QTL associated with resistance to Stagonosporopsis citrulli in Citrullus amarus

Gummy stem blight (GSB) is a fungal disease affecting cucurbit crops, including watermelon (Citrullus lanatus), leading to significant yield losses. The disease is caused by three Stagonosporopsis species, of which Stagonosporopsis citrulli is the most common in the southeastern United States. Curre...

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Autores principales: Adams, Lincoln, McGregor, Cecilia
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9666438/
https://www.ncbi.nlm.nih.gov/pubmed/36380003
http://dx.doi.org/10.1038/s41598-022-23704-w
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author Adams, Lincoln
McGregor, Cecilia
author_facet Adams, Lincoln
McGregor, Cecilia
author_sort Adams, Lincoln
collection PubMed
description Gummy stem blight (GSB) is a fungal disease affecting cucurbit crops, including watermelon (Citrullus lanatus), leading to significant yield losses. The disease is caused by three Stagonosporopsis species, of which Stagonosporopsis citrulli is the most common in the southeastern United States. Currently no gummy stem blight-resistant watermelon cultivars are available to growers. In this study, QTL-seq in an interspecific population developed from Sugar Baby × PI 189225 (Citrullus amarus) identified QTL on chromosomes 2, 5, 9 and 11. A novel QTL on chromosome 5 (Qgsb5.2) associated with resistance to S. citrulli (PVE = 13.3%) was confirmed by genetic mapping. KASP marker assays were developed for selection of Qgsb5.2 to allow breeders to track the allele contributing resistance to GSB, reducing the need for laborious phenotyping. Pyramiding different GSB resistance QTL could be a useful strategy to develop GSB resistant watermelon cultivars.
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spelling pubmed-96664382022-11-17 QTL associated with resistance to Stagonosporopsis citrulli in Citrullus amarus Adams, Lincoln McGregor, Cecilia Sci Rep Article Gummy stem blight (GSB) is a fungal disease affecting cucurbit crops, including watermelon (Citrullus lanatus), leading to significant yield losses. The disease is caused by three Stagonosporopsis species, of which Stagonosporopsis citrulli is the most common in the southeastern United States. Currently no gummy stem blight-resistant watermelon cultivars are available to growers. In this study, QTL-seq in an interspecific population developed from Sugar Baby × PI 189225 (Citrullus amarus) identified QTL on chromosomes 2, 5, 9 and 11. A novel QTL on chromosome 5 (Qgsb5.2) associated with resistance to S. citrulli (PVE = 13.3%) was confirmed by genetic mapping. KASP marker assays were developed for selection of Qgsb5.2 to allow breeders to track the allele contributing resistance to GSB, reducing the need for laborious phenotyping. Pyramiding different GSB resistance QTL could be a useful strategy to develop GSB resistant watermelon cultivars. Nature Publishing Group UK 2022-11-15 /pmc/articles/PMC9666438/ /pubmed/36380003 http://dx.doi.org/10.1038/s41598-022-23704-w Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Adams, Lincoln
McGregor, Cecilia
QTL associated with resistance to Stagonosporopsis citrulli in Citrullus amarus
title QTL associated with resistance to Stagonosporopsis citrulli in Citrullus amarus
title_full QTL associated with resistance to Stagonosporopsis citrulli in Citrullus amarus
title_fullStr QTL associated with resistance to Stagonosporopsis citrulli in Citrullus amarus
title_full_unstemmed QTL associated with resistance to Stagonosporopsis citrulli in Citrullus amarus
title_short QTL associated with resistance to Stagonosporopsis citrulli in Citrullus amarus
title_sort qtl associated with resistance to stagonosporopsis citrulli in citrullus amarus
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9666438/
https://www.ncbi.nlm.nih.gov/pubmed/36380003
http://dx.doi.org/10.1038/s41598-022-23704-w
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