DOI: 10.1073/pnas.1620736114
论文题名: Gene–culture coevolution in whales and dolphins
作者: Whitehead H.
刊名: Proceedings of the National Academy of Sciences of the United States of America
ISSN: 0027-8424
出版年: 2017
卷: 114, 期: 30 起始页码: 7814
结束页码: 7821
语种: 英语
英文关键词: Cetacea
; Cultural hitchhiking
; Gene–culture coevolution
Scopus关键词: mitochondrial DNA
; animal behavior
; bottlenose dolphin
; Cetacea
; coevolution
; Conference Paper
; ecotype
; foraging behavior
; genetic analysis
; genetic variability
; habitat
; haplotype
; nonhuman
; priority journal
; social learning
; sperm whale
; toothed whale
英文摘要: Whales and dolphins (Cetacea) have excellent social learning skills as well as a long and strong mother–calf bond. These features produce stable cultures, and, in some species, sympatric groups with different cultures. There is evidence and speculation that this cultural transmission of behavior has affected gene distributions. Culture seems to have driven killer whales into distinct ecotypes, which may be incipient species or subspecies. There are ecotype-specific signals of selection in functional genes that correspond to cultural foraging behavior and habitat use by the different ecotypes. The five species of whale with matrilineal social systems have remarkably low diversity of mtDNA. Cultural hitchhiking, the transmission of functionally neutral genes in parallel with selective cultural traits, is a plausible hypothesis for this low diversity, especially in sperm whales. In killer whales the ecotype divisions, together with founding bottlenecks, selection, and cultural hitchhiking, likely explain the low mtDNA diversity. Several cetacean species show habitat-specific distributions of mtDNA haplotypes, probably the result of mother–offspring cultural transmission of migration routes or destinations. In bottlenose dolphins, remarkable small-scale differences in haplotype distribution result from maternal cultural transmission of foraging methods, and large-scale redistributions of sperm whale cultural clans in the Pacific have likely changed mitochondrial genetic geography. With the acceleration of genomics new results should come fast, but understanding gene–culture coevolution will be hampered by the measured pace of research on the socio-cultural side of cetacean biology. © 2017, National Academy of Sciences. All rights reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/163813
Appears in Collections: 气候变化与战略
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作者单位: Whitehead, H., Department of Biology, Dalhousie University, Halifax, NS B3H 4R2, Canada
Recommended Citation:
Whitehead H.. Gene–culture coevolution in whales and dolphins[J]. Proceedings of the National Academy of Sciences of the United States of America,2017-01-01,114(30)