Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Arnar Palsson"'
Autor:
Johannes Gudbrandsson, Ehsan P. Ahi, Sigridur R. Franzdottir, Kalina H. Kapralova, Bjarni K. Kristjansson, S. Sophie Steinhaeuser, Valerie H. Maier, Isak M. Johannesson, Sigurdur S. Snorrason, Zophonias O. Jonsson, Arnar Palsson
Publikováno v:
F1000Research, Vol 4 (2016)
Species and populations with parallel evolution of specific traits can help illuminate how predictable adaptations and divergence are at the molecular and developmental level. Following the last glacial period, dwarfism and specialized bottom feeding
Externí odkaz:
https://doaj.org/article/9f7174def5444403839f587a759ced33
Autor:
Johannes Gudbrandsson, Ehsan P. Ahi, Sigridur R. Franzdottir, Kalina H. Kapralova, Bjarni K. Kristjansson, S. Sophie Steinhaeuser, Valerie H. Maier, Isak M. Johannesson, Sigurdur S. Snorrason, Zophonias O. Jonsson, Arnar Palsson
Publikováno v:
F1000Research, Vol 4 (2016)
Species and populations with parallel evolution of specific traits can help illuminate how predictable adaptations and divergence are at the molecular and developmental level. Following the last glacial period, dwarfism and specialized bottom feeding
Externí odkaz:
https://doaj.org/article/d62cb9465a7e45098ed457064bdaba31
Publikováno v:
PLoS ONE, Vol 9, Iss 5, p e91924 (2014)
Changes in regulatory DNA contribute to phenotypic differences within and between taxa. Comparative studies show that many transcription factor binding sites (TFBS) are conserved between species whereas functional studies reveal that some mutations s
Externí odkaz:
https://doaj.org/article/51a075493ae9411b80b62b5180ab2461
Autor:
Kalina H Kapralova, Johannes Gudbrandsson, Sigrun Reynisdottir, Cristina B Santos, Vanessa C Baltanás, Valerie H Maier, Sigurdur S Snorrason, Arnar Palsson
Publikováno v:
PLoS ONE, Vol 8, Iss 7, p e69402 (2013)
Northern freshwater fish may be suitable for the genetic dissection of ecological traits because they invaded new habitats after the last ice age (∼10.000 years ago). Arctic charr (Salvelinus alpinus) colonizing streams and lakes in Iceland gave ri
Externí odkaz:
https://doaj.org/article/48af86d399f54720be4962bf2b538a88
Autor:
Michael Z Ludwig, Arnar Palsson, Elena Alekseeva, Casey M Bergman, Janaki Nathan, Martin Kreitman
Publikováno v:
PLoS Biology, Vol 3, Iss 4, p e93 (2005)
Lack of knowledge about how regulatory regions evolve in relation to their structure-function may limit the utility of comparative sequence analysis in deciphering cis-regulatory sequences. To address this we applied reverse genetics to carry out a f
Externí odkaz:
https://doaj.org/article/ffb9c480d2514707a39ae49b348e934c
Autor:
Þóra Margrét Bergsveinsdóttir, Jóhannes Guðbrandsson, Zophonías O. Jónsson, Sigrídur Rut Franzdóttir, Sigurður S. Snorrason, Kalina H. Kapralova, Völundur Hafstað, Arnar Palsson
Publikováno v:
Ecology and Evolution, Vol 9, Iss 19, Pp 10964-10983 (2019)
Ecology and Evolution
Ecology and Evolution
Publisher's version (útgefin grein)
The availability of diverse ecological niches can promote adaptation of trophic specializations and related traits, as has been repeatedly observed in evolutionary radiations of freshwater fish. The role of g
The availability of diverse ecological niches can promote adaptation of trophic specializations and related traits, as has been repeatedly observed in evolutionary radiations of freshwater fish. The role of g
Publikováno v:
Comparative Immunology, Microbiology and Infectious Diseases. 55:6-12
Maedi-visna virus (MVV), a lentivirus of sheep, shares with other lentiviruses the ability to establish a lifelong infection. In this study five sheep were infected intravenously with MVV and housed together with a number of uninfected sheep for natu
Autor:
Guðbjörg Ósk Jónsdóttir, Laura-Marie von Elm, Finnur Ingimarsson, Samuel Tersigni, Sigurður Sveinn Snorrason, Arnar Pálsson, Sarah Elizabeth Steele
Publikováno v:
PLoS ONE, Vol 19, Iss 5, p e0300359 (2024)
The diversity of functional feeding anatomy is particularly impressive in fishes and correlates with various interspecific ecological specializations. Intraspecific polymorphism can manifest in divergent feeding morphology and ecology, often along a
Externí odkaz:
https://doaj.org/article/353b73ba1bb1417c8c77d699a669e2ac
Publikováno v:
Fungal Biology. 120:1194-1208
Organisms have evolved different cellular mechanisms to deal with environmental stress, primarily through complex molecular mechanisms including protein refolding and DNA repair. As mutualistic symbioses, lichens offer the possibility of analyzing mo
Autor:
Ehsan Pashay Ahi, Kalina H. Kapralova, Jóhannes Guðbrandsson, Sigríður Rut Franzdóttir, Valerie H. Maier, Sigurður S. Snorrason, Arnar Palsson, Bjarni K. Kristjánsson, Zophonías O. Jónsson
Publikováno v:
PeerJ
PeerJ, Vol 6, p e4345 (2018)
PeerJ, Vol 6, p e4345 (2018)
Phenotypic differences between closely related taxa or populations can arise through genetic variation or be environmentally induced, leading to altered transcription of genes during development. Comparative developmental studies of closely related s