种子2026，Vol.45Issue(1)：1-11,11.DOI:10.16590/j.cnki.1001-4705.2026.01.001
烟草PILS基因家族鉴定及表达模式分析
Identification and Expression Pattern Analysis of PILS Gene Family in Nicotiana tobacum
摘要
Abstract
PIN-LIKE(PILS)proteins are a type of auxin transport proteins,of which specific localiza-tion on the cell membrane determines the direction of auxin flow between cells and the distribution of auxin content.To explore the functions of the PILS gene family of Nicotiana tabacum,using common Nicotiana tabacum as the research object,the NtPILS gene family was systematically identified at the whole-genome level,and its evolutionary relationship,physicochemical properties,chromosomal lo-calization,promoter cis-acting elements,tissue expression patterns,and response patterns under non-biological stress were analyzed using bioinformatics methods.The results showed that a total of 16 NtPILS genes were identified,among which 15 were distributed on 9 chromosomes(3,4,17,etc.),and another 1 was without a clear chromosomal localization.The transmembrane structure prediction indicated that the NtPILS protein contained 7 to 10 transmembrane structures.The promoter element analysis revealed that the NtPILS gene was rich in non-biological stress response,light response,and hormone response elements.The 14 NtPILS genes showed tissue-specific expression in different or-gans of Nicotiana tabacum(roots,stems,leaves,flowers,etc.).Most of the NtPILS genes respon-ded to low temperature,drought and salt stress.关键词
普通烟草/生长素/PILS基因家族/非生物胁迫Key words
Nicotiana tobacum/Auxin/PILS gene family/abiotic stress分类
农业科技引用本文复制引用
刘翀,梁书苑,王飞雁,刘洋,鲍亚宁..烟草PILS基因家族鉴定及表达模式分析[J].种子,2026,45(1):1-11,11.基金项目
贵州省科技计划项目"贵州省烟草提质增效全省重点实验室"(黔科合平台ZSYS[2025]028) （黔科合平台ZSYS[2025]028）
