User Settings
Article

КАРТИРОВАНИЕ ЛОКУСОВ, КОНТРОЛИРУЮЩИХ УСТОЙЧИВОСТЬ ЯЧМЕНЯ К РАЗЛИЧНЫМ ИЗОЛЯТАМ PYRENOPHORA TERES F. TERES И COCHLIOBOLUS SATIVUS

О. С. Афанасенко,A. V. Koziakov,П. Хедлэй,Н. М. Лашина,А. В. Анисимова,Outi Manninen+2 more-2015-01-19
1

TL;DRAbstract

Net blotch of barley ( Hordeum vulgare L.), caused by Pyrenophora teres f. teres , and spot blotch, caused by Cochliobolus sativus, are the most widespread and harmful diseases in the geographic range of the crop. Barley breeding for resistance to these diseases should employ a large genetic diversity. The 11_11067 SNP marker was revealed on chromosome 6H position 58 cM in double haploid (DH) population A developed by crossing of the Ethiopian accession c-23874, highly resistant to  P. teres f. teres , to the susceptible Pirkka cultivar. It was reliably ( р < 0.05) associated with resistance to three P. teres f. teres isolates. In population B (Zernogradsky 813 (MR to  C. sativus ) × Ranniy 1 (MR to P. teres f. teres ), 11 QTLs controlling resistance to 12 P. teres f. teres isolates were found on all barley chromosomes and 14 QTLs for resistance to 12 C. sativus isolates, on all chromosomes except for 4H. For both pathogens, the revealed QTLs were shown to be isolate-specific. The majo

Chat with Paper

AI Agents for this Paper

Net blotch of barley ( Hordeum vulgare L.), caused by Pyrenophora teres f. teres , and spot blotch, caused by Cochliobolus sativus, are the most widespread and harmful diseases in the geographic range of the crop. Barley breeding for resistance to these diseases should employ a large genetic diversity. The 11_11067 SNP marker was revealed on chromosome 6H position 58 cM in double haploid (DH) population A developed by crossing of the Ethiopian accession c-23874, highly resistant to  P. teres f. teres , to the susceptible Pirkka cultivar. It was reliably ( р < 0.05) associated with resistance to three P. teres f. teres isolates. In population B (Zernogradsky 813 (MR to  C. sativus ) × Ranniy 1 (MR to P. teres f. teres ), 11 QTLs controlling resistance to 12 P. teres f. teres isolates were found on all barley chromosomes and 14 QTLs for resistance to 12 C. sativus isolates, on all chromosomes except for 4H. For both pathogens, the revealed QTLs were shown to be isolate-specific. The majo

Keywords

Cochliobolus sativusBiologyPopulationDoubled haploidyHordeum vulgareQuantitative trait locusChromosomeGenetics

Chat

Click to start Chat