文献类型: 外文期刊
第一作者: Schnable, James C.
作者: Schnable, James C.;Freeling, Michael;Wang, Xiaowu;Pires, J. Chris
作者机构:
关键词: polyploidy;gene dosage;gene loss;genome evolution;comparative genomics;crucifers;grasses
期刊名称:FRONTIERS IN PLANT SCIENCE ( 影响因子:5.753; 五年影响因子:6.612 )
ISSN: 1664-462X
年卷期: 2012 年 3 卷
页码:
收录情况: SCI
摘要: The well supported gene dosage hypothesis predicts that genes encoding proteins engaged in dose sensitive interactions cannot be reduced back to single copies once all interacting partners are simultaneously duplicated in a whole genome duplication. The genomes of extant flowering plants are the result of many sequential rounds of whole genome duplication, yet the fraction of genomes devoted to encoding complex molecular machines does not increase as fast as expected through multiple rounds of whole genome duplications. Using parallel interspecies genomic comparisons in the grasses and crucifers, we demonstrate that genes retained as duplicates following a whole genome duplication have only a 50% chance of being retained as duplicates in a second whole genome duplication. Genes which fractionated to a single copy following a second whole genome duplication tend to be the member of a gene pair with less complex promoters, lower levels of expression, and to be under lower levels of purifying selection. We suggest the copy with lower levels of expression and less purifying selection contributes less to effective gene-product dosage and therefore is under less dosage constraint in future whole genome duplications, providing an explanation for why flowering plant genomes are not overrun with subunits of large dose sensitive protein complexes.
分类号:
- 相关文献
作者其他论文 更多>>
-
Rapid and Sensitive On-Site Nucleic Acid Detection of Three Main Fusarium Pathogens of Maize Stalk Rot Based on RPA-CRISPR/Cas12a
作者:Jiang, Fan;Jiang, Fan;Ding, Xinhua;Wang, Xiaowu;Fu, Kaiyun;Jia, Zunzun;Guo, Wenchao;Jiang, Fan;Liang, Liang
关键词:CRISPR/Cas12a;
Fusarium graminearum ;Fusarium proliferatum ;Fusarium verticillioides ; recombinase polymerase amplification (RPA) -
Chromosome-level genome assembly of Z strain European corn borer Ostrinia nubilalis (Lepidoptera: Crambidae)
作者:Ding, Xinhua;Wang, Xiaowu;Fu, Kaiyun;Jia, Zunzun;Rouzi, Aerziguli;Ahmat, Tursun;Guo, Wenchao;Zhang, Yue;Wang, Zhihui
关键词:
-
Effects of Dioscorea oppositifolia L. on growth performance, biochemical indicators, immunity, and intestinal health of weaned piglets
作者:Pan, Xiang-Yi;Qiu, Zheng-Ying;Liu, Chen;Li, Si-Fan;Shi, Xiong-Wei;Ge, Shao-Guang;Xin, Rui-Hua;Pan, Xiang-Yi;Qiu, Zheng-Ying;Liu, Chen;Li, Si-Fan;Shi, Xiong-Wei;Ge, Shao-Guang;Xin, Rui-Hua;Pan, Xiang-Yi;Qiu, Zheng-Ying;Liu, Chen;Li, Si-Fan;Shi, Xiong-Wei;Ge, Shao-Guang;Xin, Rui-Hua;Wang, Chuan;Wang, Xiaowu;Huang, Li-Na
关键词:
Dioscorea oppositifolia L.; weaned piglets; growth performance; immune performance; intestinal health; gut microbiome -
Developmental landscape and asymmetric gene expression in the leaf vasculature of Brassica rapa revealed by single-cell transcriptome
作者:Guo, Xinlei;Yuan, Jingping;Zhang, Yuanyuan;Wu, Jian;Wang, Xiaowu
关键词:
-
Interspecies Conservation of Gene Expression Patterns in Brassica Reproductive Organs Unveiled by Comparative Transcriptomics
作者:Chen, Haixu;Hou, Xilin;Chen, Haixu;Cai, Xu;Wu, Jian;Wang, Xiaowu
关键词:Brassica; comparative transcriptomics; subgenome; transcription factors (TFs)
-
Time-resolved single-cell atlas identifies the spatiotemporal transcription dynamics in vernalization response in Brassica rapa
作者:Zhang, Zhicheng;Cai, Xu;Liang, Jianli;Liu, Jiahe;Guo, Jing;Wang, Xiaowu;Wu, Jian;Zhang, Zhicheng;Yang, Wencai
关键词:
-
Genome sequence of the wild species, Spinacia tetrandra, including a phased sequence of the extensive sex-linked region, revealing partial degeneration in evolutionary strata with unusual properties
作者:She, Hongbing;Liu, Zhiyuan;Xu, Zhaosheng;Zhang, Helong;Wu, Jian;Wang, Xiaowu;Cheng, Feng;Qian, Wei;Liu, Zhiyuan;Charlesworth, Deborah
关键词:coverage; evolutionary strata; repetitive sequences; sex-linked regions; wild spinach species