Inheritance and genetic mapping of resistance to Asian soybean rust in cultivar TMG 803

被引：1

作者：

Matsuo, Eder ^{[1
]}

Sediyama, Tuneo ^{[2
]}

Brommonschenkel, Sergio Herminio ^{[3
]}

Cruz, Cosme Damiao ^{[4
]}

机构：

[1] Univ Fed Vicosa, Inst Ciencias Exatas & Tecnol, BR-38810000 Rio Paranaiba, MG, Brazil

[2] Univ Fed Vicosa, Dept Fitotecn, BR-36570900 Vicosa, MG, Brazil

[3] Univ Fed Vicosa, Dept Fitopatol, BR-36570900 Vicosa, MG, Brazil

[4] Univ Fed Vicosa, Dept Biol Geral, BR-36570900 Vicosa, MG, Brazil

来源：

CROP BREEDING AND APPLIED BIOTECHNOLOGY | 2014年 / 14卷 / 04期

关键词：

Glycine max; breeding; Phakopsora pachyrhizi; molecular marker; SSR marker; PHAKOPSORA-PACHYRHIZI; CONFERRING RESISTANCE; IDENTIFICATION; MARKERS;

D O I：

10.1590/1984-70332014v14n4a33

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

This study analyzed the inheritance and identified microsatellite markers linked to the resistance gene to Phakopsora pachyrhizi in soybean cultivar TMG 803. Hybridization between the cultivars TMG 803 and BRS Valiosa RR was performed to obtain F-1 progenies and the F-2 population. The response of the parents 'TMG 803' and 'BRS Valiosa RR' to P. pachyrhizi was, respectively, resistant and susceptible, and among the 116 F-2 plants, 93 were resistant and 23 susceptible, under natural infection and field conditions. It was found that the resistance of cultivar TMG 803 is controlled by one gene with complete dominance, mapped as resistance locus Rpp4 of linkage group G. Of the 16 tested, one microsatellite marker, sc21_3420, was completely linked to the resistance gene (distance 0.0cM) and the favorable allelic form was present in cultivar TMG 803, which may therefore be useful in assisted selection in segregating populations.

引用

页码：209 / 215

页数：7

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