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An Indo-Pacific Humpback Dolphin Genome Reveals Insights into Chromosome Evolution and the Demography of a Vulnerable Species
Zhang,Peijun1,4; Zhao,Yong2; Li,Chang2,8; Lin,Mingli1; Dong,Lijun1; Zhang,Rui2; Liu,Mingzhong1; Li,Kuan1; Zhang,He2,20; Liu,Xiaochuan2; Zhang,Yaolei2,21; Yuan,Yuan1,11; Liu,Huan3; Seim,Inge9,10; Sun,Shuai2; Du,Xiao2; Chang,Yue2; Li,Feida3; Liu,Shanshan2; Lee,Simon Ming Yuen5; Wang,Kun11; Wang,Ding12; Wang,Xianyan13; McGowen,Michael R.14; Jefferson,Thomas A.15; Olsen,Morten Tange16; Stiller,Josefin4; Zhang,Guojie4,6,19; Xu,Xun2,3; Yang,Huanming3,6; Fan,Guangyi2,5; Liu,Xin2,3,7,18; Li,Songhai1,17,22
Source PublicationiScience

The Indo-Pacific humpback dolphin (Sousa chinensis) is a small inshore species of odontocete cetacean listed as Vulnerable on the IUCN Red List. Here, we report on the evolution of S. chinensis chromosomes from its cetruminant ancestor and elucidate the evolutionary history and population genetics of two neighboring S. chinensis populations. We found that breakpoints in ancestral chromosomes leading to S. chinensis could have affected the function of genes related to kidney filtration, body development, and immunity. Resequencing of individuals from two neighboring populations in the northwestern South China Sea, Leizhou Bay and Sanniang Bay, revealed genetic differentiation, low diversity, and small contemporary effective population sizes. Demographic analyses showed a marked decrease in the population size of the two investigated populations over the last ~4,000 years, possibly related to climatic oscillations. This study implies a high risk of extinction and strong conservation requirement for the Indo-Pacific humpback dolphin.

KeywordEvolutionary Biology Genetics Genomics
URLView the original
Indexed BySCIE
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000581985500093
Scopus ID2-s2.0-85092632069
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Cited Times [WOS]:5   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionInstitute of Chinese Medical Sciences
Corresponding AuthorFan,Guangyi; Liu,Xin; Li,Songhai
Affiliation1.Marine Mammal and Marine Bioacoustics Laboratory,Institute of Deep-sea Science and Engineering,Chinese Academy of Sciences,Sanya,572000,China
4.Section for Ecology and Evolution,Department of Biology,University of Copenhagen,Copenhagen,2100,Denmark
5.State Key Laboratory of Quality Research in Chinese Medicine,Institute of Chinese Medical Sciences,University of Macau,Macao,999078,Macao
6.China National GeneBank,BGI-Shenzhen,Shenzhen,518120,China
8.BGI Education Center,University of Chinese Academy of Sciences,Shenzhen,518083,China
9.Integrative Biology Laboratory,College of Life Sciences,Nanjing Normal University,Nanjing,210023,China
10.Comparative and Endocrine Biology Laboratory,Translational Research Institute-Institute of Health and Biomedical Innovation,School of Biomedical Sciences,Queensland University of Technology,Brisbane,4102,Australia
11.Center for Ecological and Environmental Sciences,Northwestern Polytechnical University,Xi'an,710072,China
12.Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of Sciences,Institute of Hydrobiology,Chinese Academy of Sciences,Wuhan,430072,China
13.Third Institute of Oceanography,Ministry of Natural Resources,Xiamen,361005,China
14.Department of Vertebrate Zoology,Smithsonian National Museum of Natural History,Washington DC,20560,United States
15.Clymene Enterprises,Yerba Valley Way,Lakeside,92040,United States
16.Evolutionary Genomics Section,Globe Institute,University of Copenhagen,Copenhagen,Øster Farimagsgade 5,1353,Denmark
17.Function Laboratory for Marine Fisheries Science and Food Production Processes,Qingdao National Laboratory for Marine Science and Technology,Qingdao,266237,China
18.State Key Laboratory of Agricultural Genomics,BGI-Shenzhen,Shenzhen,518083,China
19.State Key Laboratory of Genetic Resources and Evolution,Kunming Institute of Zoology,Chinese Academy of Sciences,Kunming,650223,China
20.Department of Biology,Hong Kong Baptist University,Hong Kong,Hong Kong
21.Department of Biotechnology and Biomedicine,Technical University of Denmark,Lyngby,2800,Denmark
22.Tropical Marine Science Institute,National University of Singapore,Singapore,119227,Singapore
Corresponding Author AffilicationInstitute of Chinese Medical Sciences
Recommended Citation
GB/T 7714
Zhang,Peijun,Zhao,Yong,Li,Chang,et al. An Indo-Pacific Humpback Dolphin Genome Reveals Insights into Chromosome Evolution and the Demography of a Vulnerable Species[J]. iScience,2020,23(10).
APA Zhang,Peijun.,Zhao,Yong.,Li,Chang.,Lin,Mingli.,Dong,Lijun.,Zhang,Rui.,Liu,Mingzhong.,Li,Kuan.,Zhang,He.,Liu,Xiaochuan.,Zhang,Yaolei.,Yuan,Yuan.,Liu,Huan.,Seim,Inge.,Sun,Shuai.,Du,Xiao.,Chang,Yue.,Li,Feida.,Liu,Shanshan.,...&Li,Songhai.(2020).An Indo-Pacific Humpback Dolphin Genome Reveals Insights into Chromosome Evolution and the Demography of a Vulnerable Species.iScience,23(10).
MLA Zhang,Peijun,et al."An Indo-Pacific Humpback Dolphin Genome Reveals Insights into Chromosome Evolution and the Demography of a Vulnerable Species".iScience 23.10(2020).
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