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Radiation of extant marsupials after the K/T boundary: Evidence from complete mitochondrial genomes

Nilsson, Maria LU ; Gullberg, Anette LU ; Spotorno, AE; Arnason, Ulfur LU and Janke, Axel LU (2003) In Journal of Molecular Evolution 57(Suppl. 1). p.3-12
Abstract
The complete mitochondrial (mt) genomes

of five marsupial species have been sequenced.

The species represent all three South American orders

(Didelphimorphia, Paucituberculata, and Microbiotheria).

Phylogenetic analysis of this data set indicates

that Didelphimorphia is a basal marsupial lineage

followed by Paucituberculata. The South American

microbiotherid Dromiciops gliroides (monito del

monte) groups with Australian marsupials, suggesting

a marsupial colonization of Australia on two

occasions or, alternatively, a migration of an Australian

marsupial lineage to South America. Molecular

estimates suggest that the deepest... (More)
The complete mitochondrial (mt) genomes

of five marsupial species have been sequenced.

The species represent all three South American orders

(Didelphimorphia, Paucituberculata, and Microbiotheria).

Phylogenetic analysis of this data set indicates

that Didelphimorphia is a basal marsupial lineage

followed by Paucituberculata. The South American

microbiotherid Dromiciops gliroides (monito del

monte) groups with Australian marsupials, suggesting

a marsupial colonization of Australia on two

occasions or, alternatively, a migration of an Australian

marsupial lineage to South America. Molecular

estimates suggest that the deepest marsupial

divergences took place 64–62 million years before

present (MYBP), implying that the radiation of recent

marsupials took place after the K/T (Cretaceous/

Tertiary) boundary. The South American marsupial

lineages are all characterized by a putatively nonfunctional

tRNA for lysine, a potential RNA editing

of the tRNA for asparagine, and a rearrangement of

tRNA genes at the origin of light strand replication. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Thylamys, phylogeny, marsupialia, mitogenomics, Dromiciops, Rhyncholestes, Caenolestes, Monodelphis
in
Journal of Molecular Evolution
volume
57
issue
Suppl. 1
pages
3 - 12
publisher
Springer
external identifiers
  • wos:000186396000002
  • scopus:0347380991
ISSN
0022-2844
DOI
language
English
LU publication?
yes
id
b66e1eb7-56f9-4b60-9bca-7d1e41b8aae9 (old id 295993)
date added to LUP
2007-09-19 12:10:31
date last changed
2018-06-10 03:39:37
@article{b66e1eb7-56f9-4b60-9bca-7d1e41b8aae9,
  abstract     = {The complete mitochondrial (mt) genomes<br/><br>
of five marsupial species have been sequenced.<br/><br>
The species represent all three South American orders<br/><br>
(Didelphimorphia, Paucituberculata, and Microbiotheria).<br/><br>
Phylogenetic analysis of this data set indicates<br/><br>
that Didelphimorphia is a basal marsupial lineage<br/><br>
followed by Paucituberculata. The South American<br/><br>
microbiotherid Dromiciops gliroides (monito del<br/><br>
monte) groups with Australian marsupials, suggesting<br/><br>
a marsupial colonization of Australia on two<br/><br>
occasions or, alternatively, a migration of an Australian<br/><br>
marsupial lineage to South America. Molecular<br/><br>
estimates suggest that the deepest marsupial<br/><br>
divergences took place 64–62 million years before<br/><br>
present (MYBP), implying that the radiation of recent<br/><br>
marsupials took place after the K/T (Cretaceous/<br/><br>
Tertiary) boundary. The South American marsupial<br/><br>
lineages are all characterized by a putatively nonfunctional<br/><br>
tRNA for lysine, a potential RNA editing<br/><br>
of the tRNA for asparagine, and a rearrangement of<br/><br>
tRNA genes at the origin of light strand replication.},
  author       = {Nilsson, Maria and Gullberg, Anette and Spotorno, AE and Arnason, Ulfur and Janke, Axel},
  issn         = {0022-2844},
  keyword      = {Thylamys,phylogeny,marsupialia,mitogenomics,Dromiciops,Rhyncholestes,Caenolestes,Monodelphis},
  language     = {eng},
  number       = {Suppl. 1},
  pages        = {3--12},
  publisher    = {Springer},
  series       = {Journal of Molecular Evolution},
  title        = {Radiation of extant marsupials after the K/T boundary: Evidence from complete mitochondrial genomes},
  url          = {http://dx.doi.org/},
  volume       = {57},
  year         = {2003},
}