The correlation coefficient of GC content of the genome-wide genes is positively correlated with animal evolutionary relationships

被引:7
|
作者
Du, Hongli [2 ]
Hua, Haofu [2 ]
Meng, Yuhuan [2 ]
Zheng, Weihao [2 ]
Ling, Fei [2 ]
Wang, Jufang [2 ]
Zhang, Xiquan [1 ]
Nie, Qinghua [1 ]
Wang, Xiaoning [2 ]
机构
[1] S China Agr Univ, Coll Anim Sci, Guangzhou 510642, Guangdong, Peoples R China
[2] S China Univ Technol, Sch Biosci & Bioengn, Guangzhou 510006, Guangdong, Peoples R China
关键词
GC content; Evolutionary relationship; Correlation coefficient; Genome-wide; Orthologous gene; VERTEBRATE GENOMES; ISOCHORE PATTERNS; CLUSTERS;
D O I
10.1016/j.febslet.2010.08.003
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
In this study, we present a new method for evaluating animal evolutionary relationships. We used the GC% levels of genome-wide genes to determine the correlation between the GC% content and evolutionary relationship. The correlation coefficients of the GC% content of the orthologous genes of the paired animal species were calculated for a total of 21 species, and the evolutionary branching dates of these 21 species were derived from fossil records. The correlation coefficient of the GC% content of the orthologous genes of the species pair under study served as an indicator of their evolutionary relationship. Moreover, there was a decreasing linear relationship between the correlation coefficient and evolutionary branching date (R(2) = 0.930). (c) 2010 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码:3990 / 3994
页数:5
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