ArticleRice (New York, N.Y.)2018
Accelerated molecular breeding of a novel P/TGMS line with broad-spectrum resistance to rice blast and bacterial blight in two-line hybrid rice.
Article in Rice (New York, N.Y.), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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12 citing papers in PubMed, 38 citations in OpenAlex.
- Gene pyramiding ofMolecular breeding : new strategies in plant improvement · 2024Article
- Article
- Pyramiding of Multiple Genes to Improve Rice Blast Resistance of Photo-Thermo Sensitive Male Sterile Line, without Yield Penalty in Hybrid Rice Production.Plants (Basel, Switzerland) · 2023Article
- Introgression Lines: Valuable Resources for Functional Genomics Research and Breeding in Rice (Frontiers in plant science · 2022Review
- Recent Progress in Rice Broad-Spectrum Disease Resistance.International journal of molecular sciences · 2021Review
- Genomic Approaches to Identify Molecular Bases of Crop Resistance to Diseases and to Develop Future Breeding Strategies.International journal of molecular sciences · 2021Review
- Eighty years of gene-for-gene relationship and its applications in identification and utilization ofJournal of genetics · 2021Review
- Identification of Novel Alleles of the Rice Blast-Resistance Gene Pi9 through Sequence-Based Allele Mining.Rice (New York, N.Y.) · 2020Article
- Prevalence of Ineffective Haplotypes at the Rice Blast Resistance (R) Gene Loci in Chinese Elite Hybrid Rice Varieties Revealed by Sequence-Based Molecular Diagnosis.Rice (New York, N.Y.) · 2020Article
- Improvement of rice blast resistance by developing monogenic lines, two-gene pyramids and three-gene pyramid through MAS.Rice (New York, N.Y.) · 2019Article
- Improving rice blast resistance of Feng39S through molecular marker-assisted backcrossing.Rice (New York, N.Y.) · 2019Article
- Expression Profile of Defense Genes in Rice Lines Pyramided with Resistance Genes Against Bacterial Blight, Fungal Blast and Insect Gall Midge.Rice (New York, N.Y.) · 2018Article
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8 authors at 1 institution in 1 country.
Funding
Abstract
backgroundBreeding two-line hybrid rice with disease resistance is an effective approach to stabilize rice yield in commercial rice production of China.
resultsWe improved the blast and bacterial blight resistance of Guangzhan63-4S, an elite photoperiod- and thermo-sensitive male sterile (P/TGMS) line widely used in two-line hybrid rice, by introducing the R genes Pi2 and Xa7 conferring resistance to rice blast and bacterial blight, respectively. Through the backcrossing and gene pyramiding breeding coupled with molecular marker-assisted selection, a new P/TGMS line Hua1228S carrying Pi2, Xa7, and tms5 was developed. Based on 200,000 SNP markers by next-generation sequencing, Hua1228S covered 87.6% of the recurrent genome, as well as 4.5% of the donor genome from VE6219 and 7.9% from YR7029-39. When infected with seven tested Xanthomonas oryzae pv. oryzae strains, Hua1228S conferred high resistance (0 level) to six bacterial blight strains. Moreover, Hua1228S showed broad-spectrum resistance to rice blast isolates with a high resistance frequency of 90.91%. High levels of resistance to leaf blast and neck blast were observed under heavy disease pressure in natural field. Importantly, Hua1228S showed identical fertility-sterility alteration pattern to Guangzhan63-4S. Thus, two hybrid combinations Hua Liangyou 2821 and Hua Liangyou 284 derived from Hua1228S exhibited enhanced resistance and higher yield compared with the control variety Feng Liangyou 4.
conclusionsThese results indicate that Hua1228S has tremendous potentiality to increase and stabilize the rice yield, through the introgression of two R genes by marker-assisted selection strategy.
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