Local temperature tolerance in the native range of an invasive species suggests pre- adaptation to New Zealand conditions. Smith, K., Agostini, S., Saito, Y., Abbott, C., & Andrew Fidler 2014. ![Local temperature tolerance in the native range of an invasive species suggests pre- adaptation to New Zealand conditions [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper abstract bibtex Mitochondrial (mt) genome evolution has been assumed to be selectively neutral even though mitochondria are the main producers of cellular energy. Recent studies indicate that metabolic requirements can exert selective pressures on the mitochondrial genome, leading to mitochondrial genotypes adapted to different environments. Phylogenetic analyses of the globally invasive marine tunicate Didemnum vexillum, using partial mtCOI sequences, revealed two distinct clades: one (clade B) apparently restricted to its native region (NW Pacific) and the other (clade A) now found in temperate coastal areas around the world. We hypothesized that clade B’s restricted distribution may reflect it being inherently less thermotolerant than clade A. Multiple mitochondrial genomes from both clades were sequenced and showed significant inter-clade differences in predicted sequences of enzyme sub-units involved in oxidative phosphorylation. Laboratory experiments, carried out in Japan, examined thermal stress tolerance and mitochondrial enzyme function of colonies from both clades A and B. Didemnum vexillum clade A appears to be adapted to lower water temperatures than B, consistent with its restriction to temperate waters. Integrating information on environmental conditions and physiological responses of invasive and non-invasive sibling clades/species is a promising avenue for linking genotypes and phenotypes involved in local adaptation.
@misc{smith_local_2014,
address = {Nelson, New Zealand},
title = {Local temperature tolerance in the native range of an invasive species suggests pre- adaptation to {New} {Zealand} conditions},
url = {http://nzmss.org/events/},
abstract = {Mitochondrial (mt) genome evolution has been assumed to be selectively neutral even though mitochondria are the main producers of cellular energy. Recent studies indicate that metabolic requirements can exert selective pressures on the mitochondrial genome, leading to mitochondrial genotypes adapted to different environments. Phylogenetic analyses of the globally invasive marine tunicate Didemnum vexillum, using partial mtCOI sequences, revealed two distinct clades: one (clade B) apparently restricted to its native region (NW Pacific) and the other (clade A) now found in temperate coastal areas around the world. We hypothesized that clade B’s restricted distribution may reflect it being inherently less thermotolerant than clade A.
Multiple mitochondrial genomes from both clades were sequenced and showed significant inter-clade differences in predicted sequences of enzyme sub-units involved in oxidative phosphorylation. Laboratory experiments, carried out in Japan, examined thermal stress tolerance and mitochondrial enzyme function of colonies from both clades A and B. Didemnum vexillum clade A appears to be adapted to lower water temperatures than B, consistent with its restriction to temperate waters. Integrating information on environmental conditions and physiological responses of invasive and non-invasive sibling clades/species is a promising avenue for linking genotypes and phenotypes involved in local adaptation.},
author = {Smith, Kirsty and Agostini, Sylvain and Saito, Yasunori and Abbott, Cathryn and {Andrew Fidler}},
year = {2014},
}
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Phylogenetic analyses of the globally invasive marine tunicate Didemnum vexillum, using partial mtCOI sequences, revealed two distinct clades: one (clade B) apparently restricted to its native region (NW Pacific) and the other (clade A) now found in temperate coastal areas around the world. We hypothesized that clade B’s restricted distribution may reflect it being inherently less thermotolerant than clade A. Multiple mitochondrial genomes from both clades were sequenced and showed significant inter-clade differences in predicted sequences of enzyme sub-units involved in oxidative phosphorylation. Laboratory experiments, carried out in Japan, examined thermal stress tolerance and mitochondrial enzyme function of colonies from both clades A and B. Didemnum vexillum clade A appears to be adapted to lower water temperatures than B, consistent with its restriction to temperate waters. Integrating information on environmental conditions and physiological responses of invasive and non-invasive sibling clades/species is a promising avenue for linking genotypes and phenotypes involved in local adaptation.","author":[{"propositions":[],"lastnames":["Smith"],"firstnames":["Kirsty"],"suffixes":[]},{"propositions":[],"lastnames":["Agostini"],"firstnames":["Sylvain"],"suffixes":[]},{"propositions":[],"lastnames":["Saito"],"firstnames":["Yasunori"],"suffixes":[]},{"propositions":[],"lastnames":["Abbott"],"firstnames":["Cathryn"],"suffixes":[]},{"firstnames":[],"propositions":[],"lastnames":["Andrew Fidler"],"suffixes":[]}],"year":"2014","bibtex":"@misc{smith_local_2014,\n\taddress = {Nelson, New Zealand},\n\ttitle = {Local temperature tolerance in the native range of an invasive species suggests pre- adaptation to {New} {Zealand} conditions},\n\turl = {http://nzmss.org/events/},\n\tabstract = {Mitochondrial (mt) genome evolution has been assumed to be selectively neutral even though mitochondria are the main producers of cellular energy. Recent studies indicate that metabolic requirements can exert selective pressures on the mitochondrial genome, leading to mitochondrial genotypes adapted to different environments. Phylogenetic analyses of the globally invasive marine tunicate Didemnum vexillum, using partial mtCOI sequences, revealed two distinct clades: one (clade B) apparently restricted to its native region (NW Pacific) and the other (clade A) now found in temperate coastal areas around the world. We hypothesized that clade B’s restricted distribution may reflect it being inherently less thermotolerant than clade A.\nMultiple mitochondrial genomes from both clades were sequenced and showed significant inter-clade differences in predicted sequences of enzyme sub-units involved in oxidative phosphorylation. Laboratory experiments, carried out in Japan, examined thermal stress tolerance and mitochondrial enzyme function of colonies from both clades A and B. 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