Publikasjoner
NIBIOs ansatte publiserer flere hundre vitenskapelige artikler og forskningsrapporter hvert år. Her finner du referanser og lenker til publikasjoner og andre forsknings- og formidlingsaktiviteter. Samlingen oppdateres løpende med både nytt og historisk materiale. For mer informasjon om NIBIOs publikasjoner, besøk NIBIOs bibliotek.
2020
Sammendrag
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Forfattere
Isobel Phoebus John Boulanger Hans Geir Eiken Ida Marie Luna Fløystad Karen Graham Snorre Hagen Anja Sorensen Gordon StenhouseSammendrag
Det er ikke registrert sammendrag
Forfattere
Simo Maduna Kelvin L. Hull Edward D. Farrell Jessica J. Boomer Ana Verissimo Ilaria A. M. Marino Carlotta Mazzoldi Lorenzo Zane Sabine P. Wintner Mikhail V. Chesalin Charlene da Silva Chrysoula Gubili Stefano Mariani Aletta E. Bester-van der MerweSammendrag
Members of the smoothhound shark genus Mustelus display a widespread distribution pattern across ocean basins with a high degree of sub-regional endemism. The patterns and processes that resulted in smoothhound biodiversity and present-day distribution remain largely unknown. We infer the phylogenetic relationships of the genus Mustelus, based on sequence data (3474 bp) from three mitochondrial genes (CR, NADH-2 and 12S-16SrRNA) and a nuclear gene (KBTBD2) from seven species of Mustelus distributed across the eastern Atlantic- and Indo-Pacific oceans. Using the CR and KBTBD2 dataset, we infer the phylogeographic placement of Old World Mustelus, with particular reference to species from southern Africa. Using a near-complete phylogeny of the genus including Old World and New World species of Mustelus and publicly available sequences of the NADH-2 gene, we found supporting evidence indicating a major cladogenic event separating placental and aplacental species. Biogeographical analyses further revealed that the radiation of Mustelus in the southern African region was driven primarily by long-distance dispersal during the upper Miocene to lower Pleistocene. The placement of the placental blackspotted smoothhound Mustelus punctulatus at the base of the placental non-spotted clade suggests the secondary loss of black spots in the genus, and this was also supported by the ancestral state reconstruction. The results furthermore suggest that the Southern Hemisphere species of the genus arose from multiple separate dispersal events from the Northern Hemisphere which is in line with the earliest record of Mustelus in the Northern Hemisphere.
Forfattere
Abdelhameed Elameen Cornelya Klutsch Ida Marie Luna Fløystad Geir Kjølberg Knudsen Marco Tasin Snorre Hagen Hans Geir EikenSammendrag
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Sammendrag
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Forfattere
Ida Marie Luna Fløystad Paul Eric Aspholm Per John Aslaksen Anti Per Anders Eira Ann Maret Eira Beate Banken Bakke Inger Søvik Vilde Rushfeldt, Beddari Snorre Hagen Hans Geir EikenSammendrag
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Forfattere
Benedicte Lissner Beddari Sergey Ogurtsov Sari Magga Jaru Kangasniemi Ida Marie Luna Fløystad Inger Søvik Tom Sotkajærvi Rolf Randa Leif E. Ollila Vetle Lindgren Beate Banken Bakke Vilde Rushfeldt Beddari Natalia Polikarpova Tuomo Ollila Snorre Hagen Hans Geir EikenSammendrag
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Sammendrag
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Forfattere
Simo Maduna Adam Vivian-Smith Ólöf Dóra Bartels Jónsdóttir Albert Imsland Cornelya Klutsch Tommi Nyman Hans Geir Eiken Snorre HagenSammendrag
The lumpfish Cyclopterus lumpus is commercially exploited in numerous areas of its range in the North Atlantic Ocean, and is important in salmonid aquaculture as a biological agent for controlling sea lice. Despite the economic importance, few genetic resources for downstream applications, such as linkage mapping, parentage analysis, marker-assisted selection (MAS), quantitative trait loci (QTL) analysis, and assessing adaptive genetic diversity are currently available for the species. Here, we identify both genome- and transcriptome-derived microsatellites loci from C. lumpus to facilitate such applications. Across 2,346 genomic contigs, we detected a total of 3,067 microsatellite loci, of which 723 were the most suitable ones for primer design. From 116,555 transcriptomic unigenes, we identified a total of 231,556 microsatellite loci, which may indicate a high coverage of the available STRs. Out of these, primer pairs could only be designed for 6,203 loci. Dinucleotide repeats accounted for 89 percent and 52 percent of the genome- and transcriptome-derived microsatellites, respectively. The genetic composition of the dominant repeat motif types showed differences from other investigated fish species. In the genome-derived microsatellites AC/GT (67.8 percent), followed by AG/CT (15.1 percent) and AT/AT (5.6 percent) were the major motifs. Transcriptome-derived microsatellites showed also most dominantly the AC/GT repeat motif (33 percent), followed by A/T (26.6 percent) and AG/CT (11 percent). Functional annotation of microsatellite-containing transcriptomic sequences showed that the majority of the expressed sequence tags encode proteins involved in cellular and metabolic processes, binding activity and catalytic reactions. Importantly, STRs linked to genes involved in immune system process, growth, locomotion and reproduction were discovered in the present study. The extensive genomic marker information reported here will facilitate molecular ecology studies, conservation initiatives and will benefit many aspects of the breeding programmes of C. lumpus.
Sammendrag
Det er ikke registrert sammendrag