Crotalaria ochroleuca Susceptibility to Heterodera glycines Races
نویسندگان
چکیده
منابع مشابه
Hybridization of races of Heterodera glycines.
Progeny from single females of four known races of Heterodera glycines Ichinohe were used to establish relatively uniform populations. Single females from these populations were mated with males of other races in all possible combinations to study compatibility and inheritance patterns. When race 1 or 3 was crossed with either race 2 or 4, there was a significant reduction in number of females ...
متن کاملSusceptibility of Soybean Introductions to Races 1, 2, 3, and 4 of Heterodera glycines.
Thirteen soybean plant introduction (PI) lines, selected for their apparent susceptibility to Heterodera glycines, were compared with cultivar Lee 74 as hosts of H. glycines races 1, 2, 3, and 4. Race 3 produced the highest average number of females of the four races. Compared to Lee 74, more (P = 0.05) females of H. glycines race 1 were extracted from eI 274420, PI 274423, and PI 317333; PI 86...
متن کاملGenetic structure of races of Heterodera glycines and inheritance of ability to reproduce on resistant soybeans.
Four field populations of Heterodera glycines tested for ability to reproduce on three host differentials were each classified into one of the recognized races. A fifth population represented a new race. Genetic analysis indicated that the designated races are actually field populations that differ from each other primarily in the frequencies of three groups of genes (genes for parasitism) that...
متن کاملGenetic Relationships for Resistance to Heterodera glycines Races 3 and 5 in Soybean.
Heterodera glycines is the most damaging root pathogen of soybean in the United States. Plant introduction (PI) 90.763 is resistant to both races 3 and 5, whereas PI 424.595 is resistant only to race 5. Genetic relationships in these PI lines for resistance to H. glycines are not known. Crosses between PI 90.763 and PI 424.595 and susceptible cv. Essex were studied in the F, F, and F generation...
متن کاملComparative Transcriptome Analysis of Two Races of Heterodera glycines at Different Developmental Stages
The soybean cyst nematode, Heterodera glycines, is an important pest of soybeans. Although resistance is available against this nematode, selection for virulent races can occur, allowing the nematode to overcome the resistance of cultivars. There are abundant field populations, however, little is known about their genetic diversity. In order to elucidate the differences between races, we invest...
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ژورنال
عنوان ژورنال: Journal of Agricultural Science
سال: 2019
ISSN: 1916-9760,1916-9752
DOI: 10.5539/jas.v11n7p205