Mapping quantitative trait loci for disease resistance to false smut of rice

Han, Yanqing; Li, Deqiang; Yang, Jun; Huang, Fu; Sheng, Hongyan; Sun, Wenxian

doi:10.1186/s42483-020-00059-6

Cited by 15 publications

(12 citation statements)

References 47 publications

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“…; Li et al 2011; Andargie et al 2018,Han et al 2020) whereas the QTLs on chromosome 7 and 9 were detected for the rst time in this report. Zhou et al 4% phenotypic variance.…”

supporting

confidence: 47%

“…Recently, ve QTLs associated with RFS resistance were mapped on chromosomes 2, 4, 8 and 11 using a RIL population derived from a cross between RFS resistant rice cultivar MR183-2 and highly susceptible rice cultivar 08R2394. Among these, qFSr8-1 accounted larger phenotypic variance (Han et al 2020). Recent progress also suggested that resistance genes (R genes) are responsible for conferring resistance to false smut (Han et al 2020;Qiu et al 2020).…”

Section: Introductionmentioning

confidence: 99%

“…Among these, qFSr8-1 accounted larger phenotypic variance (Han et al 2020). Recent progress also suggested that resistance genes (R genes) are responsible for conferring resistance to false smut (Han et al 2020;Qiu et al 2020). A novel false smut resistance gene FSR1 encoding a DNA methylase 2 (DNMT2) from Nanjing11 on long arm of chromosome 1 was identi ed (Qiu et al 2020).…”

Section: Introductionmentioning

confidence: 99%

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High-resolution mapping of the quantitative trait locus (QTLs) conferring resistance to false smut disease in rice

et al. 2021

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Decoding the genetic mechanisms underlying disease resistance is of great importance for crop improvement. Rice false smut (RFS) is a major fungal disease caused by Ustilaginoidea virens that hampers the grain quality and yield of rice worldwide. It causes 2.8-49% global yield loss depending upon disease severity and varieties grown. In India, the severity of yield loss ranged from 2-75%. Keeping the economic importance of this disease, identi cation of the genes/QTLs governing disease resistance is of prime importance for the development of the linked markers and cloning of the genes. Here, we report mapping of QTLs using a recombinant inbred line (RIL) population derived from a cross between resistant line, RYT2668, and a highly susceptible variety, PR116. The population was evaluated for rice false smut disease under eld conditions for three cropping seasons 2013, 2015, and 2016. A total of seven QTLs were mapped on rice chromosomes 2, 4, 5, 7, and 9 of rice using 2326 single nucleotide polymorphism (SNP) markers. Among them, a novel QTL qRFSr9.1 affecting total smut ball (TSB)/panicle on chromosome 9 exhibited the largest phenotypic effect. The prediction of putative candidate genes within the qRFSr9.1 spanned in 994.1Kb revealed four NBS-LRR domain-containing disease resistance proteins. We identi ed SNPs/Indels associated with the disease resistance which could be used for accelerating breeding programs using marker-assisted selection. In summary, our ndings mark the 'hot-spot' region on rice chromosomes along with the identi cation of disease resistance genes in conferring resistance to the rice false smut disease.

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“…; Li et al 2011; Andargie et al 2018,Han et al 2020) whereas the QTLs on chromosome 7 and 9 were detected for the rst time in this report. Zhou et al 4% phenotypic variance.…”

supporting

confidence: 47%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

High-resolution mapping of the quantitative trait locus (QTLs) conferring resistance to false smut disease in rice

et al. 2021

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“…To the best of author's knowledge, only two reports published that showed the identi cation of disease resistance genes (R genes) against RFS in rice (Han et al 2020, Qiu et al 2020. In this study, we also have reported identi cation of putative disease resistance genes conferring resistance to rice false smut.…”

Section: Disease Resistance Genes Control the Rfs Resistance In Ricementioning

confidence: 66%

High-resolution mapping of the quantitative trait locus (QTLs) conferring resistance to false smut disease in rice

Neelam

Kumar

Kaur

et al. 2021

Preprint

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Decoding the genetic mechanisms underlying disease resistance is of great importance for crop improvement. Rice false smut (RFS) is a major fungal disease caused by Ustilaginoidea virens that hampers the grain quality and yield of rice worldwide. It causes 2.8-49% global yield loss depending upon disease severity and varieties grown. In India, the severity of yield loss ranged from 2-75%. Keeping the economic importance of this disease, identification of the genes/QTLs governing disease resistance is of prime importance for the development of the linked markers and cloning of the genes. Here, we report mapping of QTLs using a recombinant inbred line (RIL) population derived from a cross between resistant line, RYT2668, and a highly susceptible variety, PR116. The population was evaluated for rice false smut disease under field conditions for three cropping seasons 2013, 2015, and 2016. A total of seven QTLs were mapped on rice chromosomes 2, 4, 5, 7, and 9 of rice using 2326 single nucleotide polymorphism (SNP) markers. Among them, a novel QTL qRFSr9.1 affecting total smut ball (TSB)/panicle on chromosome 9 exhibited the largest phenotypic effect. The prediction of putative candidate genes within the qRFSr9.1 spanned in 994.1Kb revealed four NBS-LRR domain-containing disease resistance proteins. We identified SNPs/Indels associated with the disease resistance which could be used for accelerating breeding programs using marker-assisted selection. In summary, our findings mark the ‘hot-spot’ region on rice chromosomes along with the identification of disease resistance genes in conferring resistance to the rice false smut disease.

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“…Host resistance is the most effective and environmentally friendly method to cope with the designated diseases of rice [10]. Considering the economic feasibility, rice diseases have been extensively studied in [11][12][13]. So, the study on the resistance ability of Uttar Lakshmi towards disease and insect pests was important during the release of the variety for extensive cultivation.…”

Section: Reaction To Biotic and Abiotic Stressesmentioning

confidence: 99%

Uttar Lakshmi: A Medium Duration High Yield Potential Rice (Oryza sativa L.) Variety

Roy

Kumar

Rao

2020

JEAI

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Uttar Lakshmi was developed through hybridization between MTU 7029 and Annada followed by selection. It was developed at Uttar Banga Krishi Viswavidyalaya and was recommended by ‘52nd Annual Rice Group Meeting 2017’ for release in Odisha, West Bengal and Tripura, subsequently it has been identified for release by the Variety Identification Committee in the 54th Annual Rice Group Meeting 2019. Consequently Uttar Lakshmi was notified by the ‘Central Variety Release Committee (F. No. 3-74/2019-SD.IV, Sl. No. 4, dated 06.01.2020, Ministry of Agriculture and Farmers Welfare, Department of Agriculture, Cooperation and Farmers Welfare, Government of India)’ for cultivation in Odisha, West Bengal and Tripura. The variety is suitable for Boro season, however it can be cultivated both in Boro (Rabi) and Kharif seasons. It is a medium duration rice variety, days to 50% flowering are 93 and 135 days during Kharif and Rabi seasons, respectively. Time of sowing is mid-November to mid-December during Boro season and May-June during Kharif season. Uttar Lakshmi bears short bold grains with 5.09 mm long kernel, 2.16 mm breadth and 2.27 length-breadth ratio. Hulling, milling and head rice recovery were 76.5%, 66.4% and 55.10%, respectively. Amylose content was 25.6% with medium gel consistency (51.50) indicates separable and soft cooked rice as preferred in India. Grain chalkiness very occasionally present. The variety is resistant to leaf blast, sheath root and bacterial leaf blight. It is also resistant to lodging and shattering. The average yield of Uttar Lakshmi is around 6.0 t/ha.

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Mapping quantitative trait loci for disease resistance to false smut of rice

Cited by 15 publications

References 47 publications

High-resolution mapping of the quantitative trait locus (QTLs) conferring resistance to false smut disease in rice

High-resolution mapping of the quantitative trait locus (QTLs) conferring resistance to false smut disease in rice

High-resolution mapping of the quantitative trait locus (QTLs) conferring resistance to false smut disease in rice

Uttar Lakshmi: A Medium Duration High Yield Potential Rice (Oryza sativa L.) Variety

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