The application of baleen whale genomes in conservation and evolutionary research
Baleen whales (Mysticeti) are a clade of highly adapted carnivorous marine mammals that can reach extremely large body sizes and feature characteristic keratinaceous baleen plates used for obligate filter feeding. From a conservation perspective, nearly all baleen whale species were hunted extensive...
Main Author: | |
---|---|
Format: | Doctoral or Postdoctoral Thesis |
Language: | English |
Published: |
2023
|
Subjects: | |
Online Access: | http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/75018 https://nbn-resolving.org/urn:nbn:de:hebis:30:3-750186 https://doi.org/10.21248/gups.75018 http://publikationen.ub.uni-frankfurt.de/files/75018/MWolf_Dissertation_BaleenWhaleGenomics.pdf |
id |
ftunivfrankfurt:oai:publikationen.ub.uni-frankfurt.de:75018 |
---|---|
record_format |
openpolar |
spelling |
ftunivfrankfurt:oai:publikationen.ub.uni-frankfurt.de:75018 2023-10-01T03:54:52+02:00 The application of baleen whale genomes in conservation and evolutionary research Wolf, Magnus 2023-08-08 application/pdf http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/75018 https://nbn-resolving.org/urn:nbn:de:hebis:30:3-750186 https://doi.org/10.21248/gups.75018 http://publikationen.ub.uni-frankfurt.de/files/75018/MWolf_Dissertation_BaleenWhaleGenomics.pdf eng eng http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/75018 urn:nbn:de:hebis:30:3-750186 https://nbn-resolving.org/urn:nbn:de:hebis:30:3-750186 https://doi.org/10.21248/gups.75018 http://publikationen.ub.uni-frankfurt.de/files/75018/MWolf_Dissertation_BaleenWhaleGenomics.pdf http://publikationen.ub.uni-frankfurt.de/home/index/help#policies info:eu-repo/semantics/openAccess ddc:570 doctoralthesis doc-type:doctoralThesis 2023 ftunivfrankfurt https://doi.org/10.21248/gups.75018 2023-09-03T22:41:47Z Baleen whales (Mysticeti) are a clade of highly adapted carnivorous marine mammals that can reach extremely large body sizes and feature characteristic keratinaceous baleen plates used for obligate filter feeding. From a conservation perspective, nearly all baleen whale species were hunted extensively over a roughly 100 years lasting time period that depleted many of the respective whale stocks with so far unknown consequences for e.g. their molecular viability. From an evolutionary perspective, the lack of fossil records together with conflicting molecular patterns resulted in a still unclear and debated phylogeny of modern baleen whales, particularly in rorquals (Balaenopteridae). In this dissertation, I will demonstrate the application of baleen whale genomes to tackle these open questions by using modern approaches of conservation and evolutionary genomics. Conservation genomic aspects of baleen whales were addressed in two projects, both using whole genome data of either an Icelandic fin whale (Balaenoptera physalus) population or multiple blue whale (Balaenoptera musculus) populations to evaluate the impact of the industrial whaling era on their molecular viability. The results suggest a substantial drop in effective population size of both species but also a lack of manifestation in genotypes of the fin whale population when compared to the blue whale populations. Especially the rare and short runs of homozygosity (ROH), usually indicative for inbreeding, suggest frequent outcrossing in fin whales while all analyzed blue whale populations featured long and frequent ROH. In addition to these analyses, genome data of blue whale populations was further used to evaluate if northern hemisphere blue whales diverged into different subspecies. Population genetic and gene flow analyses showed clearly separated and well isolated populations in accordance with their assumed geographical distance. In contrast, the genome-wide divergence between all blue whale populations was low compared to other cetacean populations ... Doctoral or Postdoctoral Thesis Balaenoptera musculus Balaenoptera physalus baleen whale baleen whales Blue whale Fin whale Publication Server of Goethe University Frankfurt am Main |
institution |
Open Polar |
collection |
Publication Server of Goethe University Frankfurt am Main |
op_collection_id |
ftunivfrankfurt |
language |
English |
topic |
ddc:570 |
spellingShingle |
ddc:570 Wolf, Magnus The application of baleen whale genomes in conservation and evolutionary research |
topic_facet |
ddc:570 |
description |
Baleen whales (Mysticeti) are a clade of highly adapted carnivorous marine mammals that can reach extremely large body sizes and feature characteristic keratinaceous baleen plates used for obligate filter feeding. From a conservation perspective, nearly all baleen whale species were hunted extensively over a roughly 100 years lasting time period that depleted many of the respective whale stocks with so far unknown consequences for e.g. their molecular viability. From an evolutionary perspective, the lack of fossil records together with conflicting molecular patterns resulted in a still unclear and debated phylogeny of modern baleen whales, particularly in rorquals (Balaenopteridae). In this dissertation, I will demonstrate the application of baleen whale genomes to tackle these open questions by using modern approaches of conservation and evolutionary genomics. Conservation genomic aspects of baleen whales were addressed in two projects, both using whole genome data of either an Icelandic fin whale (Balaenoptera physalus) population or multiple blue whale (Balaenoptera musculus) populations to evaluate the impact of the industrial whaling era on their molecular viability. The results suggest a substantial drop in effective population size of both species but also a lack of manifestation in genotypes of the fin whale population when compared to the blue whale populations. Especially the rare and short runs of homozygosity (ROH), usually indicative for inbreeding, suggest frequent outcrossing in fin whales while all analyzed blue whale populations featured long and frequent ROH. In addition to these analyses, genome data of blue whale populations was further used to evaluate if northern hemisphere blue whales diverged into different subspecies. Population genetic and gene flow analyses showed clearly separated and well isolated populations in accordance with their assumed geographical distance. In contrast, the genome-wide divergence between all blue whale populations was low compared to other cetacean populations ... |
format |
Doctoral or Postdoctoral Thesis |
author |
Wolf, Magnus |
author_facet |
Wolf, Magnus |
author_sort |
Wolf, Magnus |
title |
The application of baleen whale genomes in conservation and evolutionary research |
title_short |
The application of baleen whale genomes in conservation and evolutionary research |
title_full |
The application of baleen whale genomes in conservation and evolutionary research |
title_fullStr |
The application of baleen whale genomes in conservation and evolutionary research |
title_full_unstemmed |
The application of baleen whale genomes in conservation and evolutionary research |
title_sort |
application of baleen whale genomes in conservation and evolutionary research |
publishDate |
2023 |
url |
http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/75018 https://nbn-resolving.org/urn:nbn:de:hebis:30:3-750186 https://doi.org/10.21248/gups.75018 http://publikationen.ub.uni-frankfurt.de/files/75018/MWolf_Dissertation_BaleenWhaleGenomics.pdf |
genre |
Balaenoptera musculus Balaenoptera physalus baleen whale baleen whales Blue whale Fin whale |
genre_facet |
Balaenoptera musculus Balaenoptera physalus baleen whale baleen whales Blue whale Fin whale |
op_relation |
http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/75018 urn:nbn:de:hebis:30:3-750186 https://nbn-resolving.org/urn:nbn:de:hebis:30:3-750186 https://doi.org/10.21248/gups.75018 http://publikationen.ub.uni-frankfurt.de/files/75018/MWolf_Dissertation_BaleenWhaleGenomics.pdf |
op_rights |
http://publikationen.ub.uni-frankfurt.de/home/index/help#policies info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.21248/gups.75018 |
_version_ |
1778522890774249472 |