Cargando…

High self-paternity levels and effects of fertilised-seed number on size of strawberry fruit

Cross-pollination can increase fruit production in both self-incompatible and self-compatible fruit crops. However, it is often unclear what proportions of the fruit crop result from cross-pollination. We quantified the proportion of cross-pollinated seeds and the proportion of fertilised seeds in t...

Descripción completa

Detalles Bibliográficos
Autores principales: Kämper, Wiebke, Dung, Cao Dinh, Ogbourne, Steven M., Wallace, Helen M., Trueman, Stephen J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9469984/
https://www.ncbi.nlm.nih.gov/pubmed/36099262
http://dx.doi.org/10.1371/journal.pone.0273457
_version_ 1784788752020799488
author Kämper, Wiebke
Dung, Cao Dinh
Ogbourne, Steven M.
Wallace, Helen M.
Trueman, Stephen J.
author_facet Kämper, Wiebke
Dung, Cao Dinh
Ogbourne, Steven M.
Wallace, Helen M.
Trueman, Stephen J.
author_sort Kämper, Wiebke
collection PubMed
description Cross-pollination can increase fruit production in both self-incompatible and self-compatible fruit crops. However, it is often unclear what proportions of the fruit crop result from cross-pollination. We quantified the proportion of cross-pollinated seeds and the proportion of fertilised seeds in two strawberry cultivars, Red Rhapsody and Sundrench, at increasing distances from a cross-pollen source. We assessed whether fully self-pollinated fruit and partly cross-pollinated fruit differed in fruit size, colour, firmness, Brix and acidity. We also assessed whether fruit size and quality were affected by the number or percentage of fertilised seeds. Almost all seeds of both cultivars resulted from self-pollination (~98%), even at only 1 m from a cross-pollen source. Distance from a cross-pollen source did not affect the proportion of partly cross-pollinated fruit or the proportion of cross-pollinated seeds per fruit. The mass and diameter of fully self-pollinated Sundrench fruit, and the redness and Brix of fully self-pollinated Red Rhapsody fruit, were higher than partly cross-pollinated fruit. Fruit mass, length and diameter increased, and acidity decreased, with increasing numbers of fertilised seeds in both cultivars. Fruit mass also increased with the percentage of fertilised seeds. Our results show that cross-pollination was not required for Red Rhapsody and Sundrench fruit production, and that cross-pollination was a rare occurrence even close to cross pollen source. Self-pollen deposition on stigmas is required to maximise the number of fertilised seeds, and consequently fruit size and quality. Our research indicates that bees improve strawberry fruit size by increasing the number of stigmas that receive pollen. Our results suggest that placing bee hives on strawberry farms during flowering and establishing nearby pollinator habitat to support wild pollinators could improve strawberry yield and fruit quality.
format Online
Article
Text
id pubmed-9469984
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher Public Library of Science
record_format MEDLINE/PubMed
spelling pubmed-94699842022-09-14 High self-paternity levels and effects of fertilised-seed number on size of strawberry fruit Kämper, Wiebke Dung, Cao Dinh Ogbourne, Steven M. Wallace, Helen M. Trueman, Stephen J. PLoS One Research Article Cross-pollination can increase fruit production in both self-incompatible and self-compatible fruit crops. However, it is often unclear what proportions of the fruit crop result from cross-pollination. We quantified the proportion of cross-pollinated seeds and the proportion of fertilised seeds in two strawberry cultivars, Red Rhapsody and Sundrench, at increasing distances from a cross-pollen source. We assessed whether fully self-pollinated fruit and partly cross-pollinated fruit differed in fruit size, colour, firmness, Brix and acidity. We also assessed whether fruit size and quality were affected by the number or percentage of fertilised seeds. Almost all seeds of both cultivars resulted from self-pollination (~98%), even at only 1 m from a cross-pollen source. Distance from a cross-pollen source did not affect the proportion of partly cross-pollinated fruit or the proportion of cross-pollinated seeds per fruit. The mass and diameter of fully self-pollinated Sundrench fruit, and the redness and Brix of fully self-pollinated Red Rhapsody fruit, were higher than partly cross-pollinated fruit. Fruit mass, length and diameter increased, and acidity decreased, with increasing numbers of fertilised seeds in both cultivars. Fruit mass also increased with the percentage of fertilised seeds. Our results show that cross-pollination was not required for Red Rhapsody and Sundrench fruit production, and that cross-pollination was a rare occurrence even close to cross pollen source. Self-pollen deposition on stigmas is required to maximise the number of fertilised seeds, and consequently fruit size and quality. Our research indicates that bees improve strawberry fruit size by increasing the number of stigmas that receive pollen. Our results suggest that placing bee hives on strawberry farms during flowering and establishing nearby pollinator habitat to support wild pollinators could improve strawberry yield and fruit quality. Public Library of Science 2022-09-13 /pmc/articles/PMC9469984/ /pubmed/36099262 http://dx.doi.org/10.1371/journal.pone.0273457 Text en © 2022 Kämper et al https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Kämper, Wiebke
Dung, Cao Dinh
Ogbourne, Steven M.
Wallace, Helen M.
Trueman, Stephen J.
High self-paternity levels and effects of fertilised-seed number on size of strawberry fruit
title High self-paternity levels and effects of fertilised-seed number on size of strawberry fruit
title_full High self-paternity levels and effects of fertilised-seed number on size of strawberry fruit
title_fullStr High self-paternity levels and effects of fertilised-seed number on size of strawberry fruit
title_full_unstemmed High self-paternity levels and effects of fertilised-seed number on size of strawberry fruit
title_short High self-paternity levels and effects of fertilised-seed number on size of strawberry fruit
title_sort high self-paternity levels and effects of fertilised-seed number on size of strawberry fruit
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9469984/
https://www.ncbi.nlm.nih.gov/pubmed/36099262
http://dx.doi.org/10.1371/journal.pone.0273457
work_keys_str_mv AT kamperwiebke highselfpaternitylevelsandeffectsoffertilisedseednumberonsizeofstrawberryfruit
AT dungcaodinh highselfpaternitylevelsandeffectsoffertilisedseednumberonsizeofstrawberryfruit
AT ogbournestevenm highselfpaternitylevelsandeffectsoffertilisedseednumberonsizeofstrawberryfruit
AT wallacehelenm highselfpaternitylevelsandeffectsoffertilisedseednumberonsizeofstrawberryfruit
AT truemanstephenj highselfpaternitylevelsandeffectsoffertilisedseednumberonsizeofstrawberryfruit