生物
转录组
基因
同步
遗传学
MYB公司
基因组
基因表达
作者
Nepolean Thirunavukkarasu,Firoz Hossain,Sweta Mohan,Kaliyugam Shiriga,Swati Mittal,R.C. Sharma,Rita Singh,H. S. Gupta
出处
期刊:PLOS ONE
[Public Library of Science]
日期:2013-08-06
卷期号:8 (8): e70433-e70433
被引量:60
标识
DOI:10.1371/journal.pone.0070433
摘要
Waterlogging causes extensive damage to maize crops in tropical and subtropical regions. The identification of tolerance genes and their interactions at the molecular level will be helpful to engineer tolerant genotypes. A whole-genome transcriptome assay revealed the specific role of genes in response to waterlogging stress in susceptible and tolerant genotypes. Genes involved in the synthesis of ethylene and auxin, cell wall metabolism, activation of G-proteins and formation of aerenchyma and adventitious roots, were upregulated in the tolerant genotype. Many transcription factors, particularly ERFs, MYB, HSPs, MAPK, and LOB-domain protein were involved in regulation of these traits. Genes responsible for scavenging of ROS generated under stress were expressed along with those involved in carbohydrate metabolism. The physical locations of 21 genes expressed in the tolerant genotype were found to correspond with the marker intervals of known QTLs responsible for development of adaptive traits. Among the candidate genes, most showed synteny with genes of sorghum and foxtail millet. Co-expression analysis of 528 microarray samples including 16 samples from the present study generated seven functional modules each in the two genotypes, with differing characteristics. In the tolerant genotype, stress genes were co-expressed along with peroxidase and fermentation pathway genes.
科研通智能强力驱动
Strongly Powered by AbleSci AI