Linked Life Data

15917497

Source:http://linkedlifedata.com/resource/pubmed/id/15917497

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
2005-8-8
pubmed:abstractText
The chloroplast DNA (cpDNA) inversion in the Asteraceae has been cited as a classic example of using genomic rearrangements for defining major lineages of plants. We further characterize cpDNA inversions in the Asteraceae using extensive sequence comparisons among 56 species, including representatives of all major clades of the family and related families. We determine the boundaries of the 22-kb (now known as 22.8 kb) inversion that defines a major split within the Asteraceae, and in the process, we characterize the second and a new, smaller 3.3-kb inversion that occurs at one end of the larger inversion. One end point of the smaller inversion is upstream of the trnE-UUC gene, and the other end point is located between the trnC-GCA and rpoB genes. Although a diverse sampling of Asteraceae experienced substantial length variation and base substitution during the long evolutionary history subsequent to the inversion events, the precise locations of the inversion end points are identified using comparative sequence alignments in the inversion regions. The phylogenetic distribution of two inversions is identical among the members of Asteraceae, suggesting that the inversion events likely occurred simultaneously or within a short time period shortly after the origin of the family. Estimates of divergence times based on ndhF and rbcL sequences suggest that two inversions originated during the late Eocene (38-42 MYA). The divergence time estimates also suggest that the Asteraceae originated in the mid Eocene (42-47 MYA).
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0737-4038
pubmed:author
pubmed:issnType
Print
pubmed:volume
22
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1783-92
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
Two chloroplast DNA inversions originated simultaneously during the early evolution of the sunflower family (Asteraceae).
pubmed:affiliation
School of Life Sciences and Biotechnology, Korea University, Seoul, Korea. kimkj@korea.ac.kr
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S., Historical Article, Research Support, Non-U.S. Gov't