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

Genetic control of fatty acid composition in coconut (Cocos nucifera), African oil palm (Elaeis guineensis), and date palm (Phoenix dactylifera)

文献类型： 外文期刊

作者： Xiao, Yong 1 ; Xia, Wei 2 ; Mason, Annaliese S.; Cao, Zengying 3 ; Fan, Haikuo 1 ; Zhang, Bo 2 ; Zhang, Jinlan 2 ; Ma, 1 ;

作者机构： 1.CATAS, Coconut Res Inst, Wenchang 571339, Hainan, Peoples R China

2.Hainan Univ, Inst Trop Agr & Forestry, Hainan Key Lab Sustainable Utilizat Trop Bioresou, Haikou 570228, Hainan, Peoples R China

3.CATAS, Inst Trop Biosci & Biotechnol, MOA Key Lab Trop Crop Biol & Genet Resources Util, Haikou 571101, Hainan, Peoples R China

4.CATAS, Inst Trop Biosci & Biotechnol, MOA Key Lab Trop Crop Biol & Genet Resources Util, Haikou 571101, Hainan,

关键词： Expression bias; Homologous segment; Lipid-related genes; Oil composition; Predominant gene isoforms

期刊名称：PLANTA （ 影响因子：4.116； 五年影响因子：4.316 ）

ISSN： 0032-0935

年卷期： 2019 年 249 卷 2 期

页码：

收录情况： SCI

摘要： Main conclusionPredominant gene isoforms and expression bias in lipid metabolism pathways are highly conserved between oil-producing Arecaceae crop species coconut and oil palm, but diverge in non-oil-producing species date palm.AbstractCoconut (Cocos nucifera), African oil palm (Elaeis guineensis) and date palm (Phoenix dactylifera) are three major crop species in the Arecaceae family for which genome sequences have recently become available. Coconut and African oil palm both store oil in their endosperms, while date palm fruits contain very little oil. We analyzed fatty acid composition in three coconut tissues (leaf, endosperm and embryo) and in two African oil palm tissues (leaf and mesocarp), and identified 806, 840 and 848 lipid-related genes in 22 lipid metabolism pathways from the coconut, African oil palm and date palm genomes, respectively. The majority of lipid-related genes were highly homologous and retained in homologous segments between the three species. Genes involved in the conversion of pyruvate to fatty acid had a five-to-sixfold higher expression in the coconut endosperm and oil palm mesocarp than in the leaf or embryo tissues based on Fragments Per Kilobase of transcript per Million mapped reads values. A close evolutionary relationship between predominant gene isoforms and high conservation of gene expression bias in the lipid and carbohydrate gene metabolism pathways was observed for the two oil-producing species coconut and oil palm, differing from that of date palm, a non-oil-producing species. Our results elucidate the similarities and differences in lipid metabolism between the three major Arecaceae crop species, providing important information for physiology studies as well as breeding for fatty acid composition and oil content in these crops.

  • 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