Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
1999-12-22
pubmed:abstractText
Paragonimus westermani is a medically important foodborne trematode occurring throughout southeast Asia. We have used molecular techniques to test the hypothesis that the parthenogenetic triploid form of P. westermani has arisen only once. Sources of data for comparison were: (a) restriction fragment length polymorphisms (RFLPs) of ribosomal internal transcribed spacers (ITS); and (b) 'fingerprint' patterns observed when genomic digests were probed with simple sequence repeats (ATT)10 and (ATGT)7. In all cases there were distinct differences among triploid isolates from southwest Japan, northeast China and Korea. These findings are considered in the context of previous cytogenetic, allozyme, mitochondrial-RFLP and partial cytochrome c-oxidase subunit I (COI) sequence studies and indicate that triploid lineages may have arisen independently on more than one occasion. We favour this view. An alternative explanation is that the triploids did have a single origin, but that different clonal lineages have undergone subsequent mutations.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0020-7519
pubmed:author
pubmed:issnType
Print
pubmed:volume
29
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1477-82
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Genetic diversity in parthenogenetic triploid Paragonimus westermani.
pubmed:affiliation
Zoology Department, James Cook University, Townsville, Queensland, Australia. l.herwerden@aims.gov.au
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't