Population genomics of finless porpoises reveal an incipient cetacean species adapted to freshwater

Xuming Zhou; Xuanmin Guang; Di Sun; Shixia Xu; Mingzhou Li; Inge Seim; Wencai Jie; Linfeng Yang; Qianhua Zhu; Jiabao Xu; Qiang Gao; Alaattin Kaya; Qianhui Dou; Bingyao Chen; Wenhua Ren; Shuaicheng Li; Kaiya Zhou; Vadim N. Gladyshev; Rasmus Nielsen; Xiaodong Fang; Guang Yang

doi:10.1038/s41467-018-03722-x

Population genomics of finless porpoises reveal an incipient cetacean species adapted to freshwater

Xuming Zhou, Xuanmin Guang, Di Sun, Shixia Xu, Mingzhou Li, Inge Seim, Wencai Jie, Linfeng Yang, Qianhua Zhu, Jiabao Xu, Qiang Gao, Alaattin Kaya, Qianhui Dou, Bingyao Chen, Wenhua Ren, Shuaicheng Li, Kaiya Zhou, Vadim N. Gladyshev, Rasmus Nielsen^*, Xiaodong FangGuang Yang

^*Corresponding author for this work

28 Citations (Scopus)

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Abstract

Cetaceans (whales, dolphins, and porpoises) are a group of mammals adapted to various aquatic habitats, from oceans to freshwater rivers. We report the sequencing, de novo assembly and analysis of a finless porpoise genome, and the re-sequencing of an additional 48 finless porpoise individuals. We use these data to reconstruct the demographic history of finless porpoises from their origin to the occupation into the Yangtze River. Analyses of selection between marine and freshwater porpoises identify genes associated with renal water homeostasis and urea cycle, such as urea transporter 2 and angiotensin I-converting enzyme 2, which are likely adaptations associated with the difference in osmotic stress between ocean and rivers. Our results strongly suggest that the critically endangered Yangtze finless porpoises are reproductively isolated from other porpoise populations and harbor unique genetic adaptations, supporting that they should be considered a unique incipient species.

Original language	English
Article number	1276
Journal	Nature Communications
Volume	9
Number of pages	8
ISSN	2041-1723
DOIs	https://doi.org/10.1038/s41467-018-03722-x
Publication status	Published - 2018
Externally published	Yes

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Population genomics of finless porpoises reveal an incipient cetacean species adapted to freshwaterFinal published version, 1.35 MBLicence: CC BY

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Zhou, X., Guang, X., Sun, D., Xu, S., Li, M., Seim, I., Jie, W., Yang, L., Zhu, Q., Xu, J., Gao, Q., Kaya, A., Dou, Q., Chen, B., Ren, W., Li, S., Zhou, K., Gladyshev, V. N., Nielsen, R., ... Yang, G. (2018). Population genomics of finless porpoises reveal an incipient cetacean species adapted to freshwater. Nature Communications, 9, [1276]. https://doi.org/10.1038/s41467-018-03722-x

Zhou, X, Guang, X, Sun, D, Xu, S, Li, M, Seim, I, Jie, W, Yang, L, Zhu, Q, Xu, J, Gao, Q, Kaya, A, Dou, Q, Chen, B, Ren, W, Li, S, Zhou, K, Gladyshev, VN, Nielsen, R, Fang, X & Yang, G 2018, 'Population genomics of finless porpoises reveal an incipient cetacean species adapted to freshwater', Nature Communications, vol. 9, 1276. https://doi.org/10.1038/s41467-018-03722-x

@article{a3b44a2f157f42368d420aa59467708c,

title = "Population genomics of finless porpoises reveal an incipient cetacean species adapted to freshwater",

abstract = "Cetaceans (whales, dolphins, and porpoises) are a group of mammals adapted to various aquatic habitats, from oceans to freshwater rivers. We report the sequencing, de novo assembly and analysis of a finless porpoise genome, and the re-sequencing of an additional 48 finless porpoise individuals. We use these data to reconstruct the demographic history of finless porpoises from their origin to the occupation into the Yangtze River. Analyses of selection between marine and freshwater porpoises identify genes associated with renal water homeostasis and urea cycle, such as urea transporter 2 and angiotensin I-converting enzyme 2, which are likely adaptations associated with the difference in osmotic stress between ocean and rivers. Our results strongly suggest that the critically endangered Yangtze finless porpoises are reproductively isolated from other porpoise populations and harbor unique genetic adaptations, supporting that they should be considered a unique incipient species.",

author = "Xuming Zhou and Xuanmin Guang and Di Sun and Shixia Xu and Mingzhou Li and Inge Seim and Wencai Jie and Linfeng Yang and Qianhua Zhu and Jiabao Xu and Qiang Gao and Alaattin Kaya and Qianhui Dou and Bingyao Chen and Wenhua Ren and Shuaicheng Li and Kaiya Zhou and Gladyshev, {Vadim N.} and Rasmus Nielsen and Xiaodong Fang and Guang Yang",

year = "2018",

doi = "10.1038/s41467-018-03722-x",

language = "English",

volume = "9",

journal = "Nature Communications",

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T1 - Population genomics of finless porpoises reveal an incipient cetacean species adapted to freshwater

AU - Zhou, Xuming

AU - Guang, Xuanmin

AU - Sun, Di

AU - Xu, Shixia

AU - Li, Mingzhou

AU - Seim, Inge

AU - Jie, Wencai

AU - Yang, Linfeng

AU - Zhu, Qianhua

AU - Xu, Jiabao

AU - Gao, Qiang

AU - Kaya, Alaattin

AU - Dou, Qianhui

AU - Chen, Bingyao

AU - Ren, Wenhua

AU - Li, Shuaicheng

AU - Zhou, Kaiya

AU - Gladyshev, Vadim N.

AU - Nielsen, Rasmus

AU - Fang, Xiaodong

AU - Yang, Guang

PY - 2018

Y1 - 2018

N2 - Cetaceans (whales, dolphins, and porpoises) are a group of mammals adapted to various aquatic habitats, from oceans to freshwater rivers. We report the sequencing, de novo assembly and analysis of a finless porpoise genome, and the re-sequencing of an additional 48 finless porpoise individuals. We use these data to reconstruct the demographic history of finless porpoises from their origin to the occupation into the Yangtze River. Analyses of selection between marine and freshwater porpoises identify genes associated with renal water homeostasis and urea cycle, such as urea transporter 2 and angiotensin I-converting enzyme 2, which are likely adaptations associated with the difference in osmotic stress between ocean and rivers. Our results strongly suggest that the critically endangered Yangtze finless porpoises are reproductively isolated from other porpoise populations and harbor unique genetic adaptations, supporting that they should be considered a unique incipient species.

AB - Cetaceans (whales, dolphins, and porpoises) are a group of mammals adapted to various aquatic habitats, from oceans to freshwater rivers. We report the sequencing, de novo assembly and analysis of a finless porpoise genome, and the re-sequencing of an additional 48 finless porpoise individuals. We use these data to reconstruct the demographic history of finless porpoises from their origin to the occupation into the Yangtze River. Analyses of selection between marine and freshwater porpoises identify genes associated with renal water homeostasis and urea cycle, such as urea transporter 2 and angiotensin I-converting enzyme 2, which are likely adaptations associated with the difference in osmotic stress between ocean and rivers. Our results strongly suggest that the critically endangered Yangtze finless porpoises are reproductively isolated from other porpoise populations and harbor unique genetic adaptations, supporting that they should be considered a unique incipient species.

U2 - 10.1038/s41467-018-03722-x

DO - 10.1038/s41467-018-03722-x

M3 - Journal article

C2 - 29636446

AN - SCOPUS:85045261840

SN - 2041-1723

VL - 9

JO - Nature Communications

JF - Nature Communications

M1 - 1276

ER -

Population genomics of finless porpoises reveal an incipient cetacean species adapted to freshwater

Abstract

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