Genome-wide Expansion and Expression Divergence of the Basic Leucine Zipper Transcription Factors in Higher Plants with an Emphasis on Sorghum

查看全文 作　　者：Jizhou [1]Wang;Junxia [1]Zhou;Baolan [1]Zhang;Jeevanandam [2]Vanitha;Srinivasan [1,2]Ramachandran;Shu-Ye [1,2]Jiang

机构地区：[1]Institute of Botany and Temasek Life Sciences Laboratory Joint Research & Development Laboratory, Institute of Botany, the Chinese Academy of Sciences, Beijing 100093, China;[2]Temasek Life Sciences Laboratory, 1 Research Link, the National University of Singapore, Singapore 117604, Singapore

出　　处：《Journal of Integrative Plant Biology》索引2011年第53卷第3期,共20页

基　　金：supported by Strategic Research Program from Temasek Life Sciences Laboratory in Singapore 摘　　要：Plant bZIP transcription factors play crucial roles in multiple biological processes.However,little is known about the sorghum bZIP gene family although the sorghum genome has been completely sequenced.In this study,we have carried out a genome-wide identification and characterization of this gene family in sorghum.Our data show that the genome encodes at least 92 bZIP transcription factors.These bZIP genes have been expanded mainly by segmental duplication.Such an expansion mechanism has also been observed in rice,arabidopsis and many other plant organisms,suggesting a common expansion mode of this gene family in plants.Further investigation shows that most of the bZIP members have been present in the most recent common ancestor of sorghum and rice and the major expansion would occur before the sorghum-rice split era.Although these bZIP genes have been duplicated with a long history,they exhibited limited functional divergence as shown by nonsynonymous substitutions (Ka)/synonymous substitutions (Ks) analyses.Their retention was mainly due to the high percentages of expression divergence.Our data also showed that this gene family might play a role in multiple developmental stages and tissues and might be regarded as important regulators of various abiotic stresses and sugar signaling. 关键词：高等植物转录因子亮氨酸拉链基因组表达高粱分歧基因家族点对

相关文献

参考文献（107）
引证文献（46）
耦合文献（42）

参考文献(107)

引证文献(46)

耦合文献(42)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Genome-wide Expansion and Expression Divergence of the Basic Leucine Zipper Transcription Factors in Higher Plants with an Emphasis on Sorghum

参考文献(107)

引证文献(46)

耦合文献(42)

用户提示