Characterization and identification of the candidate gene of rice thermo-sensitive genic male sterile gene tms5 by mapping.
Planta
; 225(2): 321-30, 2007 Jan.
Article
em En
| MEDLINE
| ID: mdl-16896793
ABSTRACT
Previous research has demonstrated that the thermo-sensitive genic male-sterile (TGMS) gene in rice was regulated by temperature. TGMS rice is important to hybrid rice production because the application of the TGMS system in two-line breeding is cost-effective, simple, efficient and overcomes the limitations of the cytoplasmic male sterility (CMS) system. AnnongS is the first discovered and deeply studied TGMS rice line in China. Previous studies have suggested that AnnongS-1 and Y58S, two derivative TGMS lines of AnnongS, were both controlled by a single recessive gene named tms5, which was genetically mapped on chromosome 2. In the current study, three populations (AnnongS-1 x Nanjing11, Y58S x Q611, and Y58S x Guanghui122) were developed to investigate the tms5 gene molecular map. Analysis of recombination events of sterile samples, utilizing 125 probes covering the tms5 region, suggested that the tms5 gene was physically mapped to a 19 kb DNA fragment between two markers, 4039-1 and 4039-2, located on the BAC clone AP004039. Following the construction of a physical map between the two markers, ONAC023, a member of the NAC (NAM-ATAF-CUC-related) gene family, was identified as the candidate of the tms5 gene.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Oryza
/
Mapeamento Cromossômico
/
Genes de Plantas
/
Cromossomos de Plantas
Tipo de estudo:
Diagnostic_studies
Idioma:
En
Revista:
Planta
Ano de publicação:
2007
Tipo de documento:
Article
País de afiliação:
China
País de publicação:
ALEMANHA
/
ALEMANIA
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DE
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DEUSTCHLAND
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GERMANY