Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7-8
pubmed:dateCreated
1981-12-21
pubmed:abstractText
Syrian (Mesocricetus auratus) and Chinese (Cricetulus griseus) hamsters were phenotyped by electrophoresis for salivary and pancreatic amylases. Syrian hamsters possess two salivary amylase electromorphs, the more anodal (fast) being invariant in 250 outbred and 17 representatives of 5 highly inbred lines. The slow electromorph had activity equal to that of the fast amylase (heavy), or had distinctly less activity (light), or was absent (null). The slow electromorph is inherited as an autosomal semidominant trait with two alleles. Amys and Amyo. Amys homozygotes produce heavy, Amyo homozygotes null, and heterozygotes light phenotypes, respectively. Five inbred strains of hamsters were homozygous Amyo. Pancreatic amylase was monomorphic. Eight outbred Chinese hamsters showed no salivary amylase activity with electrophoresis, but slight activity with long incubation on starch-agar plates. However, pancreatic amylase activity in the Chinese hamster exceeded that in Syrian hamsters. Site duplication and apparent "null" alleles for amylase genes occur in muroid rodents. The evolutionary implications are discussed.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0006-2928
pubmed:author
pubmed:issnType
Print
pubmed:volume
19
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
623-33
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1981
pubmed:articleTitle
Comparative genetics of hamster amylases.
pubmed:publicationType
Journal Article, Comparative Study