| genome-wide association study in wheat identifies resistance to the cereal cyst nematode heterodera filipjevi. | the cyst nematode heterodera filipjevi is a plant parasite causing substantial yield loss in wheat. resistant cultivars are the preferred method of controlling cyst nematodes. association mapping is a powerful approach to detect associations between phenotypic variation and genetic polymorphisms; in this way favorable traits such as resistance to pathogens can be located. therefore, a genome-wide association study of 161 winter wheat accessions was performed with a 90k iselect single nucleotide ... | 2016 | 27552283 |
| effect of different potting systems; inoculation time; nematode density and sources of cereal cyst nematode (heterodera filipjevi) on juvenile penetration into wheat root system. | investigations were designed to optimize testing systems for screening wheat breeding lines for resistance to heterodera filipjevi. the effects of: 1) plant potting systems 2) inoculum level and time of inoculation 3) and type of inoculum of h. filipjevi on detection accuracy were examined in growth chamber experiments in turkey. the rate of nematode penetration in the highly susceptible variety bezostaya was used as the base measurement of efficacy. the results showed that the highest level of ... | 2010 | 21539268 |
| distinguishing heterodera filipjevi and h. avenae using polymerase chain reaction-restriction fragment length polymorphism and cyst morphology. | the cereal cyst nematodes heterodera filipjevi and h. avenae impede wheat production in the pacific northwest (pnw). accurate identification of cyst nematode species and awareness of high population density in affected fields are essential for designing effective control measures. morphological methods for differentiating these species are laborious. these species were differentiated using polymerase chain reaction restriction fragment length polymorphism (pcr-rflp) of internal transcribed space ... | 2010 | 20128694 |
| morphology and morphometrics of heterodera filipjevi (madzhidov, 1981) steller, 1984 from kohgiluyeh and boyer-ahmad province, iran. | during 2007 and 2008, soil samples of wheat and barley fields of the cold regions of the kohgiluyeh and boyer-ahmad province were surveyed for cereal cyst nematode. in 65% of samples cysts were seen. morphological and morphometrics of cysts, cone top structure and second stage juveniles of the isolated populations were studied. detailed taxonomic studies revealed the existence of h. filipjevi. this is the first report of the species in the province. | 2008 | 18817233 |
| occurrence of plant parasitic nematodes (tylenchina) in sugar beet fields in fars province, iran. | on a survey of plant parasitic nematode fauna, belonging to the suborder tylenchina, about 110 soil and root samples were collected from different sugar beet field in fars province in iran. the samples were washed and the nematodes were extracted by centrifugal flotation technique according to the modified method by de grisse, 1969. they were fixed and transferred to glycerine, then permanent slides were mounted. morphological and morphometrical characters of collected species were carefully stu ... | 2004 | 15759441 |