玉米粒型与粒重相关性状QTL定位及调控基因研究进展

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Research progress on QTL mapping and regulatory genes related to grain shape and grain weight in maize

LIU Jieshan’，MA Zixu¹，LI Yongsheng²， ZHOU Yuqian²， ZHOU Xiangyan’， ZHOU Wenqi 1，2 （1.Colg tural Sciences，Lanzhou ，China）

Abstract：As the main food crop in China，maize plays a keyrole inensuring national fod security and promoting socialandeconomic development.This studyreviewedtheQTL mapping of grain shapeand grain weight relatedtraits in maize，the keyregulatory genes of grain shape and grain weight in maize and their mechanismof action，and theresearch progressof grain sizeregulation network in maize.The potential genes for improving grain weightandoptimizing grain shape were explored to provide genetic resources for maize grain shape improvement，and the future research was prospected.

Key words： maize；grain shape；grain weight；QTL；gene function

玉米（ZeamaysL.）是中国重要的粮食、经济、饲料三位一体的作物，是禾本目禾本科玉蜀黍属一年生高大草本植物。（剩余27618字）