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Acta Horticulturae Sinica ›› 2025, Vol. 52 ›› Issue (1): 111-122.doi: 10.16420/j.issn.0513-353x.2023-0786

• Genetic & Breeding·Germplasm Resources·Molecular Biology • Previous Articles     Next Articles

Identification of Long Cowpea Lhc Gene Family and Its Expression Analysis Under Salt Stress

WANG Shanshan, GUO Rui, HE Ling, WU Chunhong, CHEN Chanyou, WAN Heping**(), ZHAO Huixia**()   

  1. Hubei Province Engineering Research Center for Legume Plants,School of Life Sciences,Jianghan University,Wuhan 430056,China
  • Received:2024-09-05 Revised:2024-10-05 Online:2025-01-25 Published:2025-01-19
  • Contact: WAN Heping, ZHAO Huixia

Abstract:

Light-harvesting chlorophyll a/b-binding proteins(Lhc)can directly affect photosynthetic efficiency and crop yield. To systematically study the characteristics of the Lhc gene family in long cowpea(Vigna unguiculata subsp. sesquipedalis)and their expression under salt stress,27 Lhc family members were identified from the cowpea genome using Arabidopsis Lhc protein sequences as seed sequences,combined with the conserved domain PF00504. Analyses were conducted on their physicochemical properties,gene structure,phylogenetic relationships,and synteny. The analysis indicated that the VuLhc promoter regions were enriched with light-responsive elements,significantly more than other cis-acting elements. This suggested that the VuLhc gene might be involved in the photoregulation of long cowpea,potentially influencing its growth and development. Additionally,qRT-PCR was employed to examine the expression patterns of 10 VuLhc genes under salt stress,revealing that 9 of them were upregulated,indicating their potential significant role in cowpea’s response to salt stress.

Key words: long cowpea, light-harvesting chlorophyll a/b-binding protein, VuLhc gene family, expression pattern, salt stress