Evolutionary divergence of the PISTILLATA-like proteins in Hedyosmum orientale (Chloranthaceae) after gene duplication
文献类型：期刊论文
| 作者 | Liu, Shu-Jun; Du, Xiao-Qiu; Wu, Feng; Lin, Xue-Lei; Xu, Qi-Jing; Meng, Zheng5 |
| 刊名 | JOURNAL OF SYSTEMATICS AND EVOLUTION
 |
| 出版日期 | 2013 |
| 卷号 | 51期号:6页码:681-692 |
| 关键词 | B-function coding sequence divergence gene duplication PISTILLATA-like genes relaxed selection |
| ISSN号 | 1674-4918 |
| DOI | 10.1111/jse.12045 |
| 文献子类 | Article |
| 英文摘要 | Gene duplication and diversification is a significant aspect of gene and genome evolution, even though the evolutionary mechanism following duplication almost certainly varies by genes or gene families. We have identified three PISTILLATA (PI)-like genes, HoPI_1, HoPI_2, and HoPI_3, from basal angiosperm Hedyosmum orientale (Chloranthaceae) and found a functional divergence of these duplicate paralogs in the B-function process. However, the mechanism underlying the divergence of the three HoPI copies remains unclear. In this study, we carefully compared the coding sequence of the three duplicate HoPI paralogs, and investigated their evolutionary process after duplication. Molecular evolutionary analyses suggested that the coding sequence of the relatively recent duplicate paralogs HoPI_1 and HoPI_3 may evolve under purifying selection, but the functional constraint that acted on the coding sequence of HoPI_2 may have been relaxed. Domain swapping and site-directed mutagenesis experiments further showed that HoPI_2 has lost class B-function activity through a gradual process of mutational degradation in MADS and I domains. Although we currently have no direct in vivo evidence that HoPI_2 has lost function in floral development, the relaxed selection, in combination with its inability to rescue pi-1 mutant phenotype, indicate that this distant paralog HoPI_2 might have been converted to be functionless in the B-function process. This study provides a detailed molecular characterization of duplicate PI lineage gene divergence in a single individual level, and our results suggest that mutations in the MI region are more likely to have negative effects on the biochemical activity of PI-like proteins. |
| 学科主题 | Plant Sciences |
| 出版地 | HOBOKEN |
| 电子版国际标准刊号 | 1759-6831 |
| WOS关键词 | MADS-BOX GENES ; DETECTING POSITIVE SELECTION ; FLORAL HOMEOTIC GENES ; CLASS-B ; FUNCTIONAL DIVERGENCE ; MOLECULAR EVOLUTION ; FLOWER DEVELOPMENT ; COMPLEX PATTERNS ; DOMAIN PROTEINS ; EXPRESSION |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000326574200005 |
| 出版者 | WILEY |
| 资助机构 | National Natural Science Foundation of China(National Natural Science Foundation of China (NSFC)) ; Ministry of Science and Technology of China(Ministry of Science and Technology, China) |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/27942]  |
| 专题 | 中科院植物分子生理学重点实验室 |
| 作者单位 | 1.Wu, Feng 2.Northeast Forestry Univ, Coll Life Sci, Harbin 150040, Peoples R China 3.Grad Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Bot, Key Lab Plant Mol Physiol, Beijing 100093, Peoples R China 5.Xu, Qi-Jing 6.[Liu, Shu-Jun 7.Du, Xiao-Qiu 8.Lin, Xue-Lei |
| 推荐引用方式 GB/T 7714 | Liu, Shu-Jun,Du, Xiao-Qiu,Wu, Feng,et al. Evolutionary divergence of the PISTILLATA-like proteins in Hedyosmum orientale (Chloranthaceae) after gene duplication[J]. JOURNAL OF SYSTEMATICS AND EVOLUTION,2013,51(6):681-692. |
| APA | Liu, Shu-Jun,Du, Xiao-Qiu,Wu, Feng,Lin, Xue-Lei,Xu, Qi-Jing,&Meng, Zheng.(2013).Evolutionary divergence of the PISTILLATA-like proteins in Hedyosmum orientale (Chloranthaceae) after gene duplication.JOURNAL OF SYSTEMATICS AND EVOLUTION,51(6),681-692. |
| MLA | Liu, Shu-Jun,et al."Evolutionary divergence of the PISTILLATA-like proteins in Hedyosmum orientale (Chloranthaceae) after gene duplication".JOURNAL OF SYSTEMATICS AND EVOLUTION 51.6(2013):681-692. |
入库方式： OAI收割
来源：植物研究所
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