Preventing self-fertilization: Insights from Ziziphus species

The fitness of self-progeny individuals is inferior to that of their outcrossed counterparts, resulting in a reduction in a plant population’s ability to survive and reproduce. To prevent self‐fertilization, angiosperms with hermaphrodite flowers may exploit a variety of mechanisms, including synchr...

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Main Author: Noemi Tel-Zur
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-08-01
Series:Frontiers in Plant Science
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fpls.2023.1226502/full
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author Noemi Tel-Zur
author_facet Noemi Tel-Zur
author_sort Noemi Tel-Zur
collection DOAJ
description The fitness of self-progeny individuals is inferior to that of their outcrossed counterparts, resulting in a reduction in a plant population’s ability to survive and reproduce. To prevent self‐fertilization, angiosperms with hermaphrodite flowers may exploit a variety of mechanisms, including synchronous dichogamy and self-incompatibility. Synchronous dichogamy involves two flowering morphs, with strict within-morph synchronization, thereby preventing not only autogamy and geitonogamy but also intra-morph mating. Self-fertilization is also prevented by self-incompatibility, a genetic mechanism that allows the identification and rejection of “self” pollen, thereby preventing both autogamy and geitonogamy. Here, I seek to provide a perspective of flowering in Ziziphus species exhibiting both synchronous (i.e., “Early” morph flowers open in the morning and “Late” morph flowers open in the afternoon) protandrous dichogamy (i.e., pollen dispersal before the stigma becomes receptive) and self-incompatibility.
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spelling doaj.art-4e43d8b8b14548a9a1a3ab70b8f25a462023-08-18T11:13:15ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2023-08-011410.3389/fpls.2023.12265021226502Preventing self-fertilization: Insights from Ziziphus speciesNoemi Tel-ZurThe fitness of self-progeny individuals is inferior to that of their outcrossed counterparts, resulting in a reduction in a plant population’s ability to survive and reproduce. To prevent self‐fertilization, angiosperms with hermaphrodite flowers may exploit a variety of mechanisms, including synchronous dichogamy and self-incompatibility. Synchronous dichogamy involves two flowering morphs, with strict within-morph synchronization, thereby preventing not only autogamy and geitonogamy but also intra-morph mating. Self-fertilization is also prevented by self-incompatibility, a genetic mechanism that allows the identification and rejection of “self” pollen, thereby preventing both autogamy and geitonogamy. Here, I seek to provide a perspective of flowering in Ziziphus species exhibiting both synchronous (i.e., “Early” morph flowers open in the morning and “Late” morph flowers open in the afternoon) protandrous dichogamy (i.e., pollen dispersal before the stigma becomes receptive) and self-incompatibility.https://www.frontiersin.org/articles/10.3389/fpls.2023.1226502/fulldioecismpre-or post-pollination mechanismsself-incompatibilitysynchronous dichogamyhermaphroditism
spellingShingle Noemi Tel-Zur
Preventing self-fertilization: Insights from Ziziphus species
Frontiers in Plant Science
dioecism
pre-or post-pollination mechanisms
self-incompatibility
synchronous dichogamy
hermaphroditism
title Preventing self-fertilization: Insights from Ziziphus species
title_full Preventing self-fertilization: Insights from Ziziphus species
title_fullStr Preventing self-fertilization: Insights from Ziziphus species
title_full_unstemmed Preventing self-fertilization: Insights from Ziziphus species
title_short Preventing self-fertilization: Insights from Ziziphus species
title_sort preventing self fertilization insights from ziziphus species
topic dioecism
pre-or post-pollination mechanisms
self-incompatibility
synchronous dichogamy
hermaphroditism
url https://www.frontiersin.org/articles/10.3389/fpls.2023.1226502/full
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