Fitness benefits play a vital role in the retention of the Pi-ta susceptible alleles. [PDF]
Genetics, 2022 Abstract In plants, large numbers of R genes, which segregate as loci with alternative alleles conferring different levels of disease resistance to pathogens, have been maintained over a long period of evolution. The reason why hosts harbor susceptible alleles in view of their null contribution to resistance is unclear.
Liu J +9 more
europepmc +3 more sources
In silico molecular and morphological analysis of rice blast resistant gene Pi-ta in Sri Lankan rice germplasm. [PDF]
J Genet Eng Biotechnol, 2021 Pi-ta is a major blast resistant gene, introgressed from indica rice varieties. In this study, diversity of the Pi-ta gene of 47 Sri Lankan rice accessions was studied by bioinformatics, and the results were validated with molecular and disease reaction assays.
Terensan S +5 more
europepmc +5 more sources
Statistical inference of selection and divergence of the rice blast resistance gene Pi-ta. [PDF]
G3 (Bethesda), 2014 AbstractThe resistance gene Pi-ta has been effectively used to control rice blast disease, but some populations of cultivated and wild rice have evolved resistance. Insights into the evolutionary processes that led to this resistance during crop domestication may be inferred from the population history of domesticated and wild rice strains.
Amei A, Lee S, Mysore KS, Jia Y.
europepmc +4 more sources
Identifying mutations in sd1, Pi54 and Pi-ta, and positively selected genes of TN1, the first semidwarf rice in Green Revolution. [PDF]
Bot Stud, 2022 AbstractBackgroundTaichung Native 1 (TN1) is the first semidwarf rice cultivar that initiated the Green Revolution. As TN1 is a direct descendant of the Dee-geo-woo-gen cultivar, the source of the sd1 semidwarf gene, the sd1 gene can be defined through TN1.
Panibe JP +4 more
europepmc +5 more sources
Molecular evolution of the rice blast resistance gene Pi-ta in invasive weedy rice in the USA. [PDF]
PLoS One, 2011 The Pi-ta gene in rice has been effectively used to control rice blast disease caused by Magnaporthe oryzae worldwide. Despite a number of studies that reported the Pi-ta gene in domesticated rice and wild species, little is known about how the Pi-ta gene has evolved in US weedy rice, a major weed of rice.
Lee S +5 more
europepmc +7 more sources
Exploring Distribution and Evolution of Pi-ta Haplotypes in Rice Landraces across Different Rice Cultivation Regions in Yunnan. [PDF]
Genes (Basel)Background: Rice blast, caused by Magnaporthe oryzae, seriously damages the yield and quality of rice worldwide. Pi-ta is a durable resistance gene that combats M. oryzae carrying AVR-Pita1. However, the distribution of the Pi-ta gene in rice germplasms in Yunnan Province has been inadequately studied.
Luo H +9 more
europepmc +3 more sources
Natural Variation at the Pi-ta Rice Blast Resistance Locus [PDF]
Phytopathology®, 2003 The resistance gene Pi-ta protects rice crops against the fungal pathogen Magnaporthe grisea expressing the avirulence gene AVR-Pita in a gene-for-gene manner. Pi-ta, originally introgressed into japonica rice from indica origin, was previously isolated by positional cloning. In this study, we report the nucleotide sequence of a 5,113-base pair region
Yulin, Jia +3 more
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A Telomeric Avirulence Gene Determines Efficacy for the Rice Blast Resistance Gene Pi-ta [PDF]
The Plant Cell, 2000 Genetic mapping showed that the rice blast avirulence gene AVR-Pita is tightly linked to a telomere on chromosome 3 in the plant pathogenic fungus Magnaporthe grisea. AVR-Pita corresponds in gene-for-gene fashion to the disease resistance (R) gene Pi-ta.
M J, Orbach +4 more
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Effectiveness and durability of the ricePi-tagene in Yunnan province of China [PDF]
Phytopathology, 2014 Rice blast is one of the most damaging diseases of rice worldwide. In the present study, we analyzed DNA sequence variation of avirulence (AVR) genes of AVR-Pita1 in field isolates of Magnaporthe oryzae in order to understand the effectiveness of the resistance gene Pi-ta in China. Genomic DNA of 366 isolates of M.
Jinbin, Li +3 more
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Haplotype Diversity at the Pi-ta Locus in Cultivated Rice and Its Wild Relatives [PDF]
Phytopathology®, 2008 The Pi-ta gene in rice confers resistance to races of Magnaporthe oryzae that contain AVR-Pita. Pi-ta encodes a predicted cytoplasmic receptor protein with a nucleotide-binding site and a leucine-rich domain. A panel of 51 Oryza accessions of AA genome species Oryza sativa, O. glaberrima, O. rufipogon, O. nivara, and O.
X, Wang, Y, Jia, Q Y, Shu, D, Wu
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