Linked Life Data

1001140

Source:http://linkedlifedata.com/resource/pubmed/id/1001140

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1977-2-16
pubmed:abstractText
Male hybrids of the cross D. azteca X D. athabasca are larger (hybrid giant males) than their parents, whereas hybrid females are of the same size as the parental species. Microspectrophotometric measurements have shown that the larval polytene salivary gland chromosomes of hybrid giant males undergo one more endoreplication than those of their sisters or parents. Replication patterns of the larval salivary gland chromosomes were compared after pulse labeling with 3H-thymidine and autoradiography. In females of either species as well as of hybrids X-chromosomes and autosomes are equally labeled, i.e. all chromosome arms replicate synchronously. In males, however. often fewer sites are labeled on the X-chromosome than on the autosomes. In addition, in a significant number of nuclei from D. athabasca males and also from hybrid giant males the converse can also be observed: i.e. more sites are labeled on the X-chromosome than on the autosomes. The modified labeling patterns are interpreted as an indication of a time-shift in the replication of hemizygous X-chromosomes in males, in relation to the autosomes.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0009-5915
pubmed:author
pubmed:issnType
Print
pubmed:day
10
pubmed:volume
57
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
235-60
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1976
pubmed:articleTitle
Anomalous development and differential DNA replication in the X-chromosome of a Drosophila hybrid.
pubmed:publicationType
Journal Article