四川林业科技2025，Vol.46Issue(5)：18-26,9.DOI:10.12172/202506030004
濒危植物闽楠RAV基因家族的鉴定与分析
Identification and analysis of RAV gene family of endangered species Phoebe bournei
摘要
Abstract
Phoebe bournei,a rare and endangered endemic tree species in China,holds significant importance for ecological protection and economic utilization through genetic improvement and stress resistance mechanism research.Based on the whole-genome data of P.bournei,this study systematically identified and analyzed the physicochemical properties,structural characteristics,and expression profiles of the RA V gene family using bioinformatics approaches.The results showed that five RAV gene family members(PbRAV01-PbRAV05)were identified in P.bournei,all localized in the nucleus,hydrophilic,and dispersedly distributed on five chromosomes,exhibiting structural diversity and tissue expression specificity.These genes were enriched in light-responsive,drought-responsive,and hormone-responsive elements,suggesting their involvement in stress regulation and hormone signal transduction.Intraspecific collinearity analysis revealed a segmental duplication event between PbRAV02 and PbRAV05,while interspecific collinearity indicated a closer genetic relationship between P.bournei and rice RAV genes.Phylogenetic tree analysis classified the genes into three subfamilies,among which PbRAV03 and PbRAV04 in Subfamily A were closely evolutionarily related to Arabidopsis AtRAV03.Tissue expression analysis showed thatPbRAV05 was highly expressed in roots,stems,and leaves,while PbRAV02 was preferentially expressed in roots.This study provides a theoretical basis for molecular breeding and stress resistance mechanism analysis of P.bournei,and offers new insights into the phylogenetic research of Magnoliids.关键词
闽楠/RAV基因家族/全基因组鉴定/表达分析Key words
Phoebe bournei/RAV gene family/Genome-wide identification/expression analysis引用本文复制引用
李艳..濒危植物闽楠RAV基因家族的鉴定与分析[J].四川林业科技,2025,46(5):18-26,9.基金项目
福建省林业科技项目(2022FJK24) （2022FJK24）
