aegilops bicornis/cysts

BACKGROUND Aegilops variabilis No.1 is highly resistant to cereal cyst nematode (CCN). However, a lack of genomic information has restricted studies on CCN resistance genes in Ae. variabilis and has limited genetic applications in wheat breeding. RESULTS Using RNA-Seq technology, we generated a root

One of the reasons for the progressive yield decline observed in cereals production is the rapid build-up of populations of the cereal cyst nematode (CCN, Heterodera avenae). These nematodes secrete so-call effectors into their host plant to suppress the plant defense responses, alter plant

Cereal cyst nematode (CCN; Heterodera avenae Woll.) is a root pathogen of cereal crops that can cause severe yield losses in wheat (Triticum aestivum). Differential host-nematode interactions occur in wheat cultivars carrying different CCN resistance (Cre) genes. The objective of this study was to

The cereal cyst nematode (CCN) has a significant negative impact on production of wheat in China. The presence of pathotypes of both Heterodera avenae and H. filipjevi makes it necessary to identify genetic resources with a wide spectrum of resistance. Results of this study confirmed that the soft

Cereal cyst nematode (CCN, Heterodera avenae) is a most important pathogen of wheat and causes tremendous yield loss annually over the world. Since the lack of resistance materials among wheat cultivars, identification and characterization of the resistance-related genes from the relatives of wheat

An improved system for identifying DNA sequences linked to a targeted region was developed by fractionating DNA sequences prior to polymerase chain reaction (PCR) analysis. In an attempt to identify DNA markers linked to a strong CCN resistance gene, Ccn-D1, in Triticum tauschii, DNA samples from

Changes in ascorbate peroxidase (APX) enzyme activity in response to nematode (Heterodera avenae) attack were studied in roots of three hexaploid wheat lines carrying Cre2, Cre5, or Cre7 nematode resistance genes and the susceptible Triticum aestivum cv. Anza. A spectrophotometric analysis was

[This corrects the article DOI: 10.3389/fpls.2018.01297.].

Lines of wheat with the 6M(v) chromosome from Aegilops ventricosa display partial resistance to both pathotypes Hal2 and Ha41 of Heterodera avenae. With either pathotype, the effect of this alien chromosome on cyst production, size, and fecundity was expressed in resistance tests. Partial resistance

The allotetraploid species Aegilops variabilis Eig (2n = 28, UUSvSv) belongs to the tribe Triticeae and is closely related to wheat. One accession, Ae. variabilis No. 1, was found to be resistant to the cereal cyst nematode (CCN) and the root-knot nematode (RKN). As the genetic variability for

The effect of Cereal cyst nematode (Heterodera avenae) infection on the expression of putative root defence-related enzymes, peroxidase (PER), esterase (EST) and superoxide dismutase (SOD), was studied in roots of a wheat/Aegilops triuncialis introgression line TR-3531 carrying the Cre7 resistance

A resistance (R) gene-rich 2S chromosomal segment from Triticum ventricosum contains a cereal cyst nematode (CCN; Heterodera avenae) R gene locus CreX and a closely linked group of genes (Sr38, Yr17, and Lr37) that confer resistance to stem rust (Puccinia graminis f. sp. tritici), stripe rust (P.

The co-existence of cereal cyst nematode (CCN) species Heterodera avenae and H. filipjevi together with multiple pathotypes is a limiting factor for wheat production in China. Some of the known genes for resistance to CCN are not effective against both nematode species, which complicates breeding