Work

Genome-Wide Analysis and Expression Profiles of AhCOLs Family in Peanut (Arachis hypogaea L.)

Year: 2025

Type: article

Abstract: The CONSTANS-like (COL) gene family plays critical roles in plant growth, development, stress responses, and light signal transduction. However, its functions in peanut (Arachis hypogaea) remain poorly understood. In this study, we identified 18 AhCOL genes in the peanut genome, all localized in the nucleus. Phylogenetic analysis classified these genes into three subfamilies, with Group I containing eight members and Groups II and III each comprising five. Conserved domain analysis revealed that all AhCOL proteins possess at least one B-box and one CCT domain. Most of the AhCOL members in peanuts contain a large number of ABA and MeJA elements. Additionally, some members have low-temperature response elements, anaerobic induction, circadian control, and defense stress elements. Expression profiling indicated that most AhCOL genes are abundantly expressed in leaves, flowers, and fruit needles. Notably, genes such as AhCOL4, AhCOL8, AhCOL13, and AhCOL14 were upregulated under light induction and mechanical stress, highlighting their involvement in pod development. AhCOL1 interacts with AhNF-YC1, while AhCOL3 interacts with both AhNF-YC1 and AhCOP1 proteins. This study identifies key AhCOL genes implicated in light and mechanical stress responses, offering insights into their potential roles in peanut flowering and abiotic stress tolerance.

Source: International Journal of Molecular Sciences

DOI: 10.3390/ijms26073404

Authors: Wei Wang, Xiaoyu Liu, Xiaoyu Liu, Che Liu, Xiaoqin Liu, Xiaoqin Liu

Institutions: Peking University, Shandong Agricultural University

Language: English

Topic: Peanut Plant Research Studies

Subfield: Plant Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: gold

Estimated APC paid: $3,499