biostudies-literatureZhu XNational Tropical Plants Germplasm Resource CenterNational Germplasm Repository for Fujian-Taiwan Characteristic CropsBasic Scientific Research Project of Fujian Public Welfare Scientific Research InstituteNatural Science Foundation Project of Zhangzhou City393https://www.ebi.ac.uk/biostudies/studies/S-EPMC12931019biostudies-literatureUnknown26(1)<h4>Background</h4>Green jujube (Ziziphus mauritiana) is an economically important fruit tree with exceptional nutritional and medicinal values, particularly in tropical undeveloped regions. Light-harvesting chlorophyll a/b-binding proteins (LHC) holds crucial positions in plant photosystem, which is essential for the climate adaptability of green jujube. Nevertheless, comprehensive genome-wide investigation of LHC family genes have never been full studied in genus Ziziphus.<h4>Results</h4>Herein, we identified respectively 72 and 72 putative LHC genes both in wild and cultivated green jujube based on the haplotype-resolved chromosome-level genomes. These genes were classified into four subfamilies (LHCa, LHCb, ELIP, and PsbS) according to phylogenetic relationships and conserved domains. BMC plant biologyComparative genomics of light harvesting chlorophyll a/b binding protein (LHC) family in green jujube (Ziziphus mauritiana) reveal the effect of domestication based on haplotype-resolved genome.PMC129310192025R10280022025R11010015-3NTPGRC2025-032ZZ2025JH09Li HWu MJiang FChang PHuang HWu SZhu XfalseComparative genomics of light harvesting chlorophyll a/b binding protein (LHC) family in green jujube (Ziziphus mauritiana) reveal the effect of domestication based on haplotype-resolved genome.<h4>Background</h4>Green jujube (Ziziphus mauritiana) is an economically important fruit tree with exceptional nutritional and medicinal values, particularly in tropical undeveloped regions. Light-harvesting chlorophyll a/b-binding proteins (LHC) holds crucial positions in plant photosystem, which is essential for the climate adaptability of green jujube. Nevertheless, comprehensive genome-wide investigation of LHC family genes have never been full studied in genus Ziziphus.<h4>Results</h4>Herein, we identified respectively 72 and 72 putative LHC genes both in wild and cultivated green jujube based on the haplotype-resolved chromosome-level genomes. These genes were classified into four subfamilies (LHCa, LHCb, ELIP, and PsbS) according to phylogenetic relationships and conserved domains. 2026-01-01T00:00:00Z2026 Jan2026-07-09T12:20:11.02Z2026-07-09T11:17:29.031ZS-EPMC129310194161817110.1186/s12870-026-08189-3