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SSR data mined from expressed sequence tags of phytoparasitic nematodes Cover

SSR data mined from expressed sequence tags of phytoparasitic nematodes

By: Q. Huang,  X. Cheng,  B. Xie and  R. Xu  
Open Access
|Feb 2010

Abstract

SSR markers have become the most popular resource for studying population genetic variation in eukaryotes. However, few studies with SSR markers have been carried out with phytoparasitic nematodes. In this study a primary survey on EST-SSRs was made utilizing bioinformatics methods to derive SSRs from expressed sequence tags (ESTs) of 16 species of PPN, which belong to 7 genera and 5 families. The results showed that trinucleotide repeats were the most abundant SSRs in coding ESTs, while tetranucleotide SSRs were predominant in non-coding ESTs and genome sequences. AG/CT, AAC/GTT and (AAAN)n motifs were predominant, and CG/GC, ACT/AGT motifs were scanty in the ESTs of most genera and species. SSRs were more abundant in non-coding ESTs than in coding ESTs. The distribution frequencies of SSR motifs in coding ESTs, non-coding ESTs and genomes are different. Our results will provide useful information for screening SSRs from each genus and species for further genetic study of phytoparastic nematodes.

DOI: https://doi.org/10.2478/s11687-010-0002-2 | Journal eISSN: 1336-9083 | Journal ISSN: 0440-6605
Language: English
Page range: 8 - 19
Published on: Feb 13, 2010
Published by: Slovak Academy of Sciences, Institute of Parasitology
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2010 Q. Huang, X. Cheng, B. Xie, R. Xu, published by Slovak Academy of Sciences, Institute of Parasitology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.