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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2009-2-17
pubmed:abstractText
An extensive study on spontaneous and 5-Fluorodeoxyuridine induced fragile sites identified Xq31 in cattle (Bos taurus) and (Xq24, Xq26) in sheep (Ovis aries) in addition to several autosomal fragile sites (under publication). A ZOO-FISH study using three cloned human fragile-X probes with CCG/CGG(n) trinucleotide repeat sequence was carried out to determine homology between human and bovine fragile-X. The hybridisation results showed only a weak signal on a human chromosome that was not an X with all three fragile site probes. No signals were detected in sheep chromosomes. The signal of all three human fragile-X probes on cattle chromosomes was however, medium-prominent sub-centromeric signal on two homologues. BrdU administration in 12 h before harvesting identified these homologues to be chromosome number 5. In addition retrospective slides of cattle and sheep chromosomes used for fragile site studies showed no signals whatsoever. It was therefore concluded that no homology existed between human and bovine fragile-X.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0301-4851
pubmed:author
pubmed:issnType
Print
pubmed:volume
36
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
619-22
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Fluorescent in-situ hybridization of cattle and sheep chromosomes with cloned human fragile-X DNA.
pubmed:affiliation
Molecular Cytogenetics and Genomics Laboratory, University of Veterinary and Animal Sciences, Lahore, Pakistan. drahmad65@hotmail.com
pubmed:publicationType
Journal Article