| Journal: | Genetics and molecular biology |
| Database: | PERIÓDICA |
| System number: | 000424647 |
| ISSN: | 1415-4757 |
| Authors: | Aggarwal, Rashmi1 Kulshreshtha, Deepika1 Sharma, Sapna1 Singh, Vaibhav K1 Manjunatha, Channappa2 Bhardwaj, Subhash C3 Saharan, Mahender S1 |
| Institutions: | 1Indian Agricultural Research Institute, Fungal Molecular Biology Laboratory, Nueva Delhi, Delhi. India 2ICAR Indian Agricultural Research Institute, Regional Station Wellington, Tamil Nadu. India 3Indian Institute of Wheat and Barley Research, Regional Station, Shimla, Himachal Pradesh. India |
| Year: | 2018 |
| Season: | Dic |
| Volumen: | 41 |
| Number: | 4 |
| Pages: | 834-842 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Analítico, descriptivo |
| English abstract | Abstract Stripe rust caused byPuccinia striiformisf. sp.tritici(Pst) is one of the most devastating diseases of wheat (Triticumspp.) worldwide. Indian isolates were characterised based on their phenotypic reaction on differential hosts carryingdifferentYrgenes. Based on virulence/avirulence structure, isolates were characterised into ten different pathotypesviz.70S0-2, 67S64, 70S4, 66S0, 70S64, 66S64-1, 38S102, 47S102, 46S119, and 78S84. These Indian pathotypesofP. striiformisf. sp.triticiand 38 pathotypes of other rust species (P. graminis triticiandP. triticina) were used in this study to analyze their molecular phylogenetic relationship. The nucleotides of rDNA-ITS, partialb-tubulinandketopantoate reductasegenes of all the pathotypes were sequenced directly after PCR. Based on sequence data ofrDNA-ITS andb-tubulin, three phylogenetic groups corresponding to three different species of Pucciniawere ob-tained. Asian isolates formed a distinct evolutionary lineage than from those derived from USA. The sequence similarity of Indian pathotypes with other Asian (China and Iran) isolates indicated the same origin of pathotypes. Theresults will allow rapid identification of Indian P.striiformisf. sp.triticipathotypes causing stripe rust in wheat, assist inmaking predictions regarding potential rust pathotypes, and identifying sources of resistance to the disease in advance |
| Disciplines: | Agrociencias, Biología |
| Keyword: | Fitopatología, Hongos, Evolución y filogenia, Trigo, Roya, Virulencia, Diversidad, Filogenia |
| Keyword: | Phytopathology, Fungi, Evolution and phylogeny, Wheat, Stripe rust, Virulence, Diversity, Phylogeny |
| Full text: | Texto completo (Ver PDF) |
