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Article

Genetic Mapping and Characterization of Verticillium Wilt Resistance in a Recombinant Inbred Population of Upland Cotton

by
Iain W. Wilson
1,*,
Philippe Moncuquet
1,
Yuman Yuan
1,
Melanie Soliveres
1,
Zitong Li
1,
Warwick Stiller
2 and
Qian-Hao Zhu
1
1
CSIRO Agriculture and Food, GPO Box 1700, Canberra, ACT 2061, Australia
2
CSIRO Agriculture and Food, Locked Bag 59, Narrabri, NSW 2390, Australia
*
Author to whom correspondence should be addressed.
Int. J. Mol. Sci. 2024, 25(4), 2439; https://doi.org/10.3390/ijms25042439
Submission received: 30 January 2024 / Revised: 13 February 2024 / Accepted: 15 February 2024 / Published: 19 February 2024
(This article belongs to the Section Molecular Genetics and Genomics)
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Abstract

Verticillium wilt (VW) is an important and widespread disease of cotton and once established is long-lived and difficult to manage. In Australia, the non-defoliating pathotype of Verticillium dahliae is the most common, and extremely virulent. Breeding cotton varieties with increased VW resistance is the most economical and effective method of controlling this disease and is greatly aided by understanding the genetics of resistance. This study aimed to investigate VW resistance in 240 F7 recombinant inbred lines (RIL) derived from a cross between MCU-5, which has good resistance, and Siokra 1–4, which is susceptible. Using a controlled environment bioassay, we found that resistance based on plant survival or shoot biomass was complex but with major contributions from chromosomes D03 and D09, with genomic prediction analysis estimating a prediction accuracy of 0.73 based on survival scores compared to 0.36 for shoot biomass. Transcriptome analysis of MCU-5 and Siokra 1–4 roots uninfected or infected with V. dahliae revealed that the two cultivars displayed very different root transcriptomes and responded differently to V. dahliae infection. Ninety-nine differentially expressed genes were located in the two mapped resistance regions and so are potential candidates for further identifying the genes responsible for VW resistance.
Keywords: verticillium wilt; disease resistance; Gossypium hirsutum; Verticillium dahliae; cotton; recombinant inbred lines; genomic prediction verticillium wilt; disease resistance; Gossypium hirsutum; Verticillium dahliae; cotton; recombinant inbred lines; genomic prediction

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MDPI and ACS Style

Wilson, I.W.; Moncuquet, P.; Yuan, Y.; Soliveres, M.; Li, Z.; Stiller, W.; Zhu, Q.-H. Genetic Mapping and Characterization of Verticillium Wilt Resistance in a Recombinant Inbred Population of Upland Cotton. Int. J. Mol. Sci. 2024, 25, 2439. https://doi.org/10.3390/ijms25042439

AMA Style

Wilson IW, Moncuquet P, Yuan Y, Soliveres M, Li Z, Stiller W, Zhu Q-H. Genetic Mapping and Characterization of Verticillium Wilt Resistance in a Recombinant Inbred Population of Upland Cotton. International Journal of Molecular Sciences. 2024; 25(4):2439. https://doi.org/10.3390/ijms25042439

Chicago/Turabian Style

Wilson, Iain W., Philippe Moncuquet, Yuman Yuan, Melanie Soliveres, Zitong Li, Warwick Stiller, and Qian-Hao Zhu. 2024. "Genetic Mapping and Characterization of Verticillium Wilt Resistance in a Recombinant Inbred Population of Upland Cotton" International Journal of Molecular Sciences 25, no. 4: 2439. https://doi.org/10.3390/ijms25042439

APA Style

Wilson, I. W., Moncuquet, P., Yuan, Y., Soliveres, M., Li, Z., Stiller, W., & Zhu, Q.-H. (2024). Genetic Mapping and Characterization of Verticillium Wilt Resistance in a Recombinant Inbred Population of Upland Cotton. International Journal of Molecular Sciences, 25(4), 2439. https://doi.org/10.3390/ijms25042439

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