Disparate style lengths contribute to isolation of species in Rhododendron

Disparate style lengths contribute to isolation of species in Rhododendron
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不同的花柱长度有助于杜鹃花物种的隔离

DOI:
10.1071/bt9880183
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发表时间:
1988
影响因子:
1.1
通讯作者:
J. Rouse
J. Rouse
中科院分区:
生物学4区
文献类型:
--
作者:
E. Williams;J. Rouse

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结果表明,种间授粉的成功与否与雌雄花柱长度比(SLR)密切相关,而与两种杜鹃是否属于同一分类亚组无关。与SLR 6的杂交不成功,随着SLR接近1.0,成功的概率增加。当SLR为5-6时,花柱较长的种的花粉管深入子房,但很少观察到花粉管进入胚珠。因此,不同的花柱长度是杜鹃之间不协调的一个主要因素,并可能导致物种隔离。
For a group of closely related Rhododendron species in section Vireya, it is shown that success of interspecific pollinations is significantly dependent on male/female style length ratio (SLR), and apparently independent of whether both species belong to the same taxonomic subsection. Crosses with SLR 6 were unsuccessful, with the probability of success increasing as SLR approached 1.0. When SLR was 5-6, pollen tubes of the longer-styled species penetrated deeply into the ovary but were rarely observed to enter ovules. Disparate style lengths are therefore a major incongruity factor among Vireya rhododendrons, and may contribute to species isolation.
胼胝综合症
DOI: --
发表时间: 2005
期刊: Hwt : //www. glycoforum. gr. jp/science/word/glycbiology/PS-A03E. html
影响因子: --
作者:
T. Hayashi;K. Yoshida;Y. W. Park;T. Konishi;K. Baba;T. Hayashi
通讯作者: T. Hayashi