Genome-wide identification of GATA family in rice and analysis of its responses to drought and salt stress
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College of Biological Science and Technology,Hunan Agricultural University,Changsha 410128,China

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S511.503.4

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    Abstract:

    Rice,as a staple crop for over half of the global population,faces severe constraints in growth and development due to the drought and salt stress.Mining key regulatory genes for stress resistance in rice and deciphering their molecular mechanisms have become critical strategies for breeding high-yield and stable-yield varieties with changes in global climate intensifying.A genome-wide identification of the GATA transcription factor family was conducted and their characteristics of responding to stress were investigated to systematically identify core drought-resistant and salt-tolerant genes in rice.The results showed that 27 OsGATA genes were distributed across 12 chromosomes of rice and classified into 6 subfamilies (I-VI),with subfamily IV accounting for the highest proportion(29.6%).Members within the same subfamily exhibited conserved motif compositions (CX?CX??-??CX?C).The results of cross-species collinearity analysis showed that there were 18 homologous gene pairs between rice and maize (Zea mays RefGen_v4),indicating that the evolutionary expansion of the GATA family in monocots is through ancestral gene duplication.The results of tissue-specific expression profiles showed that OsGATA17 and OsGATA26 are highly expressed in most tissues,with the expression of latter displaying particularly prominent in the shoot apical meristem (SAM).The results of qRT-PCR validation showed that OsGATA5OsGATA8,and OsGATA13 were specifically upregulated under the drought stress,while OsGATA18 was significantly suppressed under the salt stress.It is indicated that the rice GATA family regulates the responses to abiotic stress with spatiotemporal-specific patterns of gene expression.It will provide critical targets for studying the functions of stress-resistance genes.

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彭雨杏,王婉莹,王淋骁,詹萌,韩飞宇,吴翰洋. Genome-wide identification of GATA family in rice and analysis of its responses to drought and salt stress[J]. Jorunal of Huazhong Agricultural University,2025,44(4):88-101.

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History
  • Received:March 04,2025
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  • Online: July 24,2025
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