A natural hybrid ofMonophyllaea (Gesneriaceae) in the tropical rain forests of West Sumatra

A natural hybrid ofMonophyllaea (Gesneriaceae) in the tropical rain forests of West Sumatra
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西苏门答腊岛热带雨林中单叶植物(苦苣苔科)的自然杂交种

DOI:
10.1007/bf00935984
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发表时间:
2004
影响因子:
1.9
通讯作者:
H. Okada
H. Okada
中科院分区:
生物学3区
文献类型:
--
作者:
H. Okada

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本文报道了热带雨林种Monophyllaea hirtella(2n = 20)与M. horsfieldii(2n = 22)(苦苣苔科)。Lubuk Paraku,巴塘,W.苏门答腊岛。杂种在花序结构、花的大小和颜色、毛被、染色体数目和生境等方面表现出介于亲本之间的中间性状。一个单一的杂种标本的花粉育性29%表明,亲本物种之间的遗传隔离可能会打破和繁殖后代可能会发生。
A natural hybrid (2n = 21) between the parapatric rain forest speciesMonophyllaea hirtella(2n = 20) andM. horsfieldii(2n = 22) (Gesneriaceae) has been observed at Sg. Lubuk Paraku, Padang, W. Sumatra. The hybrids showed intermediary characters between the parental species in the inflorescence structure, flower size and colour, indumentum, chromosome numbers, and habitat. The 29% pollen fertility of a single hybrid specimen suggests that the genetical isolation between the parental species may break down and reproduction over subsequent generations may occur.