The evolution of the Gp-Rbp-1 gene in Globodera pallida includes multiple selective replacements.

ABSTRACT: The Globodera pallida SPRYSEC Gp-Rbp-1 gene encodes a secreted protein which induces effector-triggered immunity (ETI) mediated by the Solanum tuberosum disease resistance gene Gpa2. Nonetheless, it is not known how the Andes orogeny, the richness in Solanum species found along the Cordillera or the introduction of the nematode into Europe have affected the diversity of Gp-Rbp-1 and its recognition by Gpa2. We generated a dataset of 157 highly polymorphic Gp-Rbp-1 sequences and identified three Gp-Rbp-1 evolutionary pathways: the 'Northern Peru', 'Peru clade I/European' and 'Chilean' paths. These may have been shaped by passive dispersion of the nematode and by climatic variations that have influenced the nature and diversity of wild host species. We also confirmed that, by an analysis of

SUBMITTER: Carpentier J 

PROVIDER: S-EPMC3440577 | biostudies-literature | 2012 Aug

REPOSITORIES: biostudies-literature