An overall evaluation of the resistance (R) and pathogenesis-related (PR) superfamilies in soybean, as compared with Medicago and Arabidopsis

An overall evaluation of the resistance (R) and pathogenesis-related (PR) superfamilies in soybean, as compared with Medicago and Arabidopsis

Plants have the ability to recognize and respond to a multitude of pathogens, resulting in a massive reprogramming of the plant to activate defense responses including Resistance (R) and Pathogenesis-Related (PR) genes. Abiotic stresses can also activate PR genes and enhance pathogen resistance, rep...

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Bibliographic Details
Main Authors: Ana C. Wanderley-Nogueira, Luis C. Belarmino, Nina da M. Soares-Cavalcanti, João P. Bezerra-Neto, Ederson A. Kido, Valesca Pandolfi, Ricardo V. Abdelnoor, Eliseu Binneck, Marcelo F. Carazzole, Ana M. Benko-Iseppon
Format: Article
Language:English
Published: Sociedade Brasileira de Genética 2012-01-01
Series:Genetics and Molecular Biology
Subjects:
pathogen response
biotic stress
bioinformatics
Glycine max
Medicago truncatula
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000200007
Description
Summary:Plants have the ability to recognize and respond to a multitude of pathogens, resulting in a massive reprogramming of the plant to activate defense responses including Resistance (R) and Pathogenesis-Related (PR) genes. Abiotic stresses can also activate PR genes and enhance pathogen resistance, representing valuable genes for breeding purposes. The present work offers an overview of soybean R and PR genes present in the GENOSOJA (Brazilian Soybean Genome Consortium) platform, regarding their structure, abundance, evolution and role in the plantpathogen metabolic pathway, as compared with Medicago and Arabidopsis. Searches revealed 3,065 R candidates (756 in Soybean, 1,142 in Medicago and 1,167 in Arabidopsis), and PR candidates matching to 1,261 sequences (310, 585 and 366 for the three species, respectively). The identified transcripts were also evaluated regarding their expression pattern in 65 libraries, showing prevalence in seeds and developing tissues. Upon consulting the SuperSAGE libraries, 1,072 R and 481 PR tags were identified in association with the different libraries. Multiple alignments were generated for Xa21 and PR-2 genes, allowing inferences about their evolution. The results revealed interesting insights regarding the variability and complexity of defense genes in soybean, as compared with Medicago and Arabidopsis.
ISSN:1415-4757
1678-4685

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