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Next-generation interaction screening to discover CSEP0491 related protein-protein interactions regulating barley powdery mildew disease immunity and susceptibility.

ABSTRACT: The barley powdery mildew effector (CSEP0491) dataset was part of a larger Y2H screen (GEO GSE150396) to identify novel proteins involved in barley immune responses. Yeast-two-hybrid (Y2H) screening was coupled with next-generation sequencing to identify and quantify interacting proteins. The CSEP0491 bait was mated to a cDNA prey library derived from a 0-48 hour time course of infected leaf tissue. Screens were performed in batch liquid culture to enrich yeast populations for cells expressing positive interactions. After two rounds of enrichment under selective (Histidine absent) and non-selective (Histidine present) conditions, yeast cells were collected. Y2H plasmids were extracted and prey cDNA amplicons were generated via low-cycle PCR. Fragmented amplicons were used as input to generate sequencing libraries and processed on the HiSeq 3000 platform. Reads were mapped to the barley and Blumeria graminis genomes and read counts were analyzed using a custom data processing and scoring pipeline. Putative interactors were cloned and binary Y2H was used to confirm interactions.

ORGANISM(S): Hordeum vulgare Blumeria hordei

PROVIDER: GSE166108 | GEO | 2022/04/21

REPOSITORIES: GEO

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