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首页> 外文期刊>植物研究雑誌 >Dioecy Derived from Distyly in Morinda villosa Hook. f. (Rubiaceae) Occurring in Hukaung Valley, Kachin State. Myanmar
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Dioecy Derived from Distyly in Morinda villosa Hook. f. (Rubiaceae) Occurring in Hukaung Valley, Kachin State. Myanmar

机译：Dioecy源自Morinda villosa Hook中的Distyly。 F。 （茜草科）发生在克钦邦胡坎谷。缅甸

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摘要

Floral characters were examined to determine sexual system in the flowers of Morinda villosa Hook, f" a perennial woody climber occurring in Kachin State, Myanmar. The flowers are dimorphic, being either long-styled or short-styled morphs. The short-styled morph produced stainable pollen grains, but its style did not develop stigmatic papillae on the stigma. The long-styled morph, on the other hand, developed stigmatic papillae on the stigma, but did not produce pollen grains in its anthers. Only thelong-styled plants produced seeds. Based on these results, we considered that this species was morphologically distylous but functionally dioecious, and thus its sexual system may be derived from distyly.
机译：检查了花朵的性状，以确定Morinda villosa Hook的花朵中的性系统，该花朵是发生在缅甸克钦邦的多年生木本植物攀登者。花朵是双态的，是长型或短型变体。短型变体产生可染的花粉粒，但其花柱在柱头上不发育柱头乳突;另一方面，长型变体在柱头上形成柱头乳头，但在其花药中不产生花粉粒。根据这些结果，我们认为该物种在形态上是畸形的，但在功能上是雌雄异体的，因此其性系统可能来自于杂乱无章。

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