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首页> 外文期刊>Journal of the Japanese Society for Horticultural Science >Relationship between nuclear genome construction and the plastome-genome incompatibility of progenies from intra- and inter-ploid cross of evergreen azaleas x Rhododendron japonicum f. flavum.
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Relationship between nuclear genome construction and the plastome-genome incompatibility of progenies from intra- and inter-ploid cross of evergreen azaleas x Rhododendron japonicum f. flavum.

机译：常绿杜鹃花x杜鹃花f的倍数内和倍数杂交后代的核基因组构建与质子组-基因组不相容性的关系。 黄酮。

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摘要

In intersubgeneric crosses of diploid evergreen azaleas (EV) x diploid Rhododendron japonicum f. flavum (JP), many progenies become albino as a result of plastome-genome incompatibility between a plastid genome from EV and a nuclear genome from JP. To clarify the mechanism of the incompatibility, inter- and intra-ploid crosses of diploid (2x) EV x diploid (2x) JP, tetraploid (4x) EV x tetraploid (4x) JP, 2x EV x 4x JP, and 4x EV x 2x JP were conducted. Seeds were obtained in all crosses, although the number of progenies per capsule was relatively low in crosses with 4x JP as a pollen parent. Plastome-genome incompatibility between a plastid genome from EV and a nuclear genome from JP was observed in progenies from 2x EV x 2x JP, 4x EV x 4x JP, and 2x EV x 4x JP, but not in 4x EV x 2x JP. This result indicates that plastome-genome incompatibility was broken by relative increase of the genome from EV in the nuclear genome of progenies.
机译：在二倍体常绿杜鹃花（EV）x二倍体 Rhododendron japonicum f的亚种间杂交中。 flavum （JP），由于EV的质体基因组与JP的核基因组之间的质体基因组-基因组不相容性，许多后代成为白化病。为了阐明不相容的机制，二倍体（2x）EV x二倍体（2x）JP，四倍体（4x）EV x四倍体（4x）JP，2x EV x 4x JP和4x EV x的倍体间和倍体内杂交进行2次JP。在所有杂交中均获得了种子，尽管以4x JP作为花粉亲本的杂交中每个胶囊的后代数量相对较少。在2x EV x 2x JP，4x EV x 4x JP和2x EV x 4x JP的后代中观察到EV的质体基因组与JP的核基因组之间的质体基因组不相容性，但在4x EV x 2x JP中未观察到。该结果表明，通过子代的核基因组中EV的基因组的相对增加，破坏了质子组-基因组的不相容性。

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