Phenotypic variations and heritability of reblooming daylily (Hemerocallis spp.)
Phenotypic variations and heritability of reblooming daylily (Hemerocallis spp.)
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DOI：
10.1016/j.scienta.2020.109521
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发表时间：
2020-10
影响因子：
4.3
通讯作者：
Yuxuan Cui;Yike Gao;L. Yuan;Z. Fan;Yingmin Lv;Hanyan Liu;Qixiang Zhang
中科院分区：
文献类型：
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作者：
Yuxuan Cui;Yike Gao;L. Yuan;Z. Fan;Yingmin Lv;Hanyan Liu;Qixiang Zhang
重开黄花菜（Hemerocallisspp.）在一个生长季节开两次花，可以显着延长花期。然而，由于缺乏有关重花性状的遗传信息，导致育种受到限制。根据北卡罗莱纳州设计 II (NC II)，十六个 F1 群体是通过八个重花亲本的人工授粉产生的。结果表明，对双亲而言，叶性状比花性状得到更显着的提升。 “早且经常”（FM3）和H.根据一般配合力（GCA）的估计，'K2005001'（M2）被认为是理想的父母。H. ‘布斯贝港黄金’×H. ‘Sagamore Bob Pelletier’（FM1×M1）具有最大的特殊配合力（SCA）值，成为最大的潜在杂交种群。叶长和花径分别具有最大的广义遗传力（0.930）和狭义遗传力（0.763）。再开花与叶片数量显着相关，因此可以通过选择营养阶段叶片较多的个体来获得再开花个体。
Reblooming daylily (Hemerocallisspp.), which blooms twice in a growing season, can significantly extend the florescence. However, the lack of genetic information about reblooming character resulted in the limitation for breeding. According to the North Carolina Design II (NC II), sixteen F1populations were generated from the artificial pollination of eight reblooming parents. The results showed that foliage traits got more significant promotion than floral traits over both parents.H. ‘Early and Often’ (FM3) andH. ‘K2005001’ (M2) were considered as the ideal parents, based on the estimation of general combining ability (GCA).H. ‘Boothbay Harbor Gold’ ×H. ‘Sagamore Bob Pelletier’ (FM1 × M1) had the largest special combining ability (SCA) value, becoming the greatest potential hybrid population. Leaf length and flower diameter had the largest broad-sense heritability (0.930) and narrow-sense heritability (0.763), respectively. Reblooming was significantly related to leaf number, making it possible to obtain rebloomers by selecting individuals with more leaves in the vegetative stage.