An Indo-Pacific Humpback Dolphin Genome Reveals Insights into Chromosome Evolution and the Demography of a Vulnerable Species

被引：21

作者：

Zhang, Peijun ^{[1
,4
]}

Zhao, Yong ^{[2
]}

Li, Chang ^{[2
,8
]}

Lin, Mingli ^{[1
]}

Dong, Lijun ^{[1
]}

Zhang, Rui ^{[2
]}

Liu, Mingzhong ^{[1
]}

Li, Kuan ^{[1
]}

Zhang, He ^{[2
,20
]}

Liu, Xiaochuan ^{[2
]}

Zhang, Yaolei ^{[2
,21
]}

Yuan, Yuan ^{[1
,11
]}

Liu, Huan ^{[3
]}

Seim, Inge ^{[9
,10
]}

Sun, Shuai ^{[2
]}

Du, Xiao ^{[2
]}

Chang, Yue ^{[2
]}

Li, Feida ^{[3
]}

Liu, Shanshan ^{[2
]}

Lee, Simon Ming-Yuen ^{[5
]}

Wang, Kun ^{[11
]}

Wang, Ding ^{[12
]}

Wang, Xianyan ^{[13
]}

McGowen, Michael R. ^{[14
]}

Jefferson, Thomas A. ^{[15
]}

Olsen, Morten Tange ^{[16
]}

Stiller, Josefin ^{[4
]}

Zhang, Guojie ^{[4
,6
,19
]}

Xu, Xun ^{[2
,3
]}

Yang, Huanming ^{[3
,6
]}

Fan, Guangyi ^{[2
,5
]}

Liu, Xin ^{[2
,3
,7
,18
]}

Li, Songhai ^{[1
,17
,22
]}

机构：

[1] Chinese Acad Sci, Inst Deepsea Sci & Engn Chinese, Marine Mammal & Marine Bioacoust Lab, Sanya 572000, Hainan, Peoples R China

[2] BGI Shenzhen, BGI Qingdao, Qingdao 266555, Shandong, Peoples R China

[3] BGI Shenzhen, Shenzhen 518083, Guangdong, Peoples R China

[4] Univ Copenhagen, Dept Biol, Sect Ecol & Evolut, DK-2100 Copenhagen, Denmark

[5] Univ Macau, Inst Chinese Med Sci, State Key Lab Qual Res Chinese Med, Macau 999078, Peoples R China

[6] BGI Shenzhen, China Natl GeneBank, Shenzhen 518120, Guangdong, Peoples R China

[7] BGI Shenzhen, BGI Fuyang, Fuyang 236009, Anhui, Peoples R China

[8] Univ Chinese Acad Sci, BGI Educ Ctr, Shenzhen 518083, Guangdong, Peoples R China

[9] Nanjing Normal Univ, Coll Life Sci, Integrat Biol Lab, Nanjing 210023, Jiangsu, Peoples R China

[10] Queensland Univ Technol, Sch Biomed Sci, Inst Hlth & Biomed Innovat, Comparat & Endocrine Biol Lab,Translat Res Inst, Brisbane, Qld 4102, Australia

[11] Northwestern Polytech Univ, Ctr Ecol & Environm Sci, Xian 710072, Shaanxi, Peoples R China

[12] Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Hubei, Peoples R China

[13] Minist Nat Resources, Inst Oceanog 3, Xiamen 361005, Fujian, Peoples R China

[14] Smithsonian Natl Museum Nat Hist, Dept Vertebrate Zool, Washington, DC 20560 USA

[15] Clymene Enterprises, Yerba Valley Way, Lakeside, CA 92040 USA

[16] Univ Copenhagen, Globe Inst, Evolutionary Genom Sect, Oster Farimagsgade 5, DK-1353 Copenhagen, Denmark

[17] Qingdao Natl Lab Marine Sci & Technol, Funct Lab Marine Fisheries Sci & Food Prod Proc, Qingdao 266237, Shandong, Peoples R China

[18] BGI Shenzhen, State Key Lab Agr Genom, Shenzhen 518083, Guandong, Peoples R China

[19] Chinese Acad Sci, Kunming Inst Zool, State Key Lab Genet Resources & Evolut, Kunming 650223, Yunnan, Peoples R China

[20] Hong Kong Baptist Univ, Dept Biol, Hong Kong, Peoples R China

[21] Tech Univ Denmark, Dept Biotechnol & Biomed, DK-2800 Lyngby, Denmark

[22] Natl Univ Singapore, Trop Marine Sci Inst, Singapore 119227, Singapore

来源：

ISCIENCE | 2020年 / 23卷 / 10期

基金：

中国国家自然科学基金;

关键词：

SOUSA-CHINENSIS; POPULATION GENOMICS; SELECTION; DATABASE; CONSERVATION; RECEPTORS; DYNAMICS; FINDER; LIMB; TOOL;

D O I：

10.1016/j.isci.2020.101640

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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 similar to 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.

引用

页数：52

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