A genetic model for a pollenless trait in Asiatic hybrid lily and its utilization for breeding
A genetic model for a pollenless trait in Asiatic hybrid lily and its utilization for breeding
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DOI：
10.1016/s0304-4238(02)00230-3
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发表时间：
2003-05
影响因子：
4.3
通讯作者：
M. Yamagishi
中科院分区：
文献类型：
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作者：
M. Yamagishi
不释放花粉粒的百合品种一直很受欢迎，因为花粉粒污渍不容易从衣服上去除。作者从两个亚洲杂交百合品种“蒙特勒”和“日内瓦”的杂交中获得了一株f1植株，显示出无花粉表型（称为PL克隆）。PL无性系花丝短，花药未成熟，不释放花粉粒。将该PL无性系与4个亚洲百合杂交品种进行杂交，并对f1植株中无花粉表型植株的分离情况进行了研究。当与‘Geneva’和‘Montreux’回交时，所有f1植株均表现出无花粉表型，表明细胞质基因与无花粉性状有关。而PL无性系ב康涅狄格王’与PL无性系ב桑塞尔’杂交后出现了带花粉粒的f1植株。根据这些结果，提出了无花粉性状的遗传模型。无花粉表型的f1植株花被片比有花粉粒的f1植株花被片短，说明无花粉基因直接或间接地减小了花的大小。
Lilium cultivars that do not release pollen grains have been in demand since pollen grain stains are not easily removed from clothes. The author obtained one F1plant showing a pollenless phenotype (designated as a PL clone) from the cross between two Asiatic hybrid lily cultivars, ‘Montreux’ and ‘Geneva’. The PL clone showed short filaments with immature anthers and did not release pollen grains. The PL clone was crossed with four Asiatic hybrid lily cultivars, and segregation of plants with the pollenless phenotype among F1plants was investigated. All F1plants showed the pollenless phenotype when the PL clone was backcrossed with ‘Geneva’ and ‘Montreux’, suggesting cytoplasmic gene(s) is related to the pollenless trait. However, F1plants with pollen grains appeared from the crosses of the PL clone ב Connecticut King ’ and the PL clone ב Sancerre ’ . From these results, a genetic model for the pollenless trait is proposed. F1plants showing the pollenless phenotype had shorter tepals than F1plants with pollen grains, indicating that pollenless genes reduce flower size directly or indirectly.