Title |
Cetaceans evolution: insights from the genome sequences of common minke whales
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Published in |
BMC Genomics, January 2015
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DOI | 10.1186/s12864-015-1213-1 |
Pubmed ID | |
Authors |
Jung Youn Park, Yong-Rock An, Naohisa Kanda, Chul-Min An, Hye Suck An, Jung-Ha Kang, Eun Mi Kim, Du-Hae An, Hojin Jung, Myunghee Joung, Myung Hum Park, Sook Hee Yoon, Bo-Young Lee, Taeheon Lee, Kyu-Won Kim, Won Cheoul Park, Dong Hyun Shin, Young Sub Lee, Jaemin Kim, Woori Kwak, Hyeon Jeong Kim, Young-Jun Kwon, Sunjin Moon, Yuseob Kim, David W Burt, Seoae Cho, Heebal Kim |
Abstract |
BackgroundWhales have captivated the human imagination for millennia. These incredible cetaceans are the only mammals that have adapted to life in the open oceans and have been a source of human food, fuel and tools around the globe. The transition from land to water has led to various aquatic specializations related to hairless skin and ability to regulate their body temperature in cold water.ResultsWe present four common minke whale (Balaenoptera acutorostrata) genomes with depth of¿×13¿~¿×17 coverage and perform resequencing technology without a reference sequence. Our results indicated the time to the most recent common ancestors of common minke whales to be about 2.3574 (95% HPD, 1.1521 ¿ 3.9212) million years ago. Further, we found that genes associated with cytoskeleton and tooth-development showed signatures of positive selection, supporting the morphological uniqueness of whales.ConclusionsThis whole-genome sequencing offers a chance to better understand the evolutionary journey of one of the largest mammals on earth. |
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