Construction and evaluation of introgression lines and fine mapping of ehd8 from Jinghong common wild rice ( Oryza rufipogon )

2019 ◽  
Vol 138 (2) ◽  
pp. 163-173 ◽  
Author(s):  
Dayun Sun ◽  
Wenxiang Wang ◽  
Xiaoyun Xin ◽  
Liming Cao ◽  
Xuejun Sun ◽  
...  
Keyword(s):  
Fine Mapping ◽  
Wild Rice ◽  
Introgression Lines ◽  
Oryza Rufipogon ◽  
Common Wild Rice

Identification of the blast resistance gene Picl(t) from Chaling common wild rice ( Oryza rufipogon Griff.)

2020 ◽  
Vol 168 (4) ◽  
pp. 211-219
Author(s):  
Chuanqin Zheng ◽  
Nan Jiang ◽  
Xinhui Zhao ◽  
Tianze Yan ◽  
Jun Fu ◽  
...  
Keyword(s):  
Resistance Gene ◽  
Wild Rice ◽  
Blast Resistance ◽  
Oryza Rufipogon ◽  
Blast Resistance Gene ◽  
Common Wild Rice ◽  
Oryza Rufipogon Griff

Identification of heat-sensitive QTL derived from common wild rice (Oryza rufipogon Griff.)

Plant Science ◽  
2013 ◽  
Vol 201-202 ◽  
pp. 121-127 ◽  
Author(s):  
Dongyang Lei ◽  
Lubin Tan ◽  
Fengxia Liu ◽  
Liyun Chen ◽  
Chuanqing Sun
Keyword(s):  
Wild Rice ◽  
Oryza Rufipogon ◽  
Common Wild Rice ◽  
Oryza Rufipogon Griff

scholarly journals <i>In Situ</i> Conservation of Wild Rice Populations: A Targeted Study of Common Wild Rice <i>Oryza rufipogon</i> from China

2012 ◽  
Vol 03 (07) ◽  
pp. 854-868 ◽  
Author(s):  
Li-Zhi Gao ◽  
Dao-Yuan Li ◽  
Xian-Qiang Wu ◽  
Wen Chen ◽  
Zhen-Man Huang ◽  
...  
Keyword(s):  
Wild Rice ◽  
Oryza Rufipogon ◽  
Common Wild Rice

Application of SV markers developed from Dongxiang common wild rice in analysis of cultivated rice

2019 ◽  
Vol 17 (5) ◽  
pp. 448-451
Author(s):  
Fantao Zhang ◽  
Yuan Luo ◽  
Bin Ai ◽  
Yong Chen ◽  
Weidong Qi ◽  
...  
Keyword(s):  
Wild Rice ◽  
Oryza Rufipogon ◽  
Genomic Research ◽  
Cultivated Rice ◽  
Structural Variations ◽  
Rice Varieties ◽  
Common Wild Rice ◽  
Genome Wide ◽  
Rice Chromosomes ◽  
Molecular Marker Development

AbstractDongxiang common wild rice (Oryza rufipogon Griff., DXWR) is an important genetic resource for the improvement of cultivated rice. For the past three decades, great achievements have been made in the field of molecular marker development. Although structural variations (SVs) had been studied between DXWR and Nipponbare (Oryza sativa L. ssp. japonica), the development and application of SV markers in DXWR has not been reported. In this study, based on the genome-wide SV loci, we developed and synthesized a total of 195 SV markers that were evenly distributed across the 12 rice chromosomes. Then, these markers were tested for their stabilities and polymorphisms. Of these 195 markers, 147 (75.4%) were successfully amplified and displayed abundant polymorphisms between DXWR and Nipponbare. Meanwhile, through the genotyping of 20 rice varieties from 13 countries and areas, we concluded that these SV markers have a wide application prospect in the analysis of cultivated rice. Therefore, these molecular markers greatly enrich the number of markers available for DXWR, which will facilitate genomic research and molecular breeding for this important and endangered germplasm resource.

Identification and Fine-mapping of a New Bacterial Blight Resistance Gene, Xa47(t), in G252, an Introgression Line of Yuanjiang Common Wild Rice (Oryza rufipogon)

Plant Disease ◽  
2021 ◽  
Author(s):  
Jiaxin Xing ◽  
Dunyu Zhang ◽  
Fuyou Yin ◽  
Qiaofang Zhong ◽  
Bo Wang ◽  
...  
Keyword(s):  
Resistance Gene ◽  
Wild Rice ◽  
Bacterial Blight ◽  
Introgression Line ◽  
Physical Region ◽  
Segregation Ratio ◽  
Oryza Rufipogon ◽  
Chromosome 11 ◽  
Effective Measure ◽  
Common Wild Rice

Bacterial blight (BB) disease caused by Xanthomonas oryzae pv. oryzae (Xoo) is a common, widespread, and highly devastating disease that affects rice yield. Breeding resistant cultivars is considered the most effective measure for controlling this disease. The introgression line G252 derived from Yuanjiang common wild rice (Oryza rufipogon) was highly resistant to all tested Xoo strains, including C5, C9, PXO99, PB, T7147Y8, Hzhj19, YM1, YM187, YJdp-2, and YJws-2. To identify the BB resistance gene(s) of G252, we developed an F2 population from the cross between G252 and 02428. A linkage analysis was carried out between the phenotype and genotype in the population. A segregation ratio of 3:1 was observed between the resistant and susceptible individuals in F2 progeny, indicating a dominant resistance gene, Xa47(t), in G252. The resistance gene was mapped within an approximately 26.24 kb physical region on chromosome 11 between two InDel markers, R13I14 and 13rbq-71; and moreover, one InDel marker, Hxjy-1, co-segregated with Xa47(t). Three genes were predicted within the target region, including a promising candidate gene encoding a nucleotide-binding domain and leucine-rich repeat (NLR) protein (LOC_Os11g46200) by combining the structure and expression analysis. Physical mapping data suggested that Xa47(t) was a new broad-spectrum BB resistance gene.

scholarly journals Identification and Functional Analysis of Flowering Related microRNAs in Common Wild Rice (Oryza rufipogon Griff.)

PLoS ONE ◽  
2013 ◽  
Vol 8 (12) ◽  
pp. e82844 ◽  
Author(s):  
Zongxiang Chen ◽  
FuLi Li ◽  
Songnan Yang ◽  
Yibo Dong ◽  
Qianhua Yuan ◽  
...  
Keyword(s):  
Functional Analysis ◽  
Wild Rice ◽  
Oryza Rufipogon ◽  
Common Wild Rice ◽  
Oryza Rufipogon Griff

scholarly journals Development of Chromosome Segment Substitution Lines (CSSLs) Derived from Guangxi Wild Rice (Oryza rufipogon Griff.) under Rice (Oryza sativa L.) Background and the Identification of QTLs for Plant Architecture, Agronomic Traits and Cold Tolerance

Genes ◽  
2020 ◽  
Vol 11 (9) ◽  
pp. 980
Author(s):  
Ruizhi Yuan ◽  
Neng Zhao ◽  
Babar Usman ◽  
Liang Luo ◽  
Shanyue Liao ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Fine Mapping ◽  
Wild Rice ◽  
Oryza Rufipogon ◽  
Chromosome Segment ◽  
Substitution Lines ◽  
Chromosome Segment Substitution Lines ◽  
Genome Wide ◽  
Oryza Rufipogon Griff ◽  
Segment Substitution

Common wild rice contains valuable resources of novel alleles for rice improvement. It is well known that genetic populations provide the basis for a wide range of genetic and genomic studies. In particular, chromosome segment substitution lines (CSSLs) ais a powerful tool for fine mapping of quantitative traits, new gene discovery and marker-assisted breeding. In this study, 132 CSSLs were developed from a cultivated rice (Oryza sativa) cultivar (93-11) and common wild rice (Oryza rufipogon Griff. DP30) by selfing-crossing, backcrossing and marker-assisted selection (MAS). Based on the high-throughput sequencing of the 93-11 and DP30, 285 pairs of Insertion-deletions (InDel) markers were selected with an average distance of 1.23 Mb. The length of this DP30-CSSLs library was 536.4 cM. The coverage rate of substitution lines cumulatively overlapping the whole genome of DP30 was about 91.55%. DP30-CSSLs were used to analyze the variation for 17 traits leading to the detection of 36 quantitative trait loci (QTLs) with significant phenotypic effects. A cold-tolerant line (RZ) was selected to construct a secondary mapping F2 population, which revealed that qCT2.1 is in the 1.7 Mb region of chromosome 2. These CSSLs may, therefore, provide powerful tools for genome wide large-scale gene discovery in wild rice. This research will also facilitate fine mapping and cloning of QTLs and genome-wide study of wild rice. Moreover, these CSSLs will provide a foundation for rice variety improvement.

Sign in / Sign up

Export Citation Format

Share Document