Publications by authors named "Prashant G Golegaonkar"
Article Synopsis
- - Leaf rust in barley, caused by the pathogen Puccinia hordei, can lead to significant yield losses, particularly under epidemic conditions, despite not causing total crop loss.
- - The disease affects various barley species and is becoming more prevalent due to modern agricultural practices, with reductions in yield reported up to 62% for susceptible varieties.
- - Control of leaf rust primarily relies on using resistant cultivars, with 21 identified seedling resistance genes and ongoing research into durable resistance strategies, including adult plant resistance (APR).
Seedlings of 62 Australian barley cultivars and two exotic barley genotypes were assessed for resistance to a variant of Puccinia striiformis, referred to as "Barley Grass Stripe Rust" (BGYR), first detected in Australia in 1998, which is capable of infecting wild Hordeum species and some genotypes of cultivated barley. Fifty-three out of 62 cultivated barley cultivars tested were resistant to the pathogen. Genetic analyses of seedling resistance to BGYR in six Australian barley cultivars and one Algerian barley landrace indicated that they carried either one or two major resistance genes to the pathogen.
View Article and Find Full Text PDFMolecular mapping of leaf rust resistance gene Rph14 in Hordeum vulgare.
Theor Appl Genet
November 2009
An incompletely dominant gene conferring resistance to Puccinia hordei, Rph14, identified previously in an accession of Hordeum vulgare, confers resistance to all known pathotypes of P. hordei in Australia. Knowledge of the chromosomal location of Rph14 and the identification of DNA markers closely linked to it will facilitate combining it with other important leaf rust resistance genes to achieve long lasting resistance.
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