ecol Evol 2017; 7:10278-10288. [PMID: 29238554 PMCID: PMC5723600 DOI: 10.1002/ece3.3474] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Revised: 07/17/2017] [Accepted: 08/31/2017] [Indexed: 11/07/2022] Open
Abstract
Geographic isolation is known to contribute to divergent evolution, resulting in unique phenotypes. Oftentimes morphologically distinct populations are found to be interfertile while reproductive isolation is found to exist within nominal morphological species revealing the existence of cryptic species. These disparities can be difficult to predict or explain especially when they do not reflect an inferred history of common ancestry which suggests that environmental factors affect the nature of ecological divergence. A series of laboratory experiments and observational studies were used to address what role biogeographic factors may play in the ecological divergence of Hyalella amphipods. It was found that geographic isolation plays a key role in the evolution of reproductive isolation and divergent morphology and that divergence cannot be explained by molecular genetic variation.
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Affiliation(s)
- McLean L. D. Worsham
- Department of BiologyTexas State UniversitySan MarcosTXUSA
- Department of ZoologyUniversity of HawaiiHonoluluHIUSA
| | - Eric P. Julius
- Department of BiologyTexas State UniversitySan MarcosTXUSA
| | - Chris C. Nice
- Department of BiologyTexas State UniversitySan MarcosTXUSA
| | - Peter H. Diaz
- U.S. Fish and Wildlife ServiceTexas Fish and Wildlife Conservation OfficeSan MarcosTXUSA
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