Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1986-7-28
pubmed:abstractText
Blot-hybridization of sea urchin (Tripneustes gratilla) genomic DNA with a cloned rDNA probe revealed individual variation in the length of the rDNA repeat unit and also in the non-transcribed spacer sequences. The number of distinct rDNA repeat subclasses distinguishable within any one sea urchin was limited and usually 2 to 3. However, examination of a number of sea urchins indicated a large number of distinct rDNA repeat types in the population as a whole; all of the rDNA repeat types in nine individuals were different. The presence of limited heterogeneity in the rDNA repeats of single individuals, with may different repeat types in the population as a whole, suggests that rDNA variants can be rapidly and selectively propagated within a chromosomal lineage.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0006-291X
pubmed:author
pubmed:issnType
Print
pubmed:day
13
pubmed:volume
137
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
834-40
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1986
pubmed:articleTitle
Length and sequence polymorphisms in the ribosomal gene spacer of the Hawaiian sea urchin, T. gratilla.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.