Article
Agronomy
Jinfa Zhang, Yi Zhu, Heather D. Elkins-Arce, Terry Wheeler, Jane Dever, Derek Whitelock, Kater Hake, Tom Wedegaertner
Summary: The study reveals the consistency between field and greenhouse evaluations for Fusarium wilt resistance in cotton. Root and stem vascular staining are effective indicators for evaluating resistance.
Article
Agronomy
Yi Zhu, Gregory N. Thyssen, Abdelraheem Abdelraheem, Zonghua Teng, David D. Fang, Johnie N. Jenkins, Jack C. McCarty, Tom Wedegaertner, Kater Hake, Jinfa Zhang
Summary: In this study, a major QTL conferring resistance to Fusarium wilt race 4 (FOV4) in Upland cotton was identified using a multi-parent advanced generation inter-cross (MAGIC) population. The study also conducted a genome-wide association study (GWAS) and a meta-analysis, identifying 14 candidate genes and genetic biases. This research provides important information for developing FOV4-resistant cultivars and further genomic studies on FOV4 resistance in cotton.
THEORETICAL AND APPLIED GENETICS
(2022)
Article
Agronomy
Abdelraheem Abdelraheem, Yi Zhu, Jane Dever, Terry Wheeler, Tom Wedegaertner, Kater Hake, Jinfa Zhang
Summary: Through hybrid analysis, it was found that the genetic basis of FOV4 resistance in pima cotton is mainly non-additive effects, and at least one or two genes are associated with FOV4 resistance in pima cotton.
Review
Plant Sciences
Jinfa Zhang, Tom Wedegaertner
Summary: Glandless cotton has potential for fiber, feeds, and food purposes, but challenges like insect sensitivity and low yield hinder its commercial production. Research at New Mexico State University has led to the development of three glandless Upland cotton cultivars with improved yield and disease resistance. More breeding efforts are needed to introduce different glandless traits into elite cotton backgrounds to compete with commercial varieties.
FRONTIERS IN PLANT SCIENCE
(2021)
Review
Biochemistry & Molecular Biology
Mingwu Man, Yaqian Zhu, Lulu Liu, Lei Luo, Xinpei Han, Lu Qiu, Fuguang Li, Maozhi Ren, Yadi Xing
Summary: This article discusses the resistance and susceptibility mechanisms of cotton to Fusarium and Verticillium wilt, as well as the classification of associated genes. The characteristics of Fusarium and the role of human neutrophils in limiting hyphal growth are outlined. The similarities and differences between animal and plant resistance to Fusarium are comprehensively compared.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Agronomy
Yi Zhu, Abdelraheem Abdelraheem, Peter Cooke, Terry Wheeler, Jane K. Dever, Kater Hake, Kaitlyn Bissonnette, Jinfa Zhang
Summary: This study compared the infection process of Fusarium wilt in three Upland cotton cultivars and found that FM 2334GLT(R) had delayed infection, reduced fungal growth and reproduction, and prevented the FOV4 fungus from invading the xylem. The resistance in FM 2334GLT(R) was similar to that in Pima PHY 841 RF but with fewer hyphae in the cortex, suggesting possible different resistant mechanisms.
Article
Plant Sciences
Yi Zhu, Abdelraheem Abdelraheem, Phillip Lujan, John Idowu, Patrick Sullivan, Robert Nichols, Tom Wedegaertner, Jinfa Zhang
Summary: The study conducted a field survey in three southern counties of New Mexico and identified FOV4, a threat to cotton production, with different levels of virulence. Different cotton cultivars showed varying degrees of resistance to FOV4.
Article
Agronomy
Stephen Parris, Whitney Huang, Don Jones, William Bridges, James Olvey, Mike Olvey, Christopher Saski
Summary: Variable environmental factors can significantly affect crop field screening programs, leading to experimental errors in data collection and confounding genetic studies. This study demonstrated the use of check plots and predictive models to accurately assess pathogen pressure in the field, providing support for selecting resistant crop varieties. These techniques are transferrable to other field screening programs that need to account for environmental variation.
Article
Biochemistry & Molecular Biology
Jinfa Zhang, Yi Zhu, Terry Wheeler, Jane K. K. Dever, Kater Hake
Summary: The study discovered a significant correlation between the chromosome region at 2.130-2.292 Mb on D03 and the major symptoms caused by FOV4 in Chinese Upland cotton. Based on two significant SNP markers, accessions with AA or TT genotypes showed lower symptoms. This study provides a foundation for marker-assisted selection and identification of FOV4-resistant Upland germplasms with SNPs.
MOLECULAR GENETICS AND GENOMICS
(2023)
Article
Agronomy
Jinfa Zhang, Abdelraheem Abdelraheem, Yi Zhu, Terry A. Wheeler, Jane K. Dever, Jiwen Yu, Yuzhen Shi, Youlu Yuan, Tom Wedegaertner
Summary: The study evaluated the dynamic responses to FOV4 infections in two introgressed Upland cotton populations, revealing unique responses of resistant and susceptible lines during different DAI periods. These results provide insights for further studies on resistance genes or QTLs and offer a feasible method for identifying FOV4 resistance.
Article
Plant Sciences
Jinfa Zhang, Abdelraheem Abdelraheem, Yi Zhu, Heather Elkins-Arce, Jane Dever, Derek Whitelock, Kater Hake, Tom Wedegaertner, Terry A. Wheeler
Summary: This study investigated the effects of cultivar, planting date, and inoculum density on the disease progression of cotton infected with FOV4. The results showed that early planting and lower temperatures are favorable for reducing the severity of the disease, while higher inoculum densities increase the severity. Disease progression curves can be used to compare the response of different cotton genotypes to FOV4 infections, regardless of planting date and inoculation method.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Agronomy
Yi Zhu, Heather Elkins-Arce, Terry A. Wheeler, Jane Dever, Derek Whitelock, Kater Hake, Tom Wedegaertner, Jinfa Zhang
Summary: This study investigates the effects of cotton growth stage, cultivar, and root wounding on the development of Fusarium wilt caused by FOV4. The results show that seedlings inoculated at the cotyledon stage are the most susceptible, and root wounding at this stage further enhances their susceptibility.
Article
Plant Sciences
Mukhtor M. Darmanov, Abdusalom K. Makamov, Mirzakamol S. Ayubov, Naim N. Khusenov, Zabardast T. Buriev, Shukhrat E. Shermatov, Ilkhom B. Salakhutdinov, Khurshida A. Ubaydullaeva, Jurabek K. Norbekov, Maftuna M. Kholmuradova, Sardor E. Narmatov, Ilyos S. Normamatov, Ibrokhim Y. Abdurakhmonov
Summary: Marker-assisted selection (MAS) is an effective method in cotton breeding to shorten breeding time, reduce resources and efforts. In this study, two novel MAS-derived cotton cultivars were developed by transferring LD-blocks with superior fiber quality QTLs from donor genotypes to recipient cultivars through backcrossing. The resulting cultivars showed improved fiber length, strength, uniformity and micronaire compared to the original parents. These results demonstrate the feasibility and success of MAS in cotton breeding.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Jinfa Zhang, Abdelraheem Abdelraheem, Jianjiang Ma, Yi Zhu, Jane Dever, Terry A. Wheeler, Kater Hake, Tom Wedegaertner, Jiwen Yu
Summary: In this study, a backcross inbred line population of cotton was evaluated for resistance to Fusarium wilt race 4 at different days after inoculation. Both constitutively expressed and developmentally regulated QTLs were detected. Genetic mapping identified multiple QTLs associated with resistance, some of which showed different responses to the pathogen at different days after inoculation. Additionally, DAI-specific and consistent QTLs for resistance were detected, indicating the importance of evaluating genetic populations at different growth stages when studying Fusarium wilt resistance.
MOLECULAR GENETICS AND GENOMICS
(2022)
Article
Plant Sciences
Tanya A. Wagner, Sara E. Duke, Shayla M. Davie, Clint Magill, Jinggao Liu
Summary: Fusarium wilt, caused by Fusarium oxysporum f. sp. vasinfectum, is a severe disease of cotton. The study found that the race 4 strain of the wilt pathogen can attack cotton without concomitant infection by plant-parasitic nematodes and can also interact with the nematode to further increase disease severity.