Inheritance of blast resistance in rice to two Pyricularia grisea races, IB-1 and IB-9
نویسندگان
چکیده
منابع مشابه
Inheritance of dsRNAs in the rice blast fungus, Magnaporthe grisea.
The 1.6 and 1.8 kbp dsRNAs have been found in the rice blast fungus, Magnaporthe grisea strain MG01. These dsRNA molecules are located in cytoplasm of the fungal cells and maintained stably during vegetative growth. Three crosses between dsRNA free and dsRNA containing strains including a parental cross, sib-mating and back cross were made to follow the inheritance of dsRNAs during sexual repro...
متن کاملComparative analyses of genomic locations and race specificities of loci for quantitative resistance to Pyricularia grisea in rice and barley.
Comparative genomic analyses have revealed extensive colinearity in gene orders in distantly related taxa in mammals and grasses, which opened new horizons for evolutionary study. The objective of our study was to assess syntenic relationships of quantitative trait loci (QTL) for disease resistance in cereals by using a model system in which rice and barley were used as the hosts and the blast ...
متن کاملVirulence and rep-PCR Analysis of Pyricularia grisea Isolates from Two Brazilian Upland Rice Cultivars
The phenotypic and genetic diversity of 77 isolates of Pyricularia grisea collected from two upland rice cultivars, Maravilha and Primavera, was studied. Isolates exhibiting compatible reaction to cv.Primavera were incompatible to cv.Maravilha and vice versa, with the exception of six isolates that were compatible to both cultivars. The virulence of isolates from cv. Maravilha on 32 test genoty...
متن کاملGENETIC AND PHENOTYPIC CHARACTERIZATION OF ISOLATES OF Pyricularia grisea FROM THE RICE CULTIVARS EPAGRI 108 AND 109 IN THE STATE OF TOCANTINS
An epidemic of rice (Oryza sativa) blast occurred on cultivars Epagri 108 and 109 in the municipalities of Lagoa da Confusão and Duerê in the State of Tocantins, during the rice-growing season 199899. DNA fingerprinting and virulence phenotype analysis were utilized to determine the diversity of Pyricularia grisea isolates collected from these cultivars in one epidemic year. Rep-PCR analysis of...
متن کاملRice Pi-ta gene Confers Resistance to the Major Pathotypes of the Rice Blast Fungus in the United States.
ABSTRACT The Pi-ta gene in rice prevents the infection by Magnaporthe grisea strains containing the AVR-Pita avirulence gene. The presence of Pi-ta in rice cultivars was correlated completely with resistance to two major pathotypes, IB-49 and IC-17, common in the U.S. blast pathogen population. The inheritance of resistance to IC-17 was investigated further using a marker for the resistant Pi-t...
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ژورنال
عنوان ژورنال: Brazilian Journal of Genetics
سال: 1996
ISSN: 0100-8455
DOI: 10.1590/s0100-84551996000400012