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2. Integration of molecular breeding and multi-resistance screening for developing a promising restorer line Guihui5501 with heavy grain, good grain quality, and endurance to biotic and abiotic stresses

Author

Wei, Minyi, primary, Yan, Qun, additional, Huang, Dahui, additional, Ma, Zengfeng, additional, Chen, Shen, additional, Yin, Xiaoting, additional, Liu, Chi, additional, Qin, Yuanyuan, additional, Zhou, Xiaolong, additional, Wu, Zishuai, additional, Lu, Yingping, additional, Yan, Liuhui, additional, Qin, Gang, additional, and Zhang, Yuexiong, additional

Published
2024
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3. Identification of Major Locus Bph35 Resistance to Brown Planthopper in Rice

Author

Zhang Yuexiong, Qin Gang, Ma Qianqian, Wei Minyi, Yang Xinghai, Ma Zengfeng, Liang Haifu, Liu Chi, Li Zhenjing, Liu Fang, Huang Dahui, and Li Rongbai

Subjects
Plant culture, SB1-1110
Abstract

An introgression line RBPH660, derived from wild rice Oryza rufipogon, showed stable resistance to brown planthopper (BPH). Segregation analysis indicated BPH resistance of RBPH660 was controlled by multiple genes/QTLs. By using the bulked segregant analysis (BSA)-seq method, two genomic regions harboring QTLs resistance to BPH were identified from 1.20 to 16.70 Mb on chromosome 4 and from 10.20 to 12.60 Mb on chromosome 9 in RBPH660, respectively. A major resistance locus, designated as Bph35 accounting for 51.27% of the phenotypic variation with a LOD score of 42.51, was mapped to the candidate region of chromosome 4 between InDel (insertion-deletion) markers PSM16 and R4M13. For fine mapping of Bph35, one simple sequence repeat and three newly developed InDel markers were used to screen the recombinants. Finally, the Bph35 locus was delimited in the region from 6.28 to 6.93 Mb and there were 18 predicted protein-encoding genes with a total of 114 non-synonymous single nucleotide polymorphism (SNP) variant sites between the resistant and susceptible parents. Out of these genes, Os04g0193950, encoding a putative NB-ARC (nucleotide- binding adaptor shared by APAF-1, R proteins and CED-4) and LRR (leucine-rich repeat) domain protein with nine non-synonymous SNP substitutions in its coding sequence regions, might be the candidate gene for Bph35. These findings would facilitate the map-based cloning of the Bph35 gene and development of resistant varieties against BPH in rice. Keywords: rice, brown planthopper, Bph35, bulked segregant analysis (BSA)-seq method, gene mapping

Published
2020
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7. Identification of Major Locus Bph35 Resistance to Brown Planthopper in Rice

Author

Li ZhenJing, Huang DaHui, Liu Fang, Li RongBai, MA Qianqian, Liu Chi, Qin Gang, Yang Xinghai, Wei Minyi, Liang Haifu, Zhang YueXiong, and Ma ZengFeng

Subjects
0106 biological sciences, 0301 basic medicine, Genetics, Candidate gene, Bulked segregant analysis, food and beverages, Single-nucleotide polymorphism, Locus (genetics), Plant Science, lcsh:Plant culture, Biology, biology.organism_classification, 01 natural sciences, Oryza rufipogon, 03 medical and health sciences, 030104 developmental biology, Chromosome 4, lcsh:SB1-1110, Brown planthopper, Indel, Agronomy and Crop Science, 010606 plant biology & botany, Biotechnology
Abstract

An introgression line RBPH660, derived from wild rice Oryza rufipogon, showed stable resistance to brown planthopper (BPH). Segregation analysis indicated BPH resistance of RBPH660 was controlled by multiple genes/QTLs. By using the bulked segregant analysis (BSA)-seq method, two genomic regions harboring QTLs resistance to BPH were identified from 1.20 to 16.70 Mb on chromosome 4 and from 10.20 to 12.60 Mb on chromosome 9 in RBPH660, respectively. A major resistance locus, designated as Bph35 accounting for 51.27% of the phenotypic variation with a LOD score of 42.51, was mapped to the candidate region of chromosome 4 between InDel (insertion-deletion) markers PSM16 and R4M13. For fine mapping of Bph35, one simple sequence repeat and three newly developed InDel markers were used to screen the recombinants. Finally, the Bph35 locus was delimited in the region from 6.28 to 6.93 Mb and there were 18 predicted protein-encoding genes with a total of 114 non-synonymous single nucleotide polymorphism (SNP) variant sites between the resistant and susceptible parents. Out of these genes, Os04g0193950, encoding a putative NB-ARC (nucleotide- binding adaptor shared by APAF-1, R proteins and CED-4) and LRR (leucine-rich repeat) domain protein with nine non-synonymous SNP substitutions in its coding sequence regions, might be the candidate gene for Bph35. These findings would facilitate the map-based cloning of the Bph35 gene and development of resistant varieties against BPH in rice. Keywords: rice, brown planthopper, Bph35, bulked segregant analysis (BSA)-seq method, gene mapping

Published
2020

9. Preoperative transcatheter arterial chemotherapy may suppress oxidative stress in hepatocellular carcinoma cells and reduce the risk of short-term relapse

Author

Su, Hao, primary, Zhu, Guangzhi, additional, Djaja P, Ketut Indra, additional, Lin, Yi, additional, Gong, Yizhen, additional, Liu, Xiaoguang, additional, Li, Jiaquan, additional, Liu, Zhiming, additional, Qin, Xiao, additional, Li, Lequn, additional, Liu, Tangwei, additional, Lu, Zili, additional, Wei, Minyi, additional, Yan, Lunan, additional, Winkler, Cheryl Ann, additional, O’Brien, Stephen J., additional, Li, Jing, additional, Xiao, Kaiyin, additional, and Peng, Tao, additional

Published
2017
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10. OsPEX1, a leucine-rich repeat extensin protein, functions in the regulation of caryopsis development and quality in rice

Author

Luan, Xin, Ke, Shanwen, Liu, Shuchun, Tang, Guojian, Huang, Dahui, Wei, Minyi, Zhang, Yuexiong, Qin, Gang, and Zhang, Xiang-Qian

Abstract

Rice caryopses are enclosed by outer glumes. The size and dimension of the outer glume are the main determinants of caryopsis size. However, it is unclear whether caryopsis development is completely dependent on the size of the glume, or whether it can grow and expand autonomously despite the constraint of glume enclosure. We report the identification of a mutant line that produces normal-sized glumes with smaller mature caryopses that do not fill the entire glume cavity. The caryopsis phenotype in the pex1 mutant is caused by a reduction in cell size. OsPEX1, a leucine-rich repeat extensin gene, was highly expressed in the developing caryopsis. Overexpression of OsPEX1driven by a constitutive promoter recapitulated the mutant phenotype, showing that the small-caryopsis phenotype is caused by overexpression of the OsPEX1gene. Free amino acids, including several essential amino acids, and crude protein were increased in pex1relative to the wild type, endowing pex1with improved nutritional quality. Our results suggest that caryopsis development can be genetically uncoupled from maternally controlled glume development and that OsPEX1might be a new resource for improving nutritional quality of rice cultivars.

Published
2021
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