2003
DOI: 10.1590/s1519-69842003000300009
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Abstract: We have examined phylogenetic relationships in seven pathogenesis-related (PR) protein families. Withinfamily comparisons involved 79 species, 166 amino acid sequences, and 1,791 sites. For 37 species, 124 different PR isoforms were identified (an average of 3.3 per species). Thirty-one of the 37 species investigated tended to cluster together (84%). Of the 17 clusters distinguished in the seven phylogenetic trees, 10 (59%) were in agreement with their taxonomic status, ascertained at the family level. The str… Show more

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“…This was also observed for six other PR families by Freitas et al (2003b). Relationships of this nature are common in multigenic families, in which a large degree of gene repeats have occurred leading to what had been called concerted evolution (Cooper, 1999).…”
Section: Discussionmentioning
confidence: 67%
“…This was also observed for six other PR families by Freitas et al (2003b). Relationships of this nature are common in multigenic families, in which a large degree of gene repeats have occurred leading to what had been called concerted evolution (Cooper, 1999).…”
Section: Discussionmentioning
confidence: 67%