Whole-Genome Identification of APX and CAT Gene Families in Cultivated and Wild Soybeans and Their Regulatory Function in Plant Development and Stress Response.
Muqadas AleemSaba AleemIram SharifMaida AleemRahil ShahzadMuhammad Imran KhanAmina BatoolGulam SarwarJehanzeb FarooqAzeem IqbalBasit Latief JanPrashant KaushikXian-Zhong FengJavaid Akhter BhatParvaiz AhmadPublished in: Antioxidants (Basel, Switzerland) (2022)
Plants coevolved with their antioxidant defense systems, which detoxify and adjust levels of reactive oxygen species (ROS) under multiple plant stresses. We performed whole-genome identification of ascorbate peroxidase (APX) and catalase (CAT) families in cultivated and wild soybeans. In cultivated and wild soybean genomes, we identified 11 and 10 APX genes, respectively, whereas the numbers of identified CAT genes were four in each species. Comparative phylogenetic analysis revealed more homology among cultivated and wild soybeans relative to other legumes. Exon/intron structure, motif and synteny blocks are conserved in cultivated and wild species. According to the Ka/Ks value, purifying selection is a major force for evolution of these gene families in wild soybean; however, the APX gene family was evolved by both positive and purifying selection in cultivated soybean. Segmental duplication was a major factor involved in the expansion of APX and CAT genes. Expression patterns revealed that APX and CAT genes are differentially expressed across fourteen different soybean tissues under water deficit (WD), heat stress (HS) and combined drought plus heat stress (WD + HS). Altogether, the current study provides broad insights into these gene families in soybeans. Our results indicate that APX and CAT gene families modulate multiple stress response in soybeans.
Keyphrases
- heat stress
- genome wide identification
- genome wide
- transcription factor
- bioinformatics analysis
- genetic diversity
- genome wide analysis
- copy number
- reactive oxygen species
- dna methylation
- heat shock
- gene expression
- dna damage
- poor prognosis
- single cell
- cell death
- oxidative stress
- nitric oxide
- climate change
- anti inflammatory
- arabidopsis thaliana