hybrid dysgenesis

hybrid dysgenesis

[′hī‚brid dis′jen·ə·səs]
(genetics)
A syndrome of abnormal traits that appears in the hybrids between certain strains of the fruit fly Drosophila melanogaster, and includes such traits as partial sterility and greatly elevated genetic mutations and chromosome rearrangements. Its cause is mobilization of a transposable element.
References in periodicals archive ?
The latter group of mice is particularly interesting due to hybrid dysgenesis resulting in undersize placentas and embryos.
2]s (or BCs) causes the breakup of the coadapted resistance mechanisms resulting in hybrid dysgenesis (Moulia 1999).
A main emphasis has been on determining what genetic features contribute to postmating reproductive isolation, and how they evolve and interact to generate hybrid dysgenesis (Hewitt 1988).
11]) suggest that the centromeric segments of these chromosomes from the two subspecies are not compatible, thus leading to hybrid dysgenesis.
Even though the European house mouse hybrid zone has been the focus of numerous studies during the last two decades, the contrasting results obtained by different approaches demonstrate that the degree of hybrid dysgenesis is not yet well defined.
Hybrid dysgenesis in Drosophila melanogaster: the biology of male and female sterility.
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