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- Title
Genome-Wide Identification of Auxin Response Factors in Peanut (Arachis hypogaea L.) and Functional Analysis in Root Morphology.
- Authors
Luo, Lu; Wan, Qian; Yu, Zipeng; Zhang, Kun; Zhang, Xiurong; Zhu, Suqing; Wan, Yongshan; Ding, Zhaojun; Liu, Fengzhen
- Abstract
Auxin response factors (ARFs) play important roles in plant growth and development; however, research in peanut (Arachis hypogaea L.) is still lacking. Here, 63, 30, and 30 AhARF genes were identified from an allotetraploid peanut cultivar and two diploid ancestors (A. duranensis and A. ipaensis). Phylogenetic tree and gene structure analysis showed that most AhARFs were highly similar to those in the ancestors. By scanning the whole-genome for ARF-recognized cis-elements, we obtained a potential target gene pool of AhARFs, and the further cluster analysis and comparative analysis showed that numerous members were closely related to root development. Furthermore, we comprehensively analyzed the relationship between the root morphology and the expression levels of AhARFs in 11 peanut varieties. The results showed that the expression levels of AhARF14/26/45 were positively correlated with root length, root surface area, and root tip number, suggesting an important regulatory role of these genes in root architecture and potential application values in peanut breeding.
- Subjects
PEANUT breeding; PEANUTS; ARACHIS; FUNCTIONAL analysis; AUXIN; REGULATOR genes
- Publication
International Journal of Molecular Sciences, 2022, Vol 23, Issue 10, p5309
- ISSN
1661-6596
- Publication type
Article
- DOI
10.3390/ijms23105309