Gremiensitzungen
Dissertationskolloquium
Veranstalter: Agnes Weiner
Ort: GEO-Gebäude, Raum 1550 (Hörsaal)Beginn: 11.07.2014 13:15 Uhr
Kategorie: Gremiensitzungen
The studies for my dissertation focused on establishing a connection between information from the fossil record and the genetic background in extant species in order to find out to what degree morphologically defined species reflect real biological diversity. I used molecular genetic techniques in combination with morphometric analyses to examine the extent of cryptic genetic diversity in selected morphospecies and its relation to morphological traits. This connection helped to resolve the taxonomy and validity of certain questionable morphospecies. Furthermore, I analyzed the biogeographic distribution patterns of extant species in order to differentiate between species with local adaptations and endemism versus species with global dispersal and gene flow.
Publications:
Weiner A, Weinkauf M, Kurasawa A, Darling K, Kucera M, Grimm G (2014) Phylogeography of the tropical planktonic foraminifera lineage Globigerinella reveals isolation inconsistent with passive dispersal by ocean currents. PLoSONE, 9(3): e92148.
André A, Weiner A, Quillévéré F, Aurahs R, Morard R, Douady CJ, de Garidel-Thoron T, Escarguel G, de Vargas C, Kucera M (2013) The cryptic and the apparent reversed: lack of genetic differentiation within the morphologically diverse plexus of the planktonic foraminifer Globigerinoides sacculifer. Paleobiology, 39(1): 21-39.
Weiner A, Aurahs R, Kurasawa A, Kitazato H, Kucera M (2012) Vertical niche partitioning between cryptic sibling species of a cosmopolitan marine planktonic protist. Molecular Ecology, 21(16): 4063-4073.
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