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Acta Horticulturae Sinica ›› 2025, Vol. 52 ›› Issue (3): 575-590.doi: 10.16420/j.issn.0513-353x.2024-0105

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

Identification and Expression Analysis of Peach JMJ Histone Demethylase Gene Family

WANG Yunyun1,2, ZHOU Hui2, QIU Keli1, PAN Haifa2, SHENG Yu2, SHI Pei2, XIE Qingmei2, CHEN Hongli2, ZHANG Jinyun2,**(), LI Dahui1,**()   

  1. 1 College of Life Sciences,Anhui Agricultural University,Hefei 230036,China
    2 Key Laboratory of Germplasm Creation and Utilization of Horticultural Crops,Ministry of Agriculture and Rural Affairs,Institute of Horticulture,Anhui Academy of Agricultural Sciences,Hefei 230001,China
  • Received:2024-10-25 Revised:2025-01-14 Online:2025-03-25 Published:2025-03-25
  • Contact: ZHANG Jinyun, LI Dahui

Abstract:

In order to understand the function of histone methylation in growth and response to abiotic stress in peach trees,genome-wide identification of histone demethylase(JMJ)family genes containing the JmjC domain was performed. Twenty-one JMJs were identified in the peach genome,which were divided into five subfamilies according to their phylogenetic relationships. There were significant differences among the members of these families,with exons ranging from 7 to 33,proteins containing 12 conserved domains,and the upstream regions of gene promoters containing different numbers of stress response,hormone response,and developmental regulatory elements. Using PpJMJ5 as bait,a potential interacting protein PpCIPK1 was found through yeast two-hybrid screening library. It was proved that the interaction between PpJMJ5 and PpCIPK1 existed,which may interfere with the interaction between calhomodin and its interacting protein CBL-CIPK to some extent. PpJMJ5 may play an important role in the abiotic stress response of peach trees.

Key words: peach, histone demethylation, abiotic stress, JMJ