نبذة مختصرة : Using bioinformatics software and database, we have characterized the microsatellite pattern in theV. volvaceagenome and compared it with microsatellite patterns found in the genomes of four other edible fungi:Coprinopsis cinerea,Schizophyllum commune,Agaricus bisporus,andPleurotus ostreatus. A total of 1346 microsatellites have been identified, with mono-nucleotides being the most frequent motif. The relative abundance of microsatellites was lower in coding regions with 21 No./Mb. However, the microsatellites in theV. volvaceagene models showed a greater tendency to be located in the CDS regions. There was also a higher preponderance of trinucleotide repeats, especially in the kinase genes, which implied a possible role in phenotypic variation. Among the five fungal genomes, microsatellite abundance appeared to be unrelated to genome size. Furthermore, the short motifs (mono- to tri-nucleotides) outnumbered other categories although these differed in proportion. Data analysis indicated a possible relationship between the most frequent microsatellite types and the genetic distance between the five fungal genomes.
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