Search for dissertations about: "asymmetrical hybridization"

Found 2 swedish dissertations containing the words asymmetrical hybridization.

  1. 1. Speciation - What Can be Learned from a Flycatcher Hybrid Zone?

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Chris Wiley; Anna Qvarnström; Lars Gustafsson; Roger Butlin; [2006]
    Keywords : Biology; speciation; reinforcement; fitness; postzygotic isolation; asymmetrical hybridization; hybrid zone; species recognition; mate choice; sexual selection; direct benefits; parasite resistance; delayed plumage maturation; Ficedula hypoleuca; Ficedula albicollis; flycatcher; Biologi;

    Abstract : Studies of hybrid zones offer important insights into the process of speciation. Much of the knowledge to be gained is dependent on an accurate estimation of the strength of pre- and post-zygotic isolation between hybridizing taxa. My results demonstrate that hybridization can variously affect different components of fitness. READ MORE

  2. 2. Gene transfer by interspecific hybridization in bryophytes

    University dissertation from Media-Tryck, Lund University, Sweden

    Author : Weerachon Sawangproh; [2019-05-03]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; homozygote; heterozygote; admixture; single nucleotide polymorphism; STRUCTURE; PCoA; hybrid index; inbreeding; outbreeding; hybrid depression; heterosis; phylogeny; purging selection; genetic purging; genotype; phenotype; sympatry; allopatry;

    Abstract : The role of hybridization in evolution has been debated for more than a century regarding bryophytes (mosses, liverworts, and hornworts) as well as most other organisms. Bryophytes have haplodiplontic life cycles with a dominant haploid generation. READ MORE