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Adaptive Evolution Patterns in the Pacific Oyster Crassostrea gigas
Song, Kai1; Wen, Shiyong2,3; Zhang, Guofan4
2019-10-01
Source PublicationMARINE BIOTECHNOLOGY
ISSN1436-2228
Volume21Issue:5Pages:614-622
Corresponding AuthorSong, Kai(songkai1987@126.com) ; Zhang, Guofan(gzhang@qdio.ac.cn)
AbstractEstimation of adaptive evolution rates at the molecular level is important in evolutionary genomics. However, knowledge of adaptive evolutionary patterns in Mollusca is very scarce, especially for oysters. Such information would help clarify how oysters adapt to pathogen-rich and dynamically changing intertidal environments. In this study, we characterized the patterns of adaptive evolution in the Crassostrea gigas genome, using population diversity analysis and congeneric comparison. Our analysis revealed that gene expression patterns were positively associated with adaptive evolution rates, which suggested that positive selection played an important role in gene evolution. The genes with more exons and alternative splicing events had higher adaptive evolution rates. The rates of adaptive evolution in immune-related and stress-response genes were higher than those in other genes, suggesting that these groups of genes experienced strong positive selection. This study represents the first analysis of adaptive evolution rates in oysters and the first comprehensive study of a Mollusca species. These results provide a system-level investigation of association between adaptive evolution rates with some intrinsic genetic factors. They also suggest that adaptation to pathogens and environmental stressors are important forces driving the adaptive evolution of genes.
KeywordAdaptive evolution rates Gene expression pattern Crassostrea gigas
DOI10.1007/s10126-019-09906-w
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[11701546] ; National Natural Science Foundation of China[31530079]
WOS Research AreaBiotechnology & Applied Microbiology ; Marine & Freshwater Biology
WOS SubjectBiotechnology & Applied Microbiology ; Marine & Freshwater Biology
WOS IDWOS:000487127600004
PublisherSPRINGER
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/162960
Collection实验海洋生物学重点实验室
Corresponding AuthorSong, Kai; Zhang, Guofan
Affiliation1.Qingdao Univ, Sch Math & Stat, Qingdao 266071, Shandong, Peoples R China
2.Inner Mongolia Agr Univ, Coll Vet Med, Hohhot 010018, Peoples R China
3.Dezhou State Owned Assets Supervis & Adm Commiss, Dezhou 253000, Peoples R China
4.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao 266071, Shandong, Peoples R China
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Song, Kai,Wen, Shiyong,Zhang, Guofan. Adaptive Evolution Patterns in the Pacific Oyster Crassostrea gigas[J]. MARINE BIOTECHNOLOGY,2019,21(5):614-622.
APA Song, Kai,Wen, Shiyong,&Zhang, Guofan.(2019).Adaptive Evolution Patterns in the Pacific Oyster Crassostrea gigas.MARINE BIOTECHNOLOGY,21(5),614-622.
MLA Song, Kai,et al."Adaptive Evolution Patterns in the Pacific Oyster Crassostrea gigas".MARINE BIOTECHNOLOGY 21.5(2019):614-622.
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