A5066224536- Genetic Mapping and Diversity in Plants and Animals
- GABA and Rice Research
- Rice Cultivation and Yield Improvement
- Plant tissue culture and regeneration
- Food composition and properties
- Genetic and phenotypic traits in livestock
- Wheat and Barley Genetics and Pathology
- Plant nutrient uptake and metabolism
- Plant Micronutrient Interactions and Effects
- Biofuel production and bioconversion
- Mycotoxins in Agriculture and Food
- Seed and Plant Biochemistry
- CRISPR and Genetic Engineering
- Genetics and Plant Breeding
- Fungal and yeast genetics research
Huazhong Agricultural University
2018-2024
Guangdong Academy of Agricultural Sciences
2022
Grain chalkiness reduces the quality of rice (Oryza sativa) and is a highly undesirable trait for breeding marketing. However, underlying molecular cause remains largely unknown. Here, we cloned F-box gene WHITE-CORE RATE 1 (WCR1), which negatively regulates grain improves in rice. A functional A/G variation promoter region WCR1 generates alleles WCR1A WCR1G, originated from tropical japonica wild Oryza rufipogon, respectively. OsDOF17 transcriptional activator that binds to AAAAG cis-element...
Rice seed storage protein (SSP) is an important source of nutrition and energy. Understanding the genetic basis SSP content mining favorable alleles that control it will be helpful for breeding new improved cultivars. An association analysis was performed to identify underlying genes using 527 diverse Oryza sativa accessions grown in two environments. We identified more than 107 associations five different traits, including contents albumin (Alb), globulin (Glo), prolamin (Pro), glutelin...
Global food security has benefited from the development and promotion of two-line hybrid rice system. Excellent eating quality determines market competitiveness varieties based on achieving fundamental requirements high yield good adaptability. Developing sterile restorer lines with improved for breeding by editing genes clustered regularly interspaced short palindromic repeat (CRISPR)/Cas9 is an efficient practical alternative to lengthy laborious process conventional improve quality. We...
Grain size, which encompasses grain length, width, and thickness, is a critical determinant of both weight quality in rice. Despite the extensive regulatory networks known to determine length pathway(s) that regulate thickness remain be clarified. Here, we present map-based cloning characterization qGT3, major quantitative trait locus for rice encodes MADS-domain transcription factor OsMADS1. Our findings demonstrate OsMADS1 regulates by affecting sugar delivery during filling, show...
Proteins, the second-largest storage substance in rice endosperm, play an important role determining cooking and eating qualities of rice. Its contents are influenced by both genetic environmental factors. This article provides a review evaluation methods for starch physicochemical properties, factors that affect protein content rice, basis content, research progress made improvement prospects future, aiming to provide reference breeding varieties with excellent taste.
Grain size is a key determinant of both grain weight and quality. Here, we report the map-based cloning novel quantitative trait locus (QTL), GLW7.1 (Grain Length, Width Weight 7.1), which encodes CCT motif family protein, GHD7. The QTL located in 53 kb deletion fragment cultivar Jin23B, compared with CR071. Scanning electron microscopy analysis expression revealed that promotes transcription several cell division expansion genes, further resulting larger increased number, finally enhancing...
Nutritional grain quality is mainly influenced by the protein fraction content and content. Quantitative trait loci (QTL) mining for five traits, about 245 284 BC3F3 individual families of two introgression line (IL) populations were derived from Kongyu 131/Cypress (population-I) 131/Vary Tarva Osla (population-II), respectively. A genetic linkage map was developed using 127 simple sequence repeat (SSR) markers in population-I 119 SSR population-II. In total, 20 5 QTLs detected...
The quality of rice, evaluated using multiple quality-related traits, is the main determinant its market competitiveness. In this study, two japonica rice varieties with significant differences in traits were used as parents to construct populations, BC3F2 and BC3F2:3, Kongyu131 (KY131) recurrent parent. A genetic linkage map was constructed population based on 151 pairs SSR/InDel polymorphic markers selected between parents. Grain-shape-related (grain length GL, grain width GW,...
Rice blast caused by Magnaporthe oryzae is one of the most serious rice diseases worldwide. The early indica thermosensitive genic male sterile (TGMS) line HD9802S has characteristics stable fertility, reproducibility, a high outcrossing rate, excellent quality, and strong combining ability. However, this exhibits poor resistance highly susceptible to leaf neck blasts. In study, backcross introduction, molecular marker-assisted selection, gene chipping, anther culture, identification in...
Rice (Oryza sativa L.) chalkiness greatly reduces the rice quality and commercial value. In this study, qWCR4, a previously reported quantitative trait locus (QTL) of white-core rate (WCR), was confirmed by BC5F2 segregation population further fine mapped to 35.26 kb region. qWCR4 region, LOC_Os04g50060 LOC_Os04g50070 showed significant differences in expression level endosperm between two NILs, whereas four other genes had no expression. Starch granules central chalky grains from NIL(J23B)...
Abstract Zinc (Zn) is an essential micronutrient for human, and improving Zn concentration in rice could be a simple effective way to solve insufficient uptake from daily diet. In this study, recombinant inbred line (RIL) population was developed commercial hybrid combination Wandao153, subjected quantitative trait loci (QTL) detection brown heading date. Five QTL six date were detected across 2 years, among which two co-located on chromosome 7 8, respectively. The 7, qZn7 qHd7 , likely Ghd7...
Abstract As a staple food for more than half of the world’s population, importance rice is self-evident. Compared with ordinary rice, cultivars superior eating quality and appearance are popular consumers due to its unique taste ornamental value, even if their price much higher. Appearance CEQ (cooking quality) two very important aspects in evaluation quality. Here, we performed genome-wide association study on chalkiness rate diverse panel 533 cultivated accessions. We identified batch...
Abstract The grain protein content (GPC) of rice is an important factor that determines its nutritional, cooking, and eating qualities. To date, some genes affecting GPC have been identified in rice, most which cloned using mutants. A few controlling the natural population. Here, 135 significant association loci were detected a genome-wide associated study (GWAS), many could be repeatedly across different years populations. Four minor quantitative trait at four loci, qPC1.1 , qPC1.2 qPC1.3...