Linked Life Data

7603998

Source:http://linkedlifedata.com/resource/pubmed/id/7603998

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
14
pubmed:dateCreated
1995-8-10
pubmed:abstractText
Controversy still exists over the adaptive nature of variation of enzyme loci. In conifers, random amplified polymorphic DNAs (RAPDs) represent a class of marker loci that is unlikely to fall within or be strongly linked to coding DNA. We have compared the genetic diversity in natural populations of black spruce [Picea mariana (Mill.) B.S.P.] using genotypic data at allozyme loci and RAPD loci as well as phenotypic data from inferred RAPD fingerprints. The genotypic data for both allozymes and RAPDs were obtained from at least six haploid megagametophytes for each of 75 sexually mature individuals distributed in five populations. Heterozygosities and population fixation indices were in complete agreement between allozyme loci and RAPD loci. In black spruce, it is more likely that the similar levels of variation detected at both enzyme and RAPD loci are due to such evolutionary forces as migration and the mating system, rather than to balancing selection and overdominance. Furthermore, we show that biased estimates of expected heterozygosity and among-population differentiation are obtained when using allele frequencies derived from dominant RAPD phenotypes.
pubmed:commentsCorrections
http://linkedlifedata.com/resource/pubmed/commentcorrection/7603998-1368888, http://linkedlifedata.com/resource/pubmed/commentcorrection/7603998-1385362, http://linkedlifedata.com/resource/pubmed/commentcorrection/7603998-1644282, http://linkedlifedata.com/resource/pubmed/commentcorrection/7603998-17248844, http://linkedlifedata.com/resource/pubmed/commentcorrection/7603998-1979162, http://linkedlifedata.com/resource/pubmed/commentcorrection/7603998-2259619, http://linkedlifedata.com/resource/pubmed/commentcorrection/7603998-6614868, http://linkedlifedata.com/resource/pubmed/commentcorrection/7603998-7982566, http://linkedlifedata.com/resource/pubmed/commentcorrection/7603998-8019690, http://linkedlifedata.com/resource/pubmed/commentcorrection/7603998-8121280, http://linkedlifedata.com/resource/pubmed/commentcorrection/7603998-8167849
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0027-8424
pubmed:author
pubmed:issnType
Print
pubmed:day
3
pubmed:volume
92
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
6369-73
pubmed:dateRevised
2010-9-13
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Complete congruence between gene diversity estimates derived from genotypic data at enzyme and random amplified polymorphic DNA loci in black spruce.
pubmed:affiliation
Centre de Recherche en Biologie Forestière, Faculté de Foresterie at de Géomatique, Université Laval, Sainte-Foy, Canada.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't