GENERATION-MEANS ANALYSIS AND QUANTITATIVE TRAIT LOCUS MAPPING OF ANTHRACNOSE STALK ROT GENES IN MAIZE

被引:52
作者
JUNG, M
WELDEKIDAN, T
SCHAFF, D
PATERSON, A
TINGEY, S
HAWK, J
机构
[1] UNIV DELAWARE,DEPT PLANT & SOIL SCI,NEWARK,DE 19717
[2] DUPONT CO INC,EXPTL STN,DEPT AGR PROD,WILMINGTON,DE 19880
[3] TEXAS A&M UNIV,DEPT CROP & SOIL SCI,COLLEGE STN,TX 77843
关键词
RESTRICTION FRAGMENT LENGTH POLYMORPHISM; LINKAGE MAPPING; MULTIPLE REGRESSION; ANTHRACNOSE; MAIZE;
D O I
10.1007/BF00225375
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
A generation-means analysis was performed on two maize populations, each segregating for genes conferring resistance to anthracnose stalk rot (ASR). The populations were derived from a cross of DE811ASR x DE811 and of DE811ASR x LH132. The resistant parent, DE811ASR, was obtained through introgression with MP305 as the donor and DE811 as the recurrent parent. The analysis revealed significant additive effects in both populations and a significant additive x dominant effect in the DE811ASR x DE811 population. Quantitative trait locus (QTL) mapping, using restriction fragment length polymorphism (RFLP)-based molecular markers, indicated a significant QTL on linkage group 4 in both populations. The QTL analysis confirmed additive inheritance in both populations. This work demonstrates a close correspondence between generation-means analysis and discrete observations using molecular markers. Linkage of a genetic marker to genes conferring resistance to ASR will be useful for the introgression of resistance into elite germplasm.
引用
收藏
页码:413 / 418
页数:6
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