A quantitative trait locus for cold tolerance at the booting stage on rice chromosome 8.
Theor Appl Genet
; 115(5): 593-600, 2007 Sep.
Article
em En
| MEDLINE
| ID: mdl-17657471
ABSTRACT
A quantitative trait locus (QTL) for cold tolerance at the booting stage of a cold-tolerant rice breeding line, Hokkai-PL9, was analyzed. A total of 487 simple sequence repeat (SSR) markers distributed throughout the genome were used to survey for polymorphism between Hokkai-PL9 and a cold-sensitive breeding line, Hokkai287, and 54 markers were polymorphic. Single marker analysis revealed that markers on chromosome 8 are associated with cold tolerance. By interval mapping using an F(2) population between Hokkai-PL9 and Hokkai287, a QTL for cold tolerance was detected on the short arm of chromosome 8. The QTL explains 26.6% of the phenotypic variance, and its additive effect is 11.4%. Substitution mapping suggested that the QTL is located in a 193-kb interval between SSR markers RM5647 and PLA61. We tentatively designated the QTL as qCTB8 (quantitative trait locus for cold tolerance at the booting stage on chromosome 8).
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Oryza
/
Adaptação Fisiológica
/
Temperatura Baixa
/
Cromossomos de Plantas
/
Locos de Características Quantitativas
Idioma:
En
Revista:
Theor Appl Genet
Ano de publicação:
2007
Tipo de documento:
Article
País de afiliação:
Japão