Heterotypic incompatibility

Japanese: 異型不和合性 - いけいふわごうせい
Heterotypic incompatibility

…This phenomenon is widely found in higher plants, and is apparently one of the reproductive modes that maintain and promote allogamy. There are two types of incompatibility: homotypic incompatibility, in which no morphological differentiation is observed in the pistil or stamen, and heterotypic incompatibility, in which differentiation is observed in the length of the pistil and stamen, the surface shape of the stigma, and the size and shape of the pollen. In the case of homotypic incompatibility, there is no difference in external morphology, so it can only be detected by crossing, and generally many of the mechanisms are controlled by genes. …

*Some of the terminology explanations that refer to "heterotypic incompatibility" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…この現象は高等植物に広く見いだされ,明らかに他殖性allogamyを維持,促進する繁殖様式の一つと考えられている。不和合性にはめしべやおしべになんら形態的な分化が認められない同型不和合性と,めしべとおしべの長さ,柱頭の表面の形態,花粉の大きさや形状などに分化のみられる異型不和合性が知られている。同型不和合性の場合は外部形態に差異がないので,交配によってのみ検出でき,一般にこの機構の多くは遺伝子によって制御されている。…

※「異型不和合性」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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