PMID- 25248636
OWN - NLM
STAT- MEDLINE
DCOM- 20150406
LR  - 20211021
IS  - 1617-4623 (Electronic)
IS  - 1617-4623 (Linking)
VI  - 290
IP  - 1
DP  - 2015 Feb
TI  - Diversity within the genus Elymus (Poaceae: Triticeae) as investigated by the 
      analysis of the nr5S rDNA variation in species with St and H haplomes.
PG  - 329-42
LID - 10.1007/s00438-014-0907-4 [doi]
AB  - The genus Elymus ("Ryegrass") is a repository for a range of species with a 
      variety of haplome contents; hence the pejorative name "dustbin" genus. We have 
      analyzed 1,059 sequences from 128 accessions representing 24 species to 
      investigate the relationships among the StH haplomes-containing species described 
      by Yen and Yang (Genus Elymus Beijing 5:58-362, 2013). Sequences were assigned to 
      "unit classes" of orthologous sequences and subjected to a suite of analyses 
      including BLAST (Basic Local Alignment Search Tool) searches, phylogenetic 
      analysis and population genetic analysis to estimate species diversity. Our 
      results support the genome analyses in Yen and Yang (Genus Elymus Beijing 
      5:58-362, 2013), i.e., genomic constitution StStHH including variants restricted 
      to Elymus. Population genetic analysis of the 5S nrDNA sequence data revealed 
      that the within-species variance component is roughly +/-89 %; thus, we were unable 
      to identify molecular markers capable to separate the 24 species analyzed. 
      Separate phylogenetic analyses of the two unit classes and of all the data 
      exhibit a trend only of the species to cluster on the phylograms. Finally, the 
      analysis provides evidence for the multiple origins of American and Eurasian 
      species.
FAU - Baum, B R
AU  - Baum BR
AD  - Eastern Cereal and Oilseed Research Centre, Agriculture and Agri-Food Canada, 
      Ottawa, ON, K1A OC6, Canada, bernard.baum@agr.gc.ca.
FAU - Edwards, T
AU  - Edwards T
FAU - Johnson, D A
AU  - Johnson DA
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20140924
PL  - Germany
TA  - Mol Genet Genomics
JT  - Molecular genetics and genomics : MGG
JID - 101093320
RN  - 0 (DNA, Ribosomal)
SB  - IM
MH  - Base Sequence
MH  - Bayes Theorem
MH  - DNA, Ribosomal/*genetics
MH  - Elymus/*genetics
MH  - *Genetic Variation
MH  - Genetics, Population
MH  - Haplotypes/*genetics
MH  - Models, Genetic
MH  - Phylogeny
MH  - *Polyploidy
MH  - Principal Component Analysis
MH  - Species Specificity
EDAT- 2014/09/25 06:00
MHDA- 2015/04/07 06:00
CRDT- 2014/09/25 06:00
PHST- 2014/05/27 00:00 [received]
PHST- 2014/08/23 00:00 [accepted]
PHST- 2014/09/25 06:00 [entrez]
PHST- 2014/09/25 06:00 [pubmed]
PHST- 2015/04/07 06:00 [medline]
AID - 10.1007/s00438-014-0907-4 [doi]
PST - ppublish
SO  - Mol Genet Genomics. 2015 Feb;290(1):329-42. doi: 10.1007/s00438-014-0907-4. Epub 
      2014 Sep 24.