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《Acta Genetica Sinica》 2001-08
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Construction of a Genetic Map and Location of Quantitative Trait Loci for Yield Component Traits in Maize by SSR Markers

XIANG Dao-Quan, CAO Hai-He, CAO Yong-Guo, YANG Jun-Pin, HUANG Lie-Jian, WANG Shou-Cai, DAI Jing-Rui (Dept. of Plant Genetics and Breeding ,China Agricultural University, Beijing 100094, China; Sichuan Academy of Agricultural Science, Chengdu 610066, China  
Using 230 F2:3 lines derived from the hybrid of ND3138, a SSR genetic linkage map of maize (Zea mays L.) was constructed on which 80 markers distribute among 10 linkage groups and spanning maize genome about 2033.4cM with average distance between markers being 25.42cM. The 230 2:3 lines were grown in a random. design of one-row plot with three replication, and evaluated for ear length, bared tip, ear diameter, row number, kernel number row-1, one thousand grains weight ear weight and grain weight plant-1. With interval mapping procedure, 30 QTLs were revealed for all traits,which distributed on 9 of 10 chromosomes of maize except chromosome 6 and accounted for from 9.5% to 55.3% of the total phenotypic variation. Genetic effects and gene action were also determined.
【Fund】: 国家自然科学基金(No.39893350) &&
【CateGory Index】: Q943
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