Abstract:
:The observed and expected frequencies of occurrence of microsatellites in the yeast Saccharomyces cerevisiae were investigated. In all cases, the observed frequencies exceeded the expected ones. In contrast to predictions by Messier et al. (1996), there is no critical number of repeats beyond which the observed frequencies of microsatellites significantly exceed the frequencies expected in a random DNA sequence of the same size. Rather, the degree of deviation from expectation was found to be dependent on the length of the microsatellite. That is, a fourfold concatemeric repeat of 3 bp was found to deviate from expectation as much as three-fold concatemeric repeat of 4 bp. These findings suggest that microsatellites evolve through strand-slippage events, rather than recombination events. This, in turn, suggests that the chances of erroneous hybridizations leading to strand-slippage are length dependent.
journal_name
J Mol Evoljournal_title
Journal of molecular evolutionauthors
Pupko T,Graur Ddoi
10.1007/pl00006474keywords:
subject
Has Abstractpub_date
1999-03-01 00:00:00pages
313-6issue
3eissn
0022-2844issn
1432-1432journal_volume
48pub_type
杂志文章abstract::Analysis of mitochondrial DNAs (mtDNAs) from parthenogenetic lizards of the Heteronotia binoei complex with restriction enzymes revealed an approximately 5-kb addition present in all 77 individuals. Cleavage site mapping suggested the presence of a direct tandem duplication spanning the 16S and 12S rRNA genes, the con...
journal_title:Journal of molecular evolution
pub_type: 杂志文章
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journal_title:Journal of molecular evolution
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journal_title:Journal of molecular evolution
pub_type: 杂志文章
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journal_title:Journal of molecular evolution
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journal_title:Journal of molecular evolution
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journal_title:Journal of molecular evolution
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journal_title:Journal of molecular evolution
pub_type: 杂志文章
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journal_title:Journal of molecular evolution
pub_type: 杂志文章
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更新日期:1998-08-01 00:00:00
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journal_title:Journal of molecular evolution
pub_type: 杂志文章
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journal_title:Journal of molecular evolution
pub_type: 杂志文章
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更新日期:1990-12-01 00:00:00
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journal_title:Journal of molecular evolution
pub_type: 杂志文章
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pub_type: 杂志文章
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更新日期:2003-03-01 00:00:00
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journal_title:Journal of molecular evolution
pub_type: 杂志文章
doi:10.1007/BF00160400
更新日期:1994-12-01 00:00:00
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journal_title:Journal of molecular evolution
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journal_title:Journal of molecular evolution
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abstract::LINE-1 (L1) elements constitute the major family of retrotransposons in mammalian genomes. Here we report the first investigation of L1 evolution in New World monkeys (NWM). Two regions of the second open-reading frame were analyzed by two methods in three NWM species, the squirrel monkey (Saimiri sciureus), the tamar...
journal_title:Journal of molecular evolution
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journal_title:Journal of molecular evolution
pub_type: 杂志文章
doi:10.1007/s00239-004-0324-0
更新日期:2005-10-01 00:00:00
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journal_title:Journal of molecular evolution
pub_type: 杂志文章
doi:10.1007/BF00178599
更新日期:1992-09-01 00:00:00
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journal_title:Journal of molecular evolution
pub_type: 杂志文章
doi:10.1007/BF00163805
更新日期:1994-08-01 00:00:00
abstract::Recombination has been suggested to be an important factor for the genetic variation of bacterial genes, but few studies have dealt with intragenic recombination between the same or closely related species of cyanobacteria. Here we provide strong evidence for recombination in the microcystin synthetase (mcy) gene clus...
journal_title:Journal of molecular evolution
pub_type: 杂志文章
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journal_title:Journal of molecular evolution
pub_type: 杂志文章
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journal_title:Journal of molecular evolution
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pub_type: 杂志文章
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更新日期:2003-04-01 00:00:00
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journal_title:Journal of molecular evolution
pub_type: 杂志文章
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更新日期:1999-06-01 00:00:00