Genetic Linkage of Genes for a Thermo-sensitive Genic Male Sterility in Maize: The genetic analysis of an TGMS line Qiong-6ms in maize

Thermo-sensitive genic male sterile (TGMS) lines can provide new options for hybrid seed production using "two-line" system. A set of F₂ and BC₁ populations derived from the cross between Qiong-6ms and Dan958 were employed to analyze the inheritance of a TGMS line Qiong-6ms and map the TGM...

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Published inGenes & genomics Vol. 30; no. 6
Main Authors Fu, Zhi-Yuan (China Agricultural University, Beijing, China), Xie, Hui-Ling (College of Agronomy Henan Agricultural University Zhengzhou, China), Li, Jian-Sheng (China Agricultural University, Beijing, China), Hu, Yan-Min (College of Agronomy Henan Agricultural University Zhengzhou, China), Liu, Zong-Hua (College of Agronomy Henan Agricultural University Zhengzhou, China), He, Zhong-You (Hainan Agricultural Institutes Haikou, China), Tang, Ji-Hua (College of Agronomy Henan Agricultural University Zhengzhou, China), E-mail: tangjihua1@163.com
Format Journal Article
LanguageEnglish
Published 01.12.2008
Subjects
genetic mapping
GENETIC MARKERS
MARCADORES GENETICOS
MARQUEUR GENETIQUE
SSR
TGMS
ZEA MAYS
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Summary:Thermo-sensitive genic male sterile (TGMS) lines can provide new options for hybrid seed production using "two-line" system. A set of F₂ and BC₁ populations derived from the cross between Qiong-6ms and Dan958 were employed to analyze the inheritance of a TGMS line Qiong-6ms and map the TGMS genes in maize. The results demonstrated that the sterility of Qiong-6ms was governed by two duplicative recessive genes, named tms1 and tms2. The gene tms1 was mapped to chromosome 5 linked with the SSR markers umc1355, umc2302 and umc1784 at a distance of 3.0 cM, 1.3 cM and 0.9 cM respectively; while tms2 was localized on chromosome 3, linked with SSR markers bnlg1605 (0.5 cM) and umc2050 (4.2 cM). These markers, which are tightly linked with the tms1 and tms2 genes, will be helpful for marker assisted selection of TGMS lines in maize.
Bibliography:2009001189
A50
ISSN:1976-9571
2092-9293