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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1992-8-27
pubmed:abstractText
Ovine cDNA probes for the alpha and beta A inhibin subunits and for follistatin were used to investigate the mRNA species for these hormones in ovaries obtained during the luteal phase of the oestrous cycle, from Booroola ewes which were homozygous carriers (BB) or non-carriers (++) of the FecB gene. BB ewes had significantly higher concentrations of peripheral FSH and LH immunoreactivity than ++ ewes, but the peripheral inhibin immunoreactivity and ovarian inhibin and progesterone secretion rates were not significantly different between genotypes. No gene-specific differences in the number or size of mRNA transcripts detected by Northern blotting were noted for any of these genes. A single alpha inhibin mRNA species at 1.5 kb was observed in the follicle RNA from ++ and BB ovaries. Low amounts of alpha inhibin hybridization were discerned occasionally in ++ and BB stroma and also in BB, but not in ++, corpora lutea. The beta A inhibin gene was expressed only in the follicles from both ++ and BB ovaries. At least three beta A inhibin transcripts were observed; one at 7.5 kb and at least two between 1.4 and 5.0 kb. The follistatin cDNA probe detected two major transcripts at 2.7 and 1.5 kb and a minor band at 0.5 kb in both follicle and corpora lutea RNA. Densitometry of the Northern blots revealed no significant gene-specific differences in the levels of alpha inhibin and follistatin gene mRNA transcripts.(ABSTRACT TRUNCATED AT 250 WORDS)
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0952-5041
pubmed:author
pubmed:issnType
Print
pubmed:volume
8
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
265-73
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Expression of the genes for alpha inhibin, beta A inhibin and follistatin in the ovaries of Booroola ewes which were homozygotes or non-carriers of the fecundity gene FecB.
pubmed:affiliation
Gene Expression Laboratory, Wallaceville Animal Research Centre, Upper Hutt, New Zealand.
pubmed:publicationType
Journal Article