Metatranscriptomic analysis of small RNAs present in soybean deep sequencing libraries

• Main Authors: Lorrayne Gomes Molina, Guilherme Cordenonsi da Fonseca, Guilherme Loss de Morais, Luiz Felipe Valter de Oliveira, Joseane Biso de Carvalho, Franceli Rodrigues Kulcheski, Rogerio Margis
• Format: Article
• Language: English
• Published: Sociedade Brasileira de Genética 2012-01-01
• Series: Genetics and Molecular Biology
• Subjects: next generation sequencing; small RNA; siRNA; molecular markers
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000200010
• ISSN: 1415-4757; 1678-4685

A large number of small RNAs unrelated to the soybean genome were identified after deep sequencing of soybean small RNA libraries. A metatranscriptomic analysis was carried out to identify the origin of these sequences. Comparative analyses of small interference RNAs (siRNAs) present in samples collected in open areas corresponding to soybean field plantations and samples from soybean cultivated in greenhouses under a controlled environment were made. Different pathogenic, symbiotic and free-living organisms were identified from samples of both growth systems. They included viruses, bacteria and different groups of fungi. This approach can be useful not only to identify potentially unknown pathogens and pests, but also to understand the relations that soybean plants establish with microorganisms that may affect, directly or indirectly, plant health and crop production.