您好，欢迎访问中国热带农业科学院 机构知识库！
中国热带农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Analysis of Lhc family genes reveals development regulation and diurnal fluctuation expression patterns in Cyperus esculentus, a Cyperaceae plant

文献类型： 外文期刊

作者： Zou, Zhi 1 ; Xiao, Yanhua 1 ; Zhang, Li 1 ; Zhao, Yongguo 1 ;

作者机构： 1.Chinese Acad Trop Agr Sci, Inst Trop Biosci & Biotechnol, Hainan Key Lab Biosafety Monitoring & Mol Breeding, Sanya Res Inst, Haikou, Hainan, Peoples R China

2.South Cent Minzu Univ, Coll Life Sci, Hubei Prov Key Lab Protect & Applicat Special Plan, Wuhan 430074, Hubei, Peoples R China

3.Guangdong Univ Petrochem Technol, Maoming 525000, Guangdong, Peoples R China

关键词： Evolution; Expression profile; Leaf development; Light-harvesting chlorophyll a; b-binding protein; Tigernut; Yellow nutsedge

期刊名称：PLANTA （ 影响因子：4.3； 五年影响因子：4.8 ）

ISSN： 0032-0935

年卷期： 2023 年 257 卷 3 期

页码：

收录情况： SCI

摘要： Main conclusionSixteen Lhc genes representing 13 phylogenetic groups were identified from the full-length transcriptome of tigernut, exhibiting development regulation and diurnal fluctuation expression patterns in leaves.Nuclear encoded light-harvesting chlorophyll a/b-binding (Lhc) proteins play indispensable roles in oxygenic photosynthesis. In this study, we present the first transcriptome-based characterization of Lhc family genes in tigernut (Cyperus esculentus L.), a Cyperaceae C-4 plant producing oil in underground tubers. A number of 16 Lhc genes representing 13 phylogenetic groups identified from the full-length tigernut transcriptome are equal to that found in both Carex littledalei (another Cyperaceae plant) and papaya, slightly more than 15 members present in both rice and jatropha, but relatively less than 18, 20, and 21 members present in sorghum, cassava, and Arabidopsis, respectively. Nevertheless, nearly one-vs-one orthologous relationship was observed in most groups, though some of them are no longer located in syntenic blocks and species-specific expansion was frequently found in Lhcb1. Comparative genomics analysis revealed that the loss of two groups (i.e., Lhca2 and Lhca5) in C. littledalei is species-specific, sometime after the split with tigernut, and the expansion of Lhcb1 was mainly contributed by tandem duplication as observed in most species. Interestingly, a transposed duplication, which appears to be shared by monocots, was also identified in Lhcb1. Further transcriptome profiling revealed a predominant expression pattern of most CeLhc family genes in photosynthetic tissues and enhanced transcription during leaf maturation, reflecting their key roles in light absorption. Moreover, qRT-PCR analysis revealed an apparent diurnal fluctuation expression pattern of 11 dominant CeLhc genes. These findings not only highlight species-specific evolution of Lhc genes in the Cyperaceae family as well as the monocot lineage, but also provide valuable information for further functional analysis and genetic improvement in tigernut.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：中国热带农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台