Indian Society of Genetics & Plant Breeding
Kunmingxiaobaigu' rice (Oryza sativa L.) has two major
genes effectively manipulating the grain fertility. Four
cultivars (Lijing 2, Xintuanheigu, Xiaomagu and Diahjing
8) have one or two loci of major gene manipulating the
grain fertility. There are some difference on cold tolerance
between Kunmingxiaobaigu and Lijing 2. The gene for
cold tolerance at booting stage was further mapped on
chromosome 5 between RM 7452 and RM 31 with genetic
distances of 4.8 cM and 8.0 cM, respectively. This gene
explained 10.50% of phenotypic variance and 5.10% of
phenotypic variance of fUlly filled grains and was tentatively
designated as Ctb(t).
Keywords: Rice, genetic analysis, cold tolerance, booting stage
Year: 2006
Volume: 66
Issue: 2
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906
Zeng Yawen and Pu Xiaoying info_circle
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