Complex study and physical mapping of genes in hexaploid wheat, responsible for embryo development of wheat-rye hybrids via interaction with rye genome

Description: Das Projekt "Complex study and physical mapping of genes in hexaploid wheat, responsible for embryo development of wheat-rye hybrids via interaction with rye genome" wird vom Umweltbundesamt gefördert und von Leibniz-Institut für Pflanzengenetik und Kulturpflanzenforschung durchgeführt. One of the reproductive barriers that can isolate species is embryo lethality which is due to disfunctional interaction between parental genomes. Embryo lethality obtained in crosses of hexaploid wheat with diploid rye is the result of complement interaction between the two genes/alleles Eml-A1 and Eml-R1b from wheat and rye, respectively. In addition, the 1D wheat chromosome carries unknown genetic factor(s) which have strong effect on the viability of wheat-rye hybrid seeds. The goals of the project are: (I) physical mapping and studying dosage effect of Eml-A1 gene (II) development of a method for overcoming embryo lethality in wheat-rye hybrids and (III) physical mapping and cytological study of chromosome 1D wheat gene(s) essential for seed development in wheat rye hybrids. The development of a method of regeneration in callus culture from abnormal immature embryos with lethal genotype by indirect organogenesis will enable us to study the interaction and expression of incompatible wheat Eml-A1 and rye Eml-R1b alleles causing embryo lethality. New information about genes, involved in apical meristem development in early stages of embryogenesis of wheat-rye hybrids (and of other plants) will be gained.

SupportProgram

Origin: /Bund/UBA/UFORDAT

Tags: Gen ? Roggen ? Weizen ? Genom ? Genotyp ? Pflanzengenetik ? Biologische Wirkung ? Saatgut ? Pflanzensamen ? Embryo ? Embryonalentwicklung ? Pflanzenzüchtung ? Mortalität ? Studie ? Regeneration ? Chromosomenuntersuchung ? Genlokalisation ? Hybridisierung [Nukleinsäure] ? Kreuzung [biologisch] ? Pflanzenerbgut ? Wachstum [biologisch] ? Wechselwirkung ?

Region: Sachsen-Anhalt

License: cc-by-nc-nd/4.0

Language: Englisch/English

Organisations

• Leibniz-Institut für Pflanzengenetik und Kulturpflanzenforschung (Betreiber*in)
• Umweltbundesamt (Bereitsteller*in)

Time ranges: 2013-01-01 - 2025-03-31

Status

Aktiv

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