Article
Biochemistry & Molecular Biology
Kunjiang Yu, Yuqi He, Yuanhong Li, Zhenhua Li, Jiefu Zhang, Xiaodong Wang, Entang Tian
Summary: This study used a population of recombined inbred lines of Brassica napus to investigate the genetics of seed germination, uncovering a novel major QTL regulating germination. Transcriptome analysis revealed differences in metabolic pathways such as sugar, protein, lipid, and amino acid metabolism between the high germination rate variety 'Holly' and other varieties.
Article
Plant Sciences
Xiaolei Wang, Lingfeng Li, Xiaotang Sun, Jie Xu, Linjuan Ouyang, Jianmin Bian, Xiaorong Chen, Weixing Li, Xiaosong Peng, Lifang Hu, Yicong Cai, Dahu Zhou, Xiaopeng He, Junru Fu, Haihui Fu, Haohua He, Changlan Zhu
Summary: The study detected quantitative trait loci (QTLs) for panicle apical abortion (PAA) in rice using chromosome segment substitution lines (CSSLs), identifying a novel major effector QTL, qPAA7. The research provides a foundation for further cloning and functional characterization of the target gene from this locus.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Plant Sciences
Qing Meng, Zhiyuan Liu, Chunda Feng, Helong Zhang, Zhaosheng Xu, Xiaowu Wang, Jian Wu, Hongbing She, Wei Qian
Summary: In this study, a major quantitative trait locus (QTL) related to early bolting in spinach was identified, and two candidate genes associated with flowering regulatory pathways were proposed. This research provides a basis for understanding the molecular mechanisms of bolting in spinach.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Su-Kui Jin, Li-Na Xu, Qing-Qing Yang, Ming-Qiu Zhang, Shui-Lian Wang, Ruo-An Wang, Tao Tao, Lian-Min Hong, Qian-Qian Guo, Shu-Wen Jia, Tao Song, Yu-Jia Leng, Xiu-Ling Cai, Ji-Ping Gao
Summary: In this study, high-resolution QTL mapping was conducted to identify the genetic regions responsible for rice grain quality traits. A total of 15 QTLs were identified, including one overlapping with previously reported QTLs and the others being novel. These findings will facilitate the fine mapping and pyramiding of these QTLs, leading to genetic improvement of rice grain quality.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Sanjeev Kumar Dhungana, Ji-Hee Park, Jae-Hyeon Oh, Beom-Kyu Kang, Jeong-Hyun Seo, Jung-Sook Sung, Hong-Sik Kim, Sang-Ouk Shin, In-Youl Baek, Chan-Sik Jung
Summary: This study identified 10 QTLs for drought tolerance in soybean using a recombinant inbred line population developed from a cross between a drought-tolerant and a susceptible cultivar. The QTLs were found on seven chromosomes, with some overlapping or located close to previously reported related QTLs and/or potential candidate genes. These QTLs and closely linked markers could be used in marker-assisted selection to accelerate breeding for drought tolerance in soybean.
Article
Multidisciplinary Sciences
Ya-Ching Chou, Ming-Jer Chen, Pi-Hua Chen, Ching-Wen Chang, Mu-Hsien Yu, Yi-Jen Chen, Eing-Mei Tsai, Shih-Feng Tsai, Wun-Syuan Kuo, Chii-Ruey Tzeng
Summary: This study identified novel genetic variants associated with susceptibility to endometriosis in a Taiwanese population through genome-wide association study and replication, while also observing eQTL related to the expression of the INTU gene. The findings suggest that these genetic variants may impact the risk of endometriosis in the Taiwanese population.
SCIENTIFIC REPORTS
(2021)
Article
Agricultural Engineering
Mengna Yu, Rui Zhang, Yajun Liu, Yuan Gu, Guoxia Shang, Yonghai Fan, Miao Liu, Shengting Li, Yuqiao Tang, Chuanfang Wan, Xuli Wu, Cunmin Qu, Jiana Li, Kun Lu
Summary: This study identified a stem bending 1 (stb1) mutant in rapeseed with abnormal stem development and conducted phenotype characterization, genetic analysis, quantitative trait locus mapping, and transcriptome analysis to elucidate the molecular mechanisms involved. The down-regulated genes in the mutant were mainly related to auxin transport and coenzyme metabolism processes, suggesting defects in polar auxin transport as a potential cause for the phenotype of the stb1 mutant. These findings lay a foundation for further investigation into the molecular mechanisms of stem development in rapeseed.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Agronomy
Edward Mwando, Tefera Tolera Angessa, Yong Han, Gaofeng Zhou, Chengdao Li
Summary: The study demonstrated significant impacts of salinity stress on survival traits of barley seedlings, particularly showing pronounced effects on shoot length and seedling vigour index length. QTL analysis revealed multiple genetic loci associated with salinity tolerance, some of which may potentially harbor candidate genes with functional significance.
Article
Microbiology
Abdelraheem Abdelraheem, Yi Zhu, Jinfa Zhang
Summary: This study identified significant genotypic variations for FOV4 resistance in 163 recombinant inbred lines (RILs) of Pima cotton. Five and four quantitative trait loci (QTL) on six chromosomes were detected in two replicated tests, with three QTL in common between the two tests. The heritability estimate for FOV4 resistance was 0.65, indicating a considerable genetic contribution to the phenotypic variation.
Article
Plant Sciences
Xiaohui Zhang, Xiang Li, Huining Li, Zhuanrong Wang, Rui Xia, Jin Hu, Pengfei Wang, Xianming Zhou, Lili Wan, Dengfeng Hong, Guangsheng Yang
Summary: Improving sclerotinia stem rot (SSR) resistance in rapeseed faces three challenges: limited investigation of breeding materials, linkage between SSR resistance and flowering time, and neglect of resistance loci in susceptible materials. This study mapped multiple QTLs for stem resistance, disease index, and flowering time in a doubled haploid population, and proposed a strategy for resistance improvement based on identified QTLs.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Biotechnology & Applied Microbiology
Zhijun Tong, Zhihui Xiu, Yao Ming, Dunhuang Fang, Xuejun Chen, Yafei Hu, Juhong Zhou, Weiming He, Fangchan Jiao, Chi Zhang, Shancen Zhao, Han Jin, Jianbo Jian, Bingguang Xiao
Summary: A genetic map containing 45,081 SNP markers was constructed using whole-genome sequencing data for a tobacco population. QTLs associated with important traits in tobacco were identified, providing insights for molecular breeding applications. BayesB showed the highest prediction accuracy for the recombinant inbred line population in genomic selection models.
PLANT BIOTECHNOLOGY REPORTS
(2021)
Article
Agronomy
Nan Su San, Kazuya Soda, Yosuke Ootsuki, Masahiro Yamashita, Ryoji Karimata, Kasumi Suzuki, Shunsuke Adachi, Toshio Yamamoto, Takanari Tanabata, Tadamasa Ueda, Taiichiro Ookawa, Tadashi Hirasawa
Summary: Improving canopy architecture is a practical way to boost rice productivity, but the genetic control of this trait in rice cultivars is not well understood. Research showed that specific alleles from the high-yielding indica cultivar Takanari contributed to increased dry matter production and leaf inclination angle (LIA) in rice plants, while no corresponding alleles were found in the less productive japonica cultivar Koshihikari. The study also identified multiple quantitative trait loci (QTLs) that could potentially enhance LIA and dry matter production in rice plants.
FIELD CROPS RESEARCH
(2021)
Article
Plant Sciences
Guangfei Zhou, Shunfa Li, Liang Ma, Fang Wang, Fuyan Jiang, Yali Sun, Xinsen Ruan, Yu Cao, Qing Wang, Yingying Zhang, Xingming Fan, Xiquan Gao
Summary: This study identified multiple minor-effect QTLs involved in the genetic component of resistance to Gibberella ear rot (GER), with both additive and epistatic effects contributing to the genetic architecture of resistance. A novel QTL, qGER4.09, was found to potentially confer resistance to multiple pathogens and could be utilized in breeding maize varieties for improved resistance to ear rot diseases.
Article
Plant Sciences
Chenggang Ou, Tingting Sun, Xing Liu, Chengjiang Li, Min Li, Xuewei Wang, Huaifu Ren, Zhiwei Zhao, Feiyun Zhuang
Summary: This study investigates the genomic contribution of wild carrot species to the morphological traits of cultivated carrot storage roots through genomic resequencing and genetic mapping. Five stable QTLs related to root length, root shoulder width, and other traits were identified and explained a significant portion of the phenotypic variation.
Article
Plant Sciences
Hui Hu, Ruoyu Gao, Liping He, Famao Liang, Zhixin Li, Junying Xu, Longwei Yang, Chongrong Wang, Zhangyong Liu, Jianlong Xu, Xianjin Qiu
Summary: This study focused on the ratooning ability of rice and identified several main-effect QTLs, including qRA5 on chromosome 5, which has pleiotropic effects on multiple ratooning-related traits. The results provide important insights into the genetic basis of rice ratooning ability and offer valuable gene resources for breeding high-yield ratoon rice varieties.