Stable quantitative trait locus (QTL) for sheath blight resistance from rice cultivar CR 1014
| Autor: | Arup Mukherjee, M. K. Kar, Lambodar Behera, T. P. Muhammed Azharudheen, Rashmita Samal, Motilal Behera, Archana Bal, Sarmistha Sarangi, Ansuman Khandual, Soham Ray, Kutubuddin A. Molla, Pankajini Samal, Pritiranjan Sahoo, Mridul Chakraborti, S Lenka |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
0301 basic medicine Genetics Candidate gene education.field_of_study fungi Population food and beverages Plant Science Horticulture Leucine-rich repeat Quantitative trait locus Biology biology.organism_classification 01 natural sciences 03 medical and health sciences 030104 developmental biology Genotype Cultivar Oryza nivara education Agronomy and Crop Science Gene 010606 plant biology & botany |
| Zdroj: | Euphytica. 216 |
| ISSN: | 1573-5060 0014-2336 |
| Popis: | Sheath blight disease of rice causes substantial crop losses and resistance sources are rare. A moderately resistant genotype CR 1014 was identified and hybridized with highly susceptible genotype Swarna-Sub1. In the F2 and F2:3 generations, three QTLs (qShB-1.1, qShB-1.2 and qShB-1.3) were mapped in chromosome-1. In F5 generation of the same cross and F4 generation of an alternative mapping population (Tapaswini/CR 1014), only the major QTL qShB-1.1 was recorded consistently with high LOD score (> 5.0). This stable QTL was co-localized with qShB1 reported earlier from Oryza nivara. A typical leucine rich repeat (LRR) motif containing gene (LOC_Os01g65650) and a chitin-inducible gibberellin-responsive protein coding non-LRR gene (LOC_Os01g65900) located within qShB-1.1 with high expression levels in leaf and shoot were predicted as putative candidate genes among others. Nearly 27.8% reduction in relative lesion height was recorded among several near isogenic lines of Swarna-Sub1 carrying the QTL region from CR 1014. |
| Databáze: | OpenAIRE |
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