ClSCPL50 Is Associated with Waterlogging-Induced Shoot Elongation in Watermelon as Revealed by BSA-Seq and Transcriptome Profiling

Guan, Xiaoxiao; Wang, Ye; Huang, Chengchuang; Xu, Tingting; Lei, Aoyang; Hu, Zhongyuan

doi:10.3390/plants15111686

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ClSCPL50 Is Associated with Waterlogging-Induced Shoot Elongation in Watermelon as Revealed by BSA-Seq and Transcriptome Profiling

by

Xiaoxiao Guan

^1,†,

Ye Wang

^1,†,

Chengchuang Huang

¹,

Tingting Xu

^1,2,

Aoyang Lei

^1,2 and

Zhongyuan Hu

^1,2,*

¹

Laboratory of Vegetable Germplasm Innovation and Molecular Breeding, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China

²

Hainan Institute of Zhejiang University, Yazhou Bay Science and Technology City, Sanya 572025, China

^*

Author to whom correspondence should be addressed.

^†

These authors contributed equally to this work.

Plants 2026, 15(11), 1686; https://doi.org/10.3390/plants15111686

Submission received: 29 April 2026 / Revised: 26 May 2026 / Accepted: 27 May 2026 / Published: 29 May 2026

(This article belongs to the Section Plant Genetics, Genomics and Biotechnology)

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Abstract

Waterlogging, like other abiotic stresses, severely inhibits the growth and development of watermelon. However, few genes conferring waterlogging escape response have been identified in this crop to date. In this study, we performed bulked segregant analysis on a F₂ population exhibiting significant variation in waterlogging-induced shoot elongation. A 6.59 Mb candidate region on chromosome 7 was identified to be associated with waterlogging-induced shoot elongation. Integrated resequencing, fine-mapping and transcriptome analyses indicated that Cla97C07G134400 (ClSCPL50) candidate gene associated with waterlogging-induced shoot elongation. These findings provide novel insights into the genetic basis of the waterlogging escape response in watermelon and identify a potential target gene for improving waterlogging escape response in other dryland crops.

Keywords: watermelon; waterlogging; shoot elongation; ClSCPL50

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MDPI and ACS Style

Guan, X.; Wang, Y.; Huang, C.; Xu, T.; Lei, A.; Hu, Z. ClSCPL50 Is Associated with Waterlogging-Induced Shoot Elongation in Watermelon as Revealed by BSA-Seq and Transcriptome Profiling. Plants 2026, 15, 1686. https://doi.org/10.3390/plants15111686

AMA Style

Guan X, Wang Y, Huang C, Xu T, Lei A, Hu Z. ClSCPL50 Is Associated with Waterlogging-Induced Shoot Elongation in Watermelon as Revealed by BSA-Seq and Transcriptome Profiling. Plants. 2026; 15(11):1686. https://doi.org/10.3390/plants15111686

Chicago/Turabian Style

Guan, Xiaoxiao, Ye Wang, Chengchuang Huang, Tingting Xu, Aoyang Lei, and Zhongyuan Hu. 2026. "ClSCPL50 Is Associated with Waterlogging-Induced Shoot Elongation in Watermelon as Revealed by BSA-Seq and Transcriptome Profiling" Plants 15, no. 11: 1686. https://doi.org/10.3390/plants15111686

APA Style

Guan, X., Wang, Y., Huang, C., Xu, T., Lei, A., & Hu, Z. (2026). ClSCPL50 Is Associated with Waterlogging-Induced Shoot Elongation in Watermelon as Revealed by BSA-Seq and Transcriptome Profiling. Plants, 15(11), 1686. https://doi.org/10.3390/plants15111686

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ClSCPL50 Is Associated with Waterlogging-Induced Shoot Elongation in Watermelon as Revealed by BSA-Seq and Transcriptome Profiling

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