文献类型：期刊文献

英文题名：Genome-Wide Identification and Transcriptional Analysis of the MYB Gene Family in Pearl Millet (Pennisetum glaucum)

作者：Lin, Miaohong[1];Dong, Zhuoyan[1];Zhou, Hongkai[1];Wu, Guanyu[1];Xu, Liang[1];Ying, Sheng[2];Chen, Miao[1]

机构：[1]Guangdong Ocean Univ, Coll Agr Sci, Zhanjiang 524091, Peoples R China;[2]Noble Res Inst LLC, 2510 Sam Noble Pkwy, Ardmore, OK 73401 USA

年份：2023

卷号：24

期号：3

外文期刊名：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES

收录：SCI-EXPANDED(收录号：WOS:000930890800001)、、WOS

语种：英文

外文关键词：pearl millet; PgMYB gene; abiotic stress; transcriptional analysis

外文摘要：The MYB gene family widely exists in the plant kingdom and participates in the regulation of plant development and stress response. Pearl millet (Pennisetum glaucum (L.) R. Br.), as one of the most important cereals, is not only considered a good source of protein and nutrients but also has excellent tolerances to various abiotic stresses (e.g., salinity, water deficit, etc.). Although the genome sequence of pearl millet was recently published, bioinformatics and expression pattern analysis of the MYB gene family are limited. Here, we identified 208 PgMYB genes in the pearl millet genome and employed 193 high-confidence candidates for downstream analysis. Phylogenetic and structural analysis classified these PgMYBs into four subgroups. Eighteen pairs of segmental duplications of the PgMYB gene were found using synteny analysis. Collinear analysis revealed pearl millet had the closest evolutionary relationship with foxtail millet. Nucleotide substitution analysis (Ka/Ks) revealed PgMYB genes were under purifying positive selection pressure. Reverse transcription-quantitative PCR analysis of eleven R2R3-type PgMYB genes revealed they were preferentially expressed in shoots and seeds and actively responded to various environment stimuli. Current results provide insightful information regarding the molecular features of the MYB family in pearl millet to support further functional characterizations.