Core RxLR Effectors in Phytopathogenic Oomycetes: A promising Way to Breeding for Durable Resistance in Plants?

Jane Chepsergon; Thabiso Motaung; Lucy Moleleki

doi:10.20944/preprints202010.0217.v1

Preprint Review Version 1 Preserved in Portico This version is not peer-reviewed

Version 1 : Received: 10 October 2020 / Approved: 12 October 2020 / Online: 12 October 2020 (09:49:33 CEST)

Phytopathogenic oomycetes are known to infect a host plant successfully due to their ability to secrete a set of protein effectors. Of interest to many researchers are effectors with the N-terminal RxLR motif (Arginine-any amino acid-Leucine-Arginine). Owing to the genome sequencing, we can now comprehend the high level of diversity among oomycete effectors, and similarly, their conservation within and among species core RxLR effectors (CREs). Currently, there are a couple of putative CREs that have been identified in oomycetes. The functional characterization of these CREs proposes their virulence role with the potential of targeting central cellular processes that are conserved across diverse plant species. This could be harnessed in engineering plants for broad-spectrum and durable resistance.

oomycetes; effectors; durable-resistance; virulence

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Core RxLR Effectors in Phytopathogenic Oomycetes: A promising Way to Breeding for Durable Resistance in Plants?

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