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Ovule positions within linear fruit are correlated with nonrandom mating in Robinia pseudoacacia

Post-pollination processes can lead to nonrandom mating among compatible pollen donors. Moreover, morphological patterns of ovule development within linear fruits are reportedly nonrandom and depend on ovule position. However, little is known about the relationship between nonrandom mating and ovule...

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Autores principales: Yuan, Cunquan, Sun, Yuhan, Sun, Peng, Li, Yunfei, Hu, Ruiyang, Zhao, Keqi, Wang, Jinxing, Li, Yun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5098198/
https://www.ncbi.nlm.nih.gov/pubmed/27819357
http://dx.doi.org/10.1038/srep36664
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author Yuan, Cunquan
Sun, Yuhan
Sun, Peng
Li, Yunfei
Hu, Ruiyang
Zhao, Keqi
Wang, Jinxing
Li, Yun
author_facet Yuan, Cunquan
Sun, Yuhan
Sun, Peng
Li, Yunfei
Hu, Ruiyang
Zhao, Keqi
Wang, Jinxing
Li, Yun
author_sort Yuan, Cunquan
collection PubMed
description Post-pollination processes can lead to nonrandom mating among compatible pollen donors. Moreover, morphological patterns of ovule development within linear fruits are reportedly nonrandom and depend on ovule position. However, little is known about the relationship between nonrandom mating and ovule position within linear fruit. Here, we combined controlled pollen competition experiments and paternity analyses on R. pseudoacacia to better understand nonrandom mating and its connection with ovule position. Molecular determination of siring success showed a significant departure from the expected ratio based on each kind of pollen mixture, suggesting a nonrandom mating. Outcrossed pollen grains, which were strongly favored, produced significantly more progeny than other pollen grains. Paternity analyses further revealed that the distribution of offspring produced by one specific pollen source was also nonrandom within linear fruit. The stylar end, which has a higher probability of maturation, produced a significantly higher number of outcrossed offspring than other offspring, suggesting a correlation between pollen source and ovule position. Our results suggested that a superior ovule position exists within the linear fruit in R. pseudoacacia, and the pollen that was strongly favored often preferentially occupies the ovules that were situated in a superior position, which ensured siring success and facilitated nonrandom mating.
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spelling pubmed-50981982016-11-10 Ovule positions within linear fruit are correlated with nonrandom mating in Robinia pseudoacacia Yuan, Cunquan Sun, Yuhan Sun, Peng Li, Yunfei Hu, Ruiyang Zhao, Keqi Wang, Jinxing Li, Yun Sci Rep Article Post-pollination processes can lead to nonrandom mating among compatible pollen donors. Moreover, morphological patterns of ovule development within linear fruits are reportedly nonrandom and depend on ovule position. However, little is known about the relationship between nonrandom mating and ovule position within linear fruit. Here, we combined controlled pollen competition experiments and paternity analyses on R. pseudoacacia to better understand nonrandom mating and its connection with ovule position. Molecular determination of siring success showed a significant departure from the expected ratio based on each kind of pollen mixture, suggesting a nonrandom mating. Outcrossed pollen grains, which were strongly favored, produced significantly more progeny than other pollen grains. Paternity analyses further revealed that the distribution of offspring produced by one specific pollen source was also nonrandom within linear fruit. The stylar end, which has a higher probability of maturation, produced a significantly higher number of outcrossed offspring than other offspring, suggesting a correlation between pollen source and ovule position. Our results suggested that a superior ovule position exists within the linear fruit in R. pseudoacacia, and the pollen that was strongly favored often preferentially occupies the ovules that were situated in a superior position, which ensured siring success and facilitated nonrandom mating. Nature Publishing Group 2016-11-07 /pmc/articles/PMC5098198/ /pubmed/27819357 http://dx.doi.org/10.1038/srep36664 Text en Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Yuan, Cunquan
Sun, Yuhan
Sun, Peng
Li, Yunfei
Hu, Ruiyang
Zhao, Keqi
Wang, Jinxing
Li, Yun
Ovule positions within linear fruit are correlated with nonrandom mating in Robinia pseudoacacia
title Ovule positions within linear fruit are correlated with nonrandom mating in Robinia pseudoacacia
title_full Ovule positions within linear fruit are correlated with nonrandom mating in Robinia pseudoacacia
title_fullStr Ovule positions within linear fruit are correlated with nonrandom mating in Robinia pseudoacacia
title_full_unstemmed Ovule positions within linear fruit are correlated with nonrandom mating in Robinia pseudoacacia
title_short Ovule positions within linear fruit are correlated with nonrandom mating in Robinia pseudoacacia
title_sort ovule positions within linear fruit are correlated with nonrandom mating in robinia pseudoacacia
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5098198/
https://www.ncbi.nlm.nih.gov/pubmed/27819357
http://dx.doi.org/10.1038/srep36664
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