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http://krishi.icar.gov.in/jspui/handle/123456789/44549| Title: | Identification of novel QTLs for late leaf spot resistance and validation of a major rust QTL in peanut (Arachis hypogaea L.) |
| Other Titles: | Not Available |
| Authors: | Suhail Ahmad Bhagwat Nawade Chandramohan Sangh GP Mishra TC Bosamia Radhakrishnan T Narendra Kumar JR Dobaria HP Gajera |
| ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
| Author's Affiliated institute: | ICAR::Directorate of Groundnut Research Junagadh Agricultural University, Junagadh, Gujarat, India ICAR::Indian Agricultural Research Institute |
| Published/ Complete Date: | 2020-09-30 |
| Project Code: | Not Available |
| Keywords: | Expressed sequence tag, Foliar-fungal disease, Groundnut, LLS, QTL mapping |
| Publisher: | Springer |
| Citation: | Ahmad, S., Nawade, B., Sangh, C. et al. Identification of novel QTLs for late leaf spot resistance and validation of a major rust QTL in peanut (Arachis hypogaea L.). 3 Biotech 10, 458 (2020). https://doi.org/10.1007/s13205-020-02446-4 |
| Series/Report no.: | Not Available; |
| Abstract/Description: | Co-occurrence of two devastating foliar-fungal diseases of peanut, viz., late leaf spot (LLS), and rust may cause heavy yield loss besides adversely affecting the quality of kernel and fodder. This study reports the mapping of seven novel stress related candidate EST-SSRs in a region having major QTLs for LLS and rust diseases using an F2 mapping population (GJG17 × GPBD4) consisting of 328 individuals. The parental polymorphism using 1311 SSRs revealed 84 SSRs (6.4%) as polymorphic and of these 70 SSRs could be mapped on 14 linkage groups (LG). QTL analysis has identified a common QTL (LLSQTL1/RustQTL) for LLS and rust diseases in the map interval of 1.41 cM on A03 chromosome, explaining 47.45% and 70.52% phenotypic variations, respectively. Another major QTL for LLS (LLSQTL1), explaining a 29.06% phenotypic variation was also found on LG_A03. A major rust QTL has been validated which was found harboring R-gene and resistance-related genes having a role in inducing hypersensitive response (HR). Further, 23 linked SSRs including seven novel EST-SSRs were also validated in 177 diverse Indian groundnut genotypes. Twelve genotypes resistant to both LLS and rust were found carrying the common (rust and LLS) QTL region, LLS QTL region, and surrounding regions. These identified and validated candidate EST-SSR markers would be of great use for the peanut breeding groups working for the improvement of foliar-fungal disease resistance. |
| Description: | Not Available |
| ISSN: | 2190-572X |
| Type(s) of content: | Research Paper |
| Sponsors: | Not Available |
| Language: | English |
| Name of Journal: | Biotech-3 |
| NAAS Rating: | 7.8 |
| Volume No.: | 10:458 |
| Page Number: | 1-13 |
| Name of the Division/Regional Station: | Crop Improvement |
| Source, DOI or any other URL: | https://doi.org/10.1007/s13205-020-02446-4 |
| URI: | http://krishi.icar.gov.in/jspui/handle/123456789/44549 |
| Appears in Collections: | CS-DGR-Publication |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Identification of novel QTLs for late leaf spot resistance.pdf | 435.77 kB | Adobe PDF | View/Open |
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