4.8 Article

Gene family evolution in green plants with emphasis on the origination and evolution of Arabidopsis thaliana genes

期刊

PLANT JOURNAL
卷 73, 期 6, 页码 941-951

出版社

WILEY
DOI: 10.1111/tpj.12089

关键词

Arabidopsis thaliana; evolutionary genomics; gene family; gene origination; green plants

资金

  1. Chinese Academy of Sciences
  2. Max Planck Society

向作者/读者索取更多资源

Gene family size variation is an important mechanism that shapes the natural variation for adaptation in various species. Despite its importance, the pattern of gene family size variation in green plants is still not well understood. In particular, the evolutionary pattern of genes and gene families remains unknown in the model plant Arabidopsis thaliana in the context of green plants. In this study, eight representative genomes of green plants are sampled to study gene family evolution and characterize the origination of A.thaliana genes, respectively. Four important insights gained are that: (i) the rate of gene gains and losses is about 0.001359 per gene every million years, similar to the rate in yeast, Drosophila, and mammals; (ii) some gene families evolved rapidly with extreme expansions or contractions, and 2745 gene families present in all the eight species represent the core' proteome of green plants; (iii) 70% of A.thaliana genes could be traced back to 450million years ago; and (iv) intriguingly, A.thaliana genes with early origination are under stronger purifying selection and more conserved. In summary, the present study provides genome-wide insights into evolutionary history and mechanisms of genes and gene families in green plants and especially in A.thaliana.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.8
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据