Linked Life Data

7117033

Source:http://linkedlifedata.com/resource/pubmed/id/7117033

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1982-12-2
pubmed:abstractText
The distribution and frequency of chiasmata have been analyzed in male BALB/c mice. Bivalents were classified in terms of the number of interstitial chiasmata (CH) and terminal associations (TA) present as follows: 1CH, 2CH, 1TA, 2TA, 1CH X 1TA, 1CH X 2TA, 2CH X 1TA, 2CH X 2TA and 0. We provide evidence that the TA frequently dissociates during 1st meiotic prophase. Consequently six of the observed bivalents may be derived from three basic bivalent types (namely 2CH X 2TA, 1CH X 2TA and 2TA) by dissociation of the TA according to the following schemas: (1) 2CH X 2TA leads to 2CH X 1TA leads to 2CH, (2) 1CH X 2TA leads to 1CH X 1TA leads to 1CH, and (3) 2TA leads to 1TA leads to 0. We also provide evidence that interstitial chiasmata do not move, which implies that a TA can not be formed by chiasma terminalization. The chiasma frequency estimated by assuming that terminal associations do not result from terminalized chiasmata is 17.2+/-2.4 compared to a value of 25.4+/-2.2 calculated on the assumption of chiasma terminalization.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:issn
0009-5915
pubmed:author
pubmed:issnType
Print
pubmed:volume
85
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
439-52
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1982
pubmed:articleTitle
A re-examination of chiasma terminalization and chiasma frequency in male mice.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't