Informace o kvalifikační práci Hidden diversity and evolutionary trends in malacosporean parasites (Cnidaria: Myxozoa) identified using molecular phylogenetics
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Hlavní téma
Hidden diversity and evolutionary trends in malacosporean parasites (Cnidaria: Myxozoa) identified using molecular phylogenetics
Hlavní téma v angličtině
Hidden diversity and evolutionary trends in malacosporean parasites (Cnidaria: Myxozoa) identified using molecular phylogenetics
Název dle studenta
Hidden diversity and evolutionary trends in malacosporean parasites (Cnidaria: Myxozoa) identified using molecular phylogenetics
Název dle studenta v angličtině
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Souběžný název
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Podnázev
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Anotace
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Anotace v angličtině
Malacosporeans represent only a minor part of the huge myxozoan diversity, accounting for more than 2000 species. In contrast to the remainder of the Myxozoa, malacosporeans cycle between vertebrate (fish) and invertebrate (bryozoans) hosts and are restricted to freshwater habitats. The present study applies light microscopy and molecular methods to scrutinize the morphology, prevalence, diversity, distribution as well as host and habitat preference of malacosporeans in fish hosts. Comprehensive phylogenetic analyses based on newly obtained malacosporean SSU rDNA sequences and those available in GenBank reveal important evolutionary trends in this group. The significant increase in malacosporean species richness unveiled in the present study points to a hidden biodiversity. Reasons for this cryptic species diversity, the potential existence of malacosporean life cycles in marine environment as well as the evolution of worm- and sac-like morphology in bryozoan host are discussed.
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Klíčová slova v angličtině
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Rozsah průvodní práce
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Jazyk
AN
Anotace
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Anotace v angličtině
Malacosporeans represent only a minor part of the huge myxozoan diversity, accounting for more than 2000 species. In contrast to the remainder of the Myxozoa, malacosporeans cycle between vertebrate (fish) and invertebrate (bryozoans) hosts and are restricted to freshwater habitats. The present study applies light microscopy and molecular methods to scrutinize the morphology, prevalence, diversity, distribution as well as host and habitat preference of malacosporeans in fish hosts. Comprehensive phylogenetic analyses based on newly obtained malacosporean SSU rDNA sequences and those available in GenBank reveal important evolutionary trends in this group. The significant increase in malacosporean species richness unveiled in the present study points to a hidden biodiversity. Reasons for this cryptic species diversity, the potential existence of malacosporean life cycles in marine environment as well as the evolution of worm- and sac-like morphology in bryozoan host are discussed.