Article
Multidisciplinary Sciences
Qinqin Wang, Xuke Lu, Xiugui Chen, Waqar Afzal Malik, Delong Wang, Lanjie Zhao, Junjuan Wang, Shuai Wang, Lixue Guo, Ruifeng Cui, Mingge Han, Cun Rui, Yuexin Zhang, Yapeng Fan, Chao Chen, Wuwei Ye
Summary: Salinity is a significant environmental stress for crop plants worldwide, leading to reduced crop production and food security. Understanding the mechanisms involved in Na2SO4 tolerance in cotton can provide insights for genetic enhancements to improve cotton's response to salt stresses. Transcriptional studies of Na2SO4 resistant cotton cultivars have identified key genes and pathways involved in osmotic stress and ion toxicity, as well as potential targets for genetic improvement.
SCIENTIFIC REPORTS
(2021)
Article
Plant Sciences
Yuanchun Pu, Peilin Wang, Jiangling Xu, Yejun Yang, Ting Zhou, Kai Zheng, Xinwu Pei, Quanjia Chen, Guoqing Sun
Summary: The increasing water scarcity due to environmental change negatively affects the growth of cotton plants, emphasizing the need to improve their drought tolerance. In this study, we introduced the com58276 gene from Caragana korshinskii, a desert plant, into cotton plants. We generated three transgenic plants and demonstrated that com58276 enhances drought tolerance in cotton. RNA-seq analysis revealed the possible anti-stress mechanisms, and overexpression of com58276 did not affect plant growth and fiber content in transgenic cotton plants. Furthermore, com58276 showed conserved functions across species, improving cotton's tolerance to salt and low temperature, highlighting its potential for enhancing plant resistance to environmental change.
Article
Agricultural Engineering
Abdelraheem Abdelraheem, Vasu Kuraparthy, Lori Hinze, David Stelly, Tom Wedegaertner, Jinfa Zhang
Summary: In this study, an association mapping panel of 376 Upland cotton accessions was evaluated to identify QTL for thrips resistance, drought tolerance, and salt tolerance. Using 26,301 polymorphic SNPs, 53 QTL for drought tolerance, 78 QTL for salt tolerance, and 8 QTL for thrips resistance were detected. Thirteen QTL clusters were also found, containing QTL for different traits.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Plant Sciences
Laha Supriya, Pullaiahgari Durgeshwar, Mehanathan Muthamilarasan, Gudipalli Padmaja
Summary: Melatonin enhances drought tolerance in cotton plants by modulating the antioxidant system, increasing photosynthetic activity, water-use efficiency, and nitrogen metabolism. The study also found that the effect of melatonin differs between drought-sensitive and drought-tolerant varieties, with more pronounced effects observed in the sensitive variety. Additionally, the study suggests that autophagy may play a role in alleviating drought stress.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Jingxia Zhang, Pei Zhang, Xuehan Huo, Yang Gao, Yu Chen, Zhangqiang Song, Furong Wang, Jun Zhang
Summary: This study investigated the molecular mechanisms of salinity tolerance in cotton cultivars during seed germination and post-germination stages. The results showed that salt-tolerant cultivar exhibited up-regulation of differentially expressed genes whereas salt-sensitive cultivar showed mainly down-regulated genes. Common responses such as reactive oxygen species metabolism and cell wall biosynthesis were shared by both cultivars, while genes involved in specific pathways like MAPK-signaling and stress hormone biosynthesis showed significant expression differences between the two cultivars.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Biology
Wei Ren, Li Chen, Qian Wang, Yanping Ren
Summary: This study investigated the effect of MgSO4 pretreatment on the salt tolerance of upland cotton during the seedling stage. The results showed that MgSO4 treatment positively promoted seedling germination and growth, potentially by activating certain growth-regulating enzymes and metabolites. This pretreatment could be beneficial for enhancing cotton management in saline conditions.
Article
Agronomy
Raveendran Muthurajan, Valarmathi Ramanathan, Abhijeet Bansilal Shillak, Suryawanshi Madhuri Pralhad, Chavan Neha Shankarrao, Hifzur Rahman, Rohit Kambale, Jagadeeshselvam Nallathambi, Sudha Tamilselvan, Parani Madasamy
Summary: Engineering transcription factors (TF) show promise in enhancing abiotic stress tolerance in plants, as demonstrated by the study on genetically modified rice variety ADT 43 in South India. The transgenic lines of ADT 43 exhibited increased tolerance to drought and salinity, along with better growth performance and yield retention.
Article
Plant Sciences
Fenglei Sun, Jun Ma, Weijun Shi, Yanlong Yang
Summary: In this study, a genome-wide association study (GWAS) was conducted on 8 traits of 150 cotton germplasms using resequencing data. The results showed that 18 SNPs were significantly correlated with cotton yield traits under drought conditions, while 8 SNPs were significantly correlated with the traits related to yield. Transcriptome data analysis identified four highly expressed genes after drought stress. qRT-PCR confirmed that these genes had the same expression pattern in samples with extreme drought tolerance. This study provides a theoretical basis for genetic analysis and breeding improvement of cotton yield traits under drought stress.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Biology
Sadettin Celik
Summary: This study identified the genotypic responses of 93 cotton genotypes to drought and found drought-tolerant genotypes and commercial varieties with high drought tolerance means. These findings provide potential parent plants for developing drought-resistant cotton varieties.
Article
Genetics & Heredity
Juyun Zheng, Zeliang Zhang, Yajun Liang, Zhaolong Gong, Nala Zhang, Allah Ditta, Zhiwei Sang, Junduo Wang, Xueyuan Li
Summary: China's cotton industry is hindered by acute agricultural water shortages, particularly in the province of Xinjiang. Discovering drought resistance genes and breeding drought-resistant cotton varieties are crucial for the success of the industry. This study used transcriptome sequencing to identify drought-resistant candidate genes and revealed their mechanisms in enhancing plant drought resistance.
Article
Biochemistry & Molecular Biology
Hesham M. Abdullah, Jessica Rodriguez, Jeffrey M. Salacup, Isla S. Castaneda, Danny J. Schnell, Ashwani Pareek, Om Parkash Dhankher
Summary: By overexpressing a wax synthase gene (WSD1) in plants, the research team successfully enhanced tolerance to drought, salinity, and other adverse conditions, leading to increased yields. Additionally, they discovered new physiological functions of WSD1 in stress response, providing a new approach for enhancing productivity in plants under changing climates.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Biochemistry & Molecular Biology
Abdelraheem Abdelraheem, Gregory N. Thyssen, David D. Fang, Johnie N. Jenkins, Jack C. McCarty, Tom Wedegaertner, Jinfa Zhang
Summary: This study utilized a multi-parent advanced generation inter-cross population to identify QTL for drought and salt tolerance in cotton. It found candidate genes related to abiotic stress tolerance in Upland cotton. Common genetic basis for drought and salt tolerance was observed between DT and ST.
MOLECULAR GENETICS AND GENOMICS
(2021)
Article
Plant Sciences
Teng Yang, Xun Liu, Cong Cheng, Boyi Pi, Bingjun Yu
Summary: In this study, the physiological functions and molecular mechanisms of GhCLC5/16 genes in two upland cotton cultivars under salt stress were investigated. The results showed that GhCLC5/16 genes played a crucial role in improving salt tolerance in different cotton cultivars by regulating the absorption, transport, and distribution of anions. These findings provide new insights and valuable candidate gene resources for the molecular breeding of chloride-salinity tolerance in cotton and other crops.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2023)
Article
Biochemistry & Molecular Biology
Xiaotong Wei, Xuhong Fan, Honglin Zhang, Peng Jiao, Zhenzhong Jiang, Xuan Lu, Siyan Liu, Shuyan Guan, Yiyong Ma
Summary: In this study, the stress-related gene Zm00001d019704 (ZmSRG7) was identified and its biological function in maize was determined. The results showed that ZmSRG7 gene can improve maize tolerance to drought or salt stress by regulating hydrogen peroxide homeostasis.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Agronomy
Aneeq ur Rehman, Iqrar Ahmad Rana, Sajid Majeed, Muhammad Tanees Chaudhary, Mujahid Zulfiqar, Seung-Hwan Yang, Gyuhwa Chung, Yinhua Jia, Xiongming Du, Lori Hinze, Muhammad Tehseen Azhar
Summary: The study found that different flowering positions of the same cultivar exhibit varying responses to heat stress, with bottom branches performing better in most traits. There are differences in pollen germination, pollen viability, cell membrane thermostability, etc., among different genotypes. This intra-plant variability can be utilized in breeding programs to enhance stress tolerance in resulting varieties.
Article
Biochemistry & Molecular Biology
Jianbin Shi, Jian Wang, Ning Wang, Hong Zhou, Qinghua Xu, Gentu Yan
APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
(2019)
Article
Agronomy
Jianbin Shi, Yibin Zhang, Ning Wang, Qinghua Xu, Feichao Huo, Xiaohong Liu, Gentu Yan
Summary: The genetic diversity and population structure of upland cotton germplasms in China were analyzed using 26 simple sequence repeat (SSR) markers. A total of 92 distinct bands were amplified from 65 SSR markers, with an average of 3.54 bands per marker. Cluster analysis divided the germplasm into 11 groups, with group 1 further divided into 6 subgroups. Structure analysis revealed three distinct populations with gene exchange between them. These findings demonstrate the genetic diversity and complexity of upland cotton germplasm, providing a foundation for targeted breeding.
GENETIC RESOURCES AND CROP EVOLUTION
(2023)