Genetic and Correlation Analysis of the Panicle Traits of Recombinant Inbred Lines Derived from an Indica/Japonica Rice Cross

doi:10.7668/hbnxb.2011.03.016

Abstract

Abstract: Genetic and correlation analysis of the four panicle traits,which included panicle length(PL),grain number per panicle(GNP),primary branch number(PBN) and secondary branch number(SBN),were conducted,with a set of recombinant inbred lines(RILs) derived from a cross of Japonica rice cultivar Nipponbare and a large panicle indica rice 1126.Correlation analysis showed that all the traits were significant positive correlated to each other at the 1% level except PL and PBN.Genetic analysis showed that the trait of grain number per panicle(GNP) was controlled by two major genes with overlap additive effect,and both of panicle length(PL) and primary branch number(PBN) were controlled by two major genes additive plus polygenes,however,secondary branch number(SBN) was controlled by four major genes with each two of equal additive plus polygenes.All the four panicle traits were mainly governed by major genes.

Key words: Rice, Panicle traits, Genetic model, Correlation analysis, Recombinant inbred line

CLC Number:

S511.03

KUANG Yong, LUO Li-hua, ZHOU Qian-qian, HE Yun-li, FAN Xi-lin, XIAO Ying-hui. Genetic and Correlation Analysis of the Panicle Traits of Recombinant Inbred Lines Derived from an Indica/Japonica Rice Cross[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2011, 26(3): 72-78. doi: 10.7668/hbnxb.2011.03.016.

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