果实形态发生学研究的一个主题

A. Odintsova
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引用次数: 4

摘要

在这篇综述中,果实形态发生的概念是在果学中实施evo-devo方法的背景下处理的。提出并论证了果实形态发生的新观点,包括果实发育的花前和花后时期、雌核发育和果实本身的发育。有人提出要认识到果实形态发生的个体遗传学(个体)和进化(历史)方面,其中第一个方面我们可以直接研究,而第二个方面只能假设或视为果实进化的理论模型,因为个体果实形态发生了一些假定的变化。本文将这些方面分别命名为果实的“个体形态发生”和“系统形态发生”。我们对果实个体形态发生的概念涉及四个无法结合在一起的组成部分,如雌蕊群形态结构的变化、特殊花部分和花柱的脱落、果壁和其他果实部分的组织发生,以及果实形态发生的终末阶段(开裂、分裂或脱落)。讨论了在个体和进化背景下对这些组成部分的研究现状。通过研究果实的进化模式,我们应该考虑影响果实个体形态发生的花后和花前时期的因素。
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Morphogenesis of fruit as a subject matter for the carpological studies
In this review, the concept of fruit morphogenesis is treated in the context of implementation of the evo-devo approach in carpology. A new viewpoint on the fruit morphogenesis is proposed and justified, comprising the pre-anthetic, as well as post-anthetic periods of fruit development, id est, development of the gynoecium, and development of the fruit itself. It is proposed to recognize ontogenetical (individual) and evolutionary (historical) aspects of fruit morphogenesis, the first of them we can study directly, while the second aspect can be only hypothesized or treated as a theoretical model of fruit evolution in consequence of some presumed changes in the individual fruit morphogenesis. In this article these aspects are named as "ontomorphogenesis" and "phylomorphogenesis" of the fruit, correspondingly. Our concept of ontomorphogenesis of the fruit involves four components that could not be brought together, such as changes in the morphological structure of the gynoecium, abscission of the extragynecial floral parts and the style, histogenesis of the fruit wall and other fruit parts, and terminal stages of the fruit morphogenesis (dehiscence, splitting, or abscission). The current state of studies of these components in the individual and evolutionary contexts is discussed. By examining the patterns of fruit evolution, we should consider factors acting at both the post-anthetic and pre-anthetic periods of fruit ontomorphogenesis.
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来源期刊
CiteScore
0.80
自引率
0.00%
发文量
36
审稿时长
8 weeks
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