Tempo and Mode of Ty Element Evolution in Saccharomyces cerevisiae
نویسندگان
چکیده
منابع مشابه
Tempo and mode of Ty element evolution in Saccharomyces cerevisiae.
The Saccharomyces cerevisiae genome contains five families of long terminal repeat (LTR) retrotransposons, Ty1-Ty5. The sequencing of the S. cerevisiae genome provides an unprecedented opportunity to examine the patterns of molecular variation existing among the entire genomic complement of Ty retrotransposons. We report the results of an analysis of the nucleotide and amino acid sequence varia...
متن کاملTy element-induced temperature-sensitive mutations of Saccharomyces cerevisiae.
Temperature-sensitive mutants of Saccharomyces cerevisiae were isolated by insertional mutagenesis using the HIS3 marked retrotransposon TyH3HIS3. In such mutants, the TyHIS3 insertions are expected to identify loci which encode genes essential for cell growth at high temperatures but dispensable at low temperatures. Five mutations were isolated and named hit for high temperature growth. The hi...
متن کاملTy Elements of the Yeast Saccharomyces Cerevisiae
Transposable elements in the yeast Saccharomyces cerevisiae are a heterogeneous group of mobile genetic elements. Ty elements transpose via an intermediate RNA-molecule using the same replication and integration mechanisms as the metazoan retroviruses. Ty1 is a retrotransposons with life cycle very similar to that of oncogenes. This similarity provides an attractive model for virus-host interac...
متن کاملTempo and mode in evolution.
George Gaylord Simpson said in his classic Tempo andMode in Evolution (1) that paleontologists enjoy special advantages over geneticists on two evolutionary topics. One general topic, suggested by the word "tempo," has to do with "evolutionary rates. . ., their acceleration and deceleration, the conditions of exceptionally slow or rapid evolutions, and phenomena suggestive of inertia and moment...
متن کاملTempo and mode of multicellular adaptation in experimentally evolved Saccharomyces cerevisiae.
Multicellular complexity is a central topic in biology, but the evolutionary processes underlying its origin are difficult to study and remain poorly understood. Here we use experimental evolution to investigate the tempo and mode of multicellular adaptation during a de novo evolutionary transition to multicellularity. Multicelled "snowflake" yeast evolved from a unicellular ancestor after 7 da...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Genetics
سال: 1999
ISSN: 1943-2631
DOI: 10.1093/genetics/151.4.1341