首页|干旱胁迫下登木油菜转录组分析

干旱胁迫下登木油菜转录组分析

Transcriptome Analysis of Dengmu Rape(Brassica campestris)under Drought Stress

扫码查看
为分析干旱胁迫下白菜型油菜基因的表达情况,本研究以登木油菜为试验材料,苗期正常灌溉为对照,干旱8 d为处理组.通过分析登木油菜不同水分条件下差异表达的基因,发现在不同水分条件下显著性差异基因共有3 057个,其中显著性差异上调基因1 616个,显著性差异下调基因1 441个.GO注释的显著差异上调基因共7 172个,显著差异下调基因共731个;通过KEGG通路富集分析,发现参与干旱胁迫的上调差异基因富集的通路主要有RNA降解、真核生物核糖体的生物合成、核糖体、嘧啶代谢、嘌呤代谢等,参与干旱胁迫的下调差异基因富集的通路主要有缬氨酸、亮氨酸和异亮氨酸降解、植物激素信号转导、光合作用、亚油酸、α-亚麻酸代谢等;发现转换SNP位点共285 555个,颠换SNP位点共485 985个.本研究结果表明干旱胁迫下登木油菜基因表达有差异,丰富了白菜型油菜的基因信息资源库,为后期分子育种奠定基础.
In order to explore the gene expression of Brassica campestris L.under drought stress,Dengmu rape was used as the test material,normal irrigation at seedling stage as the control,and drought for 8 days as the treatment group.By analyzing the differentially expressed genes under different water conditions in Dengmu rape,we found that there were 3 057 significantly different genes under different water conditions,including 1 616 significantly up-regulated genes and 1 441 significantly down regulated genes.There were 7 172 up-regulated genes and 731 down regulated genes in GO annotation;through the enrichment analysis of KEGG pathway,we found that RNA degradation,eukaryotic ribosome biosynthesis,ribosome,pyrimidine metabolism and purine metabolism were the main pathways involved in the enrichment of up-regulated differential genes under drought stress.The main path-ways involved in the down-regulation of differential gene enrichment under drought stress were valine,leucine and isoleucine degradation,plant hormone signal transduction,photosynthesis,linoleic acid,α-linolenic acid metabolism,etc.;a total of285 555 transformed SNPs and 485 985 transversed SNPs were found.These results indi-cated that there were differences in gene expression of Dengmu rape under drought stress,which enriched the gene information database of Brassica campestris L.and laid a foundation for molecular breeding in later stage.

RapeDrought stressTranscriptome analysis

郭素平、袁燕、米马玉珍、程鲁豪、胡继琰、强欢欢、旦巴

展开 >

西藏农牧学院,高原作物分子育种实验室,林芝,860000

白菜型油菜 干旱胁迫 转录组分析

西藏农牧学院研究生创新计划项目

VJS2020-10

2024

分子植物育种
海南省生物工程协会

分子植物育种

CSTPCD北大核心
影响因子:0.765
ISSN:1672-416X
年,卷(期):2024.22(1)
  • 15