Sökning: "hybrid sterility"

Hittade 2 avhandlingar innehållade orden hybrid sterility.

1. 1. Hybrid sterility and genetic incompatibilities in Ficedula flycatchers

   Författare :Carolina Segami; Anna Qvarnström; Scott Edwards; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Speciation; genetic incompatibilities; hybrid sterility; hybrid inviability; single-cell RNA seq; GRC; Ficedula; flycatcher; intrinsic post-zygotic isolation; BDMI;

   Sammanfattning : Although the theory behind the mechanisms generating intrinsic post-zygotic isolation is well established, very few concrete examples of genetic incompatibilities have been described, especially in vertebrates. Consequently, our understanding of the evolutionary forces shaping the appearance of genetic incompatibilities between natural populations and the overall role of genetic incompatibilities in the speciation process is limited. LÄS MER

3. 2. Growth and Behaviour : Epigenetic and Genetic Factors Involved in Hybrid Dysgenesis

   Författare :Wei Shi; Reinald Fundele; Diethard Tautz; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Developmental biology; Interspecies hybridization; hybrid dysgenesis effect; speciation; genomic imprinting; epigenetics; Utvecklingsbiologi; Developmental biology; Utvecklingsbiologi;

   Sammanfattning : In mammals, the most frequently observed hybrid dysgenesis effects are growth disturbances and male sterility. Profound defects in placental development have been described and our work on hybrids in genus Mus has demonstrated putative hybrid dysgenesis effects that lead to defects in lipid homeostasis and maternal behavior. LÄS MER