瓜类作物株型性状基因调控机制与育种研究进展OA

Cucurbit crops are important vegetable crops species with economic value in the world.Plant architecture traits determines planting density,cultivation management,adaptability to mechanized operations,and ultimately,yield and quality.Although extensive research on plant architecture regulatory has been conducted in model plants such as Arabidopsis,rice and maize,the understanding of regulatory mechanisms in cucurbits remains insufficient.This paper systematically reviews the research progress on plant architecture regulation in major cucurbit crops,including cucumber,watermelon,melon,and pumpkin.It covers key regulatory genes for architectural traits such as internode length,branching,determinant/indeterminant growth habit,leaf angle,leaf morphology,leaf size,and hypocotyl length.This review also delineates the intricate regulatory networks in cucurbits,which involve cross-talk among multiple phytohormone pathways such as gibberellin,auxin,and brassinosteroid.Furthermore,it examines how photoreceptors and temperature-responsive factors modulate hormone homeostasis,thereby influencing plant plasticity.Ultimately,these mechanistic insights underpin molecular design breeding by enabling the rapid creation of novel compact-architecture germplasm through modern molecular breeding and gene editing technologies.In the future,integrating multi-omics data on architecture regulation with smart breeding technologies will accelerate the development of new cucurbit varieties adapted to high-density planting,mechanized harvesting,and protected cultivation,thereby driving industry improvement in both quality and eddiciency.