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首页> 美国卫生研究院文献>Scientific Reports >Breeding and study of two new photoperiod- and thermo-sensitive genic male sterile lines of polyploid rice (Oryza sativa L.)
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Breeding and study of two new photoperiod- and thermo-sensitive genic male sterile lines of polyploid rice (Oryza sativa L.)

机译：两种新的多倍体水稻光周期和热敏性雄性不育系的选育与研究

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摘要

Male sterile lines play an important role in the utilization of heterosis. To explore and exploit the heterosis of polyploid hybrid rice, two photoperiod- and thermo-sensitive genic male sterile lines of polyploid rice, PS006 and PS012, were bred via chromosome doubling, complex hybridization and self-breeding. The characteristics of these two lines, including the agronomic traits, growth, development, fertility transformation and combining ability, were investigated. Both lines had good agronomic characteristics and flowering habits, a high outcrossing rate, obvious fertility alterations and good combining abilities. Their hybrids showed strong heterosis and great potential for increasing rice productivity and quality. The new polyploid rice photoperiod- and thermo-sensitive genic male sterile lines will provide material for further research into polyploidy and hybrid vigour in rice and promote the exploitation of polyploid hybrid rice.
机译：雄性不育系在杂种优势的利用中起重要作用。为了探索和利用多倍体杂交水稻的杂种优势，通过染色体加倍，复杂杂交和自繁育，培育了两个对光敏和热敏感的多倍体水稻雄性不育系PS006和PS012。研究了这两个品系的特征，包括农艺性状，生长，发育，育性转化和结合能力。两种品系均具有良好的农艺性状和开花习性，异交率高，育性变化明显，配合力强。他们的杂种表现出很强的杂种优势，并具有提高水稻产量和品质的巨大潜力。新的多倍体水稻光周期和热敏性雄性不育系将为水稻多倍体和杂种优势的进一步研究提供材料，并促进多倍体杂交稻的开发。

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