The pseudo-type response regulator gene Clsc regulates rind stripe coloration in watermelon

The color and pattern of watermelon rind are crucial external traits that directly affect consumer preferences. Watermelons with stripes having a stronger color than the background rind are ideal for studying stripe patterns in plants, while there is still limited knowledge about the genetic mechani...

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Main Authors: Dongming Liu, Jinfang Liang, Quanquan Liu, Yaxin Chen, Shixiang Duan, Dongling Sun, Huayu Zhu, Junling Dou, Huanhuan Niu, Sen Yang, Shouru Sun, Jianbin Hu, Luming Yang
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2025-01-01
Series:Journal of Integrative Agriculture
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Online Access:http://www.sciencedirect.com/science/article/pii/S2095311924002971
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author Dongming Liu
Jinfang Liang
Quanquan Liu
Yaxin Chen
Shixiang Duan
Dongling Sun
Huayu Zhu
Junling Dou
Huanhuan Niu
Sen Yang
Shouru Sun
Jianbin Hu
Luming Yang
author_facet Dongming Liu
Jinfang Liang
Quanquan Liu
Yaxin Chen
Shixiang Duan
Dongling Sun
Huayu Zhu
Junling Dou
Huanhuan Niu
Sen Yang
Shouru Sun
Jianbin Hu
Luming Yang
author_sort Dongming Liu
collection DOAJ
description The color and pattern of watermelon rind are crucial external traits that directly affect consumer preferences. Watermelons with stripes having a stronger color than the background rind are ideal for studying stripe patterns in plants, while there is still limited knowledge about the genetic mechanisms underlying stripe coloration due to the lack of germplasm resources. In this study, we focused on a watermelon germplasm with colorless stripes, and genetic analysis revealed that the trait is controlled by a single recessive gene. The gene Clsc (Citrullus lanatus stripe coloration), which is responsible for the colorless stripe, was localized into a 147.6 kb region on Chr9 by linkage analysis in a large F2 mapping population. Further analysis revealed that the Cla97C09G175170 gene encodes the APRR2 transcription factor, plays a crucial role in determining the watermelon colorless stripe phenotype and was deduced to be related to chlorophyll synthesis and chloroplast development. Physiological experiments indicated that Cla97C09G175170 may significantly influence chloroplast development and chlorophyll synthesis in watermelon. The results of this study provide a better understanding of the molecular mechanism of stripe coloration in watermelon and can be useful in the development of marker-assisted selection (MAS) for new watermelon cultivars.
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institution Kabale University
issn 2095-3119
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publisher KeAi Communications Co., Ltd.
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series Journal of Integrative Agriculture
spelling doaj-art-520298c108e24d8ca58deeb6d34294d92025-08-20T03:58:25ZengKeAi Communications Co., Ltd.Journal of Integrative Agriculture2095-31192025-01-0124114716010.1016/j.jia.2024.08.006The pseudo-type response regulator gene Clsc regulates rind stripe coloration in watermelonDongming Liu0Jinfang Liang1Quanquan Liu2Yaxin Chen3Shixiang Duan4Dongling Sun5Huayu Zhu6Junling Dou7Huanhuan Niu8Sen Yang9Shouru Sun10Jianbin Hu11Luming Yang12College of Horticulture, Henan Agricultural University, Zhengzhou 450046, ChinaCollege of Horticulture, Henan Agricultural University, Zhengzhou 450046, ChinaCollege of Horticulture, Henan Agricultural University, Zhengzhou 450046, ChinaCollege of Horticulture, Henan Agricultural University, Zhengzhou 450046, ChinaCollege of Horticulture, Henan Agricultural University, Zhengzhou 450046, ChinaCollege of Horticulture, Henan Agricultural University, Zhengzhou 450046, ChinaCollege of Horticulture, Henan Agricultural University, Zhengzhou 450046, ChinaCollege of Horticulture, Henan Agricultural University, Zhengzhou 450046, ChinaCollege of Horticulture, Henan Agricultural University, Zhengzhou 450046, ChinaCollege of Horticulture, Henan Agricultural University, Zhengzhou 450046, ChinaCollege of Horticulture, Henan Agricultural University, Zhengzhou 450046, ChinaCollege of Horticulture, Henan Agricultural University, Zhengzhou 450046, ChinaCorrespondence Luming Yang; College of Horticulture, Henan Agricultural University, Zhengzhou 450046, ChinaThe color and pattern of watermelon rind are crucial external traits that directly affect consumer preferences. Watermelons with stripes having a stronger color than the background rind are ideal for studying stripe patterns in plants, while there is still limited knowledge about the genetic mechanisms underlying stripe coloration due to the lack of germplasm resources. In this study, we focused on a watermelon germplasm with colorless stripes, and genetic analysis revealed that the trait is controlled by a single recessive gene. The gene Clsc (Citrullus lanatus stripe coloration), which is responsible for the colorless stripe, was localized into a 147.6 kb region on Chr9 by linkage analysis in a large F2 mapping population. Further analysis revealed that the Cla97C09G175170 gene encodes the APRR2 transcription factor, plays a crucial role in determining the watermelon colorless stripe phenotype and was deduced to be related to chlorophyll synthesis and chloroplast development. Physiological experiments indicated that Cla97C09G175170 may significantly influence chloroplast development and chlorophyll synthesis in watermelon. The results of this study provide a better understanding of the molecular mechanism of stripe coloration in watermelon and can be useful in the development of marker-assisted selection (MAS) for new watermelon cultivars.http://www.sciencedirect.com/science/article/pii/S2095311924002971watermelon stripecolorationinheritancegene mappingtranscriptome
spellingShingle Dongming Liu
Jinfang Liang
Quanquan Liu
Yaxin Chen
Shixiang Duan
Dongling Sun
Huayu Zhu
Junling Dou
Huanhuan Niu
Sen Yang
Shouru Sun
Jianbin Hu
Luming Yang
The pseudo-type response regulator gene Clsc regulates rind stripe coloration in watermelon
Journal of Integrative Agriculture
watermelon stripe
coloration
inheritance
gene mapping
transcriptome
title The pseudo-type response regulator gene Clsc regulates rind stripe coloration in watermelon
title_full The pseudo-type response regulator gene Clsc regulates rind stripe coloration in watermelon
title_fullStr The pseudo-type response regulator gene Clsc regulates rind stripe coloration in watermelon
title_full_unstemmed The pseudo-type response regulator gene Clsc regulates rind stripe coloration in watermelon
title_short The pseudo-type response regulator gene Clsc regulates rind stripe coloration in watermelon
title_sort pseudo type response regulator gene clsc regulates rind stripe coloration in watermelon
topic watermelon stripe
coloration
inheritance
gene mapping
transcriptome
url http://www.sciencedirect.com/science/article/pii/S2095311924002971
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