کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
5909734 1570176 2014 10 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
Genome wide survey and analysis of small repetitive sequences in caulimoviruses
ترجمه فارسی عنوان
بررسی ژنوم و بررسی توالی های تکراری کوچک در سابلیموویروس ها
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موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک بوم شناسی، تکامل، رفتار و سامانه شناسی
چکیده انگلیسی
Microsatellites are known to exhibit ubiquitous presence across all kingdoms of life including viruses. Members of the Caulimoviridae family severely affect growth of vegetable and fruit plants and reduce economic yield in diverse cropping systems worldwide. Here, we analyzed the nature and distribution of both simple and complex microsatellites present in complete genome of 44 species of Caulimoviridae. Our results showed, in all analyzed genomes, genome size and GC content had a weak influence on number, relative abundance and relative density of microsatellites, respectively. For each genome, mono- and dinucleotide repeats were found to be highly predominant and are overrepresented in genome of majority of caulimoviruses. AT/TA and GAA/AAG/AGA was the most abundant di- and trinucleotide repeat motif, respectively. Repeats larger than trinucleotide were rarely found in these genomes. Comparative study of occurrence, abundance and density of microsatellite among available RNA and DNA viral genomes indicated that simple repeats were least abundant in genomes of caulimoviruses. Polymorphic repeats even though rare were observed in the large intergenic region of the genome, indicating strand slippage and/or unequal recombination processes do occur in caulimoviruses. To our knowledge, this is the first analysis of microsatellites occurring in any dsDNA viral genome. Characterization of such variations in repeat sequences would be important in deciphering the origin, mutational processes, and role of repeat sequences in viral genomes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Infection, Genetics and Evolution - Volume 27, October 2014, Pages 15-24
نویسندگان
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