@Article{phyton.2024.048151,
AUTHOR = {Jing Wang, Wenqing Xiao, Qingnan Wang, Xu Wang, Bin Jiang, Yangchun Han, Yang Sun},
TITLE = {Analysis of Intraspecies Diversity of Rice Reveals Variation Patterns of Oryza sativa Basic Leucine Zippers},
JOURNAL = {Phyton-International Journal of Experimental Botany},
VOLUME = {93},
YEAR = {2024},
NUMBER = {5},
PAGES = {859--873},
URL = {http://www.techscience.com/phyton/v93n5/56739},
ISSN = {1851-5657},
ABSTRACT = {The basic leucine zipper (bZIP) is an important class of transcription factors in plants, playing a critical role in plant growth and development and responses to biotic and abiotic stress. Due to gene presence/absence variations, it is limited to identify <i>bZIP</i> genes based on the reference genome. Therefore, we performed the <i>bZIP</i> gene family analysis in the rice pan-genome. By employing a rice pan-genome, ninety-four <i>OsbZIPs</i> (72 core genes and 22 variable genes) were identified and divided into 11 groups in a phylogenetic tree. Based upon Ka/Ks values in 33 accessions, <i>OsbZIPs</i> were subjected to different selection pressures during domestication. The analysis of the effects of structural variations (SVs) on gene expression, gene structure, and conserved domains showed that SVs could significantly alter the expression levels of certain <i>OsbZIPs</i>, leading to gene truncation and the emergence of numerous atypical genes. Thirty-four differentially expressed <i>OsbZIPs</i> were identified by analyzing RNA-seq data of the <i>Xanthomonas oryzae</i> pv. <i>oryzae</i> (<i>Xoo</i>) infection susceptible (IR24) and resistant (IRBB67) lines under high temperature, and by counting the number of differentially expressed <i>OsbZIP</i>s in different subgroups. These <i>OsbZIPs</i> were found to respond to <i>Xoo</i> infection at an early stage and may not be involved in the mechanism of Xa4 and Xa7 resistance to <i>Xoo</i>. The multiple variation patterns of <i>OsbZIP</i> genes provide new insights into the <i>OsbZIP</i> genes in rice. These results provide new resources and offer new directions for functional studies of <i>OsbZIPs</i>.},
DOI = {10.32604/phyton.2024.048151}
}