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Apomictic Malus plants exhibit abnormal pollen development

Apomixis is the asexual reproduction through seeds that leads to the production of genetically uniform progeny. It has become an important tool in plant breeding because it facilitates the retention of genotypes with desirable traits and allows seeds to be obtained directly from mother plants. Apomi...

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Autores principales: Liu, Dan-Dan, Wang, Da-Ru, Yang, Xuan-Yu, Zhao, Chang-Hui, Li, Shao-Hua, Sha, Guang-Li, Zhang, Rui-Fen, Ge, Hong-Juan, Tong, Xian-Song, You, Chun-Xiang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9986266/
https://www.ncbi.nlm.nih.gov/pubmed/36890893
http://dx.doi.org/10.3389/fpls.2023.1065032
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author Liu, Dan-Dan
Wang, Da-Ru
Yang, Xuan-Yu
Zhao, Chang-Hui
Li, Shao-Hua
Sha, Guang-Li
Zhang, Rui-Fen
Ge, Hong-Juan
Tong, Xian-Song
You, Chun-Xiang
author_facet Liu, Dan-Dan
Wang, Da-Ru
Yang, Xuan-Yu
Zhao, Chang-Hui
Li, Shao-Hua
Sha, Guang-Li
Zhang, Rui-Fen
Ge, Hong-Juan
Tong, Xian-Song
You, Chun-Xiang
author_sort Liu, Dan-Dan
collection PubMed
description Apomixis is the asexual reproduction through seeds that leads to the production of genetically uniform progeny. It has become an important tool in plant breeding because it facilitates the retention of genotypes with desirable traits and allows seeds to be obtained directly from mother plants. Apomixis is rare in most economically important crops, but it occurs in some Malus species. Here, the apomictic characteristics of Malus were examined using four apomictic and two sexually reproducing Malus plants. Results from transcriptome analysis showed that plant hormone signal transduction was the main factor affecting apomictic reproductive development. Four of the apomictic Malus plants examined were triploid, and pollen was either absent or present in very low densities in the stamen. Variation in the presence of pollen was associated with variation in the apomictic percentage; specifically, pollen was absent in the stamens of tea crabapple plants with the highest apomictic percentage. Furthermore, pollen mother cells failed to progress normally into meiosis and pollen mitosis, a trait mostly observed in apomictic Malus plants. The expression levels of meiosis-related genes were upregulated in apomictic plants. Our findings indicate that our simple method of detecting pollen abortion could be used to identify apple plants that are capable of apomictic reproduction.
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spelling pubmed-99862662023-03-07 Apomictic Malus plants exhibit abnormal pollen development Liu, Dan-Dan Wang, Da-Ru Yang, Xuan-Yu Zhao, Chang-Hui Li, Shao-Hua Sha, Guang-Li Zhang, Rui-Fen Ge, Hong-Juan Tong, Xian-Song You, Chun-Xiang Front Plant Sci Plant Science Apomixis is the asexual reproduction through seeds that leads to the production of genetically uniform progeny. It has become an important tool in plant breeding because it facilitates the retention of genotypes with desirable traits and allows seeds to be obtained directly from mother plants. Apomixis is rare in most economically important crops, but it occurs in some Malus species. Here, the apomictic characteristics of Malus were examined using four apomictic and two sexually reproducing Malus plants. Results from transcriptome analysis showed that plant hormone signal transduction was the main factor affecting apomictic reproductive development. Four of the apomictic Malus plants examined were triploid, and pollen was either absent or present in very low densities in the stamen. Variation in the presence of pollen was associated with variation in the apomictic percentage; specifically, pollen was absent in the stamens of tea crabapple plants with the highest apomictic percentage. Furthermore, pollen mother cells failed to progress normally into meiosis and pollen mitosis, a trait mostly observed in apomictic Malus plants. The expression levels of meiosis-related genes were upregulated in apomictic plants. Our findings indicate that our simple method of detecting pollen abortion could be used to identify apple plants that are capable of apomictic reproduction. Frontiers Media S.A. 2023-02-20 /pmc/articles/PMC9986266/ /pubmed/36890893 http://dx.doi.org/10.3389/fpls.2023.1065032 Text en Copyright © 2023 Liu, Wang, Yang, Zhao, Li, Sha, Zhang, Ge, Tong and You https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Plant Science
Liu, Dan-Dan
Wang, Da-Ru
Yang, Xuan-Yu
Zhao, Chang-Hui
Li, Shao-Hua
Sha, Guang-Li
Zhang, Rui-Fen
Ge, Hong-Juan
Tong, Xian-Song
You, Chun-Xiang
Apomictic Malus plants exhibit abnormal pollen development
title Apomictic Malus plants exhibit abnormal pollen development
title_full Apomictic Malus plants exhibit abnormal pollen development
title_fullStr Apomictic Malus plants exhibit abnormal pollen development
title_full_unstemmed Apomictic Malus plants exhibit abnormal pollen development
title_short Apomictic Malus plants exhibit abnormal pollen development
title_sort apomictic malus plants exhibit abnormal pollen development
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9986266/
https://www.ncbi.nlm.nih.gov/pubmed/36890893
http://dx.doi.org/10.3389/fpls.2023.1065032
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