Genetic Effects of Directional Selection on Seed Setting Rate in Hybrid offspring of Autotetraploid

来源 :2007年国际多倍体杂种优势及表观遗传学大会 | 被引量 : 0次 | 上传用户：fugoolisk

【摘要】

：

【作者】

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LI Ya-juan FANG San-hu LU Yong-gen LI Jin-quan LIU Xiang-dong

【机构】

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South China Agricultural University,Guangzhou China

【出处】

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2007年国际多倍体杂种优势及表观遗传学大会

【发表日期】

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2007年12期

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　　Autotetraploid rice bears stronger biological heterosis than diploid rice,while its low seed setting rate has effects on wide utilization in rice breeding.Through studies in several successive years,some autotetraploid rice crosses with high seed setting rate were obtained.To investigate genetics of seed setting rate in autotetraploid rice,genetic effects of directional selection on seed setting rate and correlation between seed setting rate and agronomy traits were studied by analyzing the data of successive F1-F6 offspring,which were derived from autotetraploid hybrids Guangluai 4-4xxL202-4x with high seed setting rate.

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Genetic Effects of Directional Selection on Seed Setting Rate in Hybrid offspring of Autotetraploid

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