Phenotypic and molecular characterization of Hessian fly resistance in diploid wheat, Aegilops tauschii
نویسندگان
چکیده
منابع مشابه
Genetic Mapping of an Aegilops tauschii–derived Hessian Fly Resistance Gene in Common Wheat
Hessian fl y [Mayetiola destructor (Say)] is a major threat to wheat (Triticum aestivum L.) production in the eastern United States. Cultivar releases containing major Hessian fl y resistance genes have proven effective in minimizing losses caused by this pest. Nevertheless, the ephemeral nature of major gene resistance necessitates the identifi cation of novel sources of resistance. Hessian fl...
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As the post-transcriptional regulators of gene expression, microRNAs or miRNAs comprise an integral part of understanding how genomes function. Although miRNAs have been a major focus of recent efforts, miRNA research is still in its infancy in most plant species. Aegilops tauschii, the D genome progenitor of bread wheat, is a wild diploid grass exhibiting remarkable population diversity. Due t...
متن کاملMolecular mapping of segregation distortion loci in Aegilops tauschii.
Distorted segregation ratios of genetic markers are often observed in progeny of inter- and intraspecific hybrids and may result from competition among gametes or from abortion of the gamete or zygote. In this study, 194 markers mapped in an Aegilops tauschii F2 population were surveyed for distorted segregation ratios. Region(s) with skewed segregation ratios were detected on chromosomes 1D, 3...
متن کاملCharacterization of genetic variation among accessions of Aegilops tauschii
* Author for correspondence: Agronomy and Plant Breeding Department, Agricultural College, University of Tehran, Karaj, Iran. Tel: 02612246074, Fax: 02612227607, Email: [email protected]. Abstract. The application of AFLPs, and SSRs to examine genetic relationships in the 54 accessions of Aegilops tauschii from 5 countries was investigated. A total of 256 (234 polymorphic) and 224 (219 polymorp...
متن کاملAccelerated Senescence and Enhanced Disease Resistance in Hybrid Chlorosis Lines Derived from Interspecific Crosses between Tetraploid Wheat and Aegilops tauschii
Hybrid chlorosis, a type of hybrid incompatibility, has frequently been reported in inter- and intraspecific crosses of allopolyploid wheat. In a previous study, we reported some types of growth abnormalities such as hybrid necrosis and observed hybrid chlorosis with mild or severe abnormalities in wheat triploids obtained in crosses between tetraploid wheat cultivar Langdon and four Ae. tausch...
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ژورنال
عنوان ژورنال: BMC Plant Biology
سال: 2019
ISSN: 1471-2229
DOI: 10.1186/s12870-019-2058-6