Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

Mla-specified Transcriptional Responses in Barley-Powdery Mildew Interactions

ABSTRACT: A large-scale parallel expression analysis was conducted to elucidate Mla-specified responses to powdery mildew infection using 22K Barley1 GeneChip probe arrays. Our goal was to identify genes differentially expressed in incompatible (resistant) vs. compatible (susceptible) and Mla-specified Rar1-dependent vs. -independent interactions. A split-split-plot design with 108 experimental units (3 replications x 2 isolates x 3 genotypes x 6 time points) was used to profile near-isogenic lines containing the Mla1, Mla6, and Mla13 resistance specificities in response to inoculation with the Blumeria graminis f. sp. hordei (Bgh) isolates 5874 (AvrMla1, AvrMla6) and K1 (AvrMla1, AvrMla13). ****[PLEXdb(http://www.plexdb.org) has submitted this series at GEO on behalf of the original contributor, Rico Caldo. The equivalent experiment is BB4 at PLEXdb.] genotype: CI 16137 (Mla1) - pathogen isolates: Bgh 5874 - time: 0 hai(3-replications); genotype: CI 16137 (Mla1) - pathogen isolates: Bgh 5874 - time: 8 hai(3-replications); genotype: CI 16137 (Mla1) - pathogen isolates: Bgh 5874 - time: 16 hai(3-replications); genotype: CI 16137 (Mla1) - pathogen isolates: Bgh 5874 - time: 20 hai(3-replications); genotype: CI 16137 (Mla1) - pathogen isolates: Bgh 5874 - time: 24 hai(3-replications); genotype: CI 16137 (Mla1) - pathogen isolates: Bgh 5874 - time: 32 hai(3-replications); genotype: CI 16137 (Mla1) - pathogen isolates: Bgh K1 - time: 0 hai(3-replications); genotype: CI 16137 (Mla1) - pathogen isolates: Bgh K1 - time: 8 hai(3-replications); genotype: CI 16137 (Mla1) - pathogen isolates: Bgh K1 - time: 16 hai(3-replications); genotype: CI 16137 (Mla1) - pathogen isolates: Bgh K1 - time: 20 hai(3-replications); genotype: CI 16137 (Mla1) - pathogen isolates: Bgh K1 - time: 24 hai(3-replications); genotype: CI 16137 (Mla1) - pathogen isolates: Bgh K1 - time: 32 hai(3-replications); genotype: CI 16151 (Mla6) - pathogen isolates: Bgh 5874 - time: 0 hai(3-replications); genotype: CI 16151 (Mla6) - pathogen isolates: Bgh 5874 - time: 8 hai(3-replications); genotype: CI 16151 (Mla6) - pathogen isolates: Bgh 5874 - time: 16 hai(3-replications); genotype: CI 16151 (Mla6) - pathogen isolates: Bgh 5874 - time: 20 hai(3-replications); genotype: CI 16151 (Mla6) - pathogen isolates: Bgh 5874 - time: 24 hai(3-replications); genotype: CI 16151 (Mla6) - pathogen isolates: Bgh 5874 - time: 32 hai(3-replications); genotype: CI 16151 (Mla6) - pathogen isolates: Bgh K1 - time: 0 hai(3-replications); genotype: CI 16151 (Mla6) - pathogen isolates: Bgh K1 - time: 8 hai(3-replications); genotype: CI 16151 (Mla6) - pathogen isolates: Bgh K1 - time: 16 hai(3-replications); genotype: CI 16151 (Mla6) - pathogen isolates: Bgh K1 - time: 20 hai(3-replications); genotype: CI 16151 (Mla6) - pathogen isolates: Bgh K1 - time: 24 hai(3-replications); genotype: CI 16151 (Mla6) - pathogen isolates: Bgh K1 - time: 32 hai(3-replications); genotype: CI 16155 (Mla13) - pathogen isolates: Bgh 5874 - time: 0 hai(3-replications); genotype: CI 16155 (Mla13) - pathogen isolates: Bgh 5874 - time: 8 hai(3-replications); genotype: CI 16155 (Mla13) - pathogen isolates: Bgh 5874 - time: 16 hai(3-replications); genotype: CI 16155 (Mla13) - pathogen isolates: Bgh 5874 - time: 20 hai(3-replications); genotype: CI 16155 (Mla13) - pathogen isolates: Bgh 5874 - time: 24 hai(3-replications); genotype: CI 16155 (Mla13) - pathogen isolates: Bgh 5874 - time: 32 hai(3-replications); genotype: CI 16155 (Mla13) - pathogen isolates: Bgh K1 - time: 0 hai(3-replications); genotype: CI 16155 (Mla13) - pathogen isolates: Bgh K1 - time: 8 hai(3-replications); genotype: CI 16155 (Mla13) - pathogen isolates: Bgh K1 - time: 16 hai(3-replications); genotype: CI 16155 (Mla13) - pathogen isolates: Bgh K1 - time: 20 hai(3-replications); genotype: CI 16155 (Mla13) - pathogen isolates: Bgh K1 - time: 24 hai(3-replications); genotype: CI 16155 (Mla13) - pathogen isolates: Bgh K1 - time: 32 hai(3-replications)

ORGANISM(S): Hordeum vulgare

SUBMITTER: Rico Caldo

PROVIDER: E-GEOD-33396 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Stage-specific suppression of basal defense discriminates barley plants containing fast- and delayed-acting Mla powdery mildew resistance alleles.

Caldo Rico A RA Nettleton Dan D Peng Jiqing J Wise Roger P RP

Molecular plant-microbe interactions : MPMI 20060901 9

Nonspecific recognition of pathogen-derived general elicitors triggers the first line of plant basal defense, which in turn, preconditions the host towards resistance or susceptibility. To elucidate how basal defense responses influence the onset of Mla (mildew resistance locus a)-specified resistance, we performed a meta-analysis of GeneChip mRNA expression for 155 basal defense-related genes of barley (Hordeum vulgare) challenged with Blumeria graminis f. sp. hordei, the causal agent of powder ...[more]

PMID: 16941898

Publication: 1/3

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Project description:Time-course expression profiles of Bgh challenged barley cultivar C.I. 16151 (harboring the Mla6 powdery mildew resistance allele) and its fast-neutron-derived "Bgh-induced tip cell death1" mutant, bcd1, were compared using the 22K Barley1 GeneChip. Planting, stage of seedlings, harvesting, and experimental design were part of a larger experiment described by Caldo et al. (2004). PLEXdb BB4. Experiment Design: C.I. 16151 (wildtype) and bcd1 (mutant) were planted in separate 20 x 30-cm flats using sterilized potting soil. Each experimental flat consisted of six rows of 15 seedlings, with rows randomly assigned to one of six harvest time points (0, 8, 16, 20, 24, and 32 hai). Seedlings grown to the 1st leaf stage with 2nd leaf unfolded were inoculated with a high density of fresh conidiospores (84 +/- 19 spores/mm2). Groups of flats were placed at 18C (8-hour darkness, 16-hour light) in separate controlled growth chambers corresponding to the Bgh isolates. Rows of plants were harvested at each assigned time points and snap frozen in liquid nitrogen. The entire experiment was repeated three times in a standard split-split-plot design with 72 experimental units (2 genotypes x 2 pathogen isolates x 6 time points x 3 replications). Treatment Description: The samples constituted pairwise combinations of the the cultivar C.I. 16151(containing the Mla6 resistance allele), and its fast-neutron-derived "Bgh-induced tip cell death1" mutant, bcd1 with the two Bgh (Blumeria graminis f. sp. hordei) isolates, 5874 (AvrMla6, AvrMla1) and K1 (AvrMla13, AvrMla1). For each replication, individual genotypes were planted in separate 20 x 30 cm flats using sterilized potting soil. Each experimental flat consisted of six rows of 15 seedlings, with rows randomly assigned to one of six harvest times (0, 8, 16, 20, 24, and 32 hai). Seedlings were grown to the 2nd-leaf stage with 1st leaf unfolded, and inoculation was performed at 4 PM Central Standard Time by tipping the flats at 45oC and dusting the plants with a high density of fresh conidiospores [84 +/- 19 spores/mm2]. This procedure was repeated from the opposite angle to ensure that a high proportion of the cells are in contact with the fungus. This conidial density per unit leaf area routinely results in greater than 50% of epidermal cells that are successfully infected. Groups of flats were placed at 18oC (8 hours darkness, 16 hours light, 8 hours darkness) in separate controlled growth chambers corresponding to the Bgh isolate. Rows of plants were harvested at their assigned harvest times and flash-frozen in liquid nitrogen. ****[PLEXdb(http://www.plexdb.org) has submitted this series at GEO on behalf of the original contributor, Roger P Wise. The equivalent experiment is BB46 at PLEXdb.] genotype: Mla6 - pathogen isolates: 5874 - time: 0(3-replications); genotype: Mla6 - pathogen isolates: 5874 - time: 8(3-replications); genotype: Mla6 - pathogen isolates: 5874 - time: 16(3-replications); genotype: Mla6 - pathogen isolates: 5874 - time: 20(3-replications); genotype: Mla6 - pathogen isolates: 5874 - time: 24(3-replications); genotype: Mla6 - pathogen isolates: 5874 - time: 32(3-replications); genotype: Mla6 - pathogen isolates: K1 - time: 0(3-replications); genotype: Mla6 - pathogen isolates: K1 - time: 8(3-replications); genotype: Mla6 - pathogen isolates: K1 - time: 16(3-replications); genotype: Mla6 - pathogen isolates: K1 - time: 20(3-replications); genotype: Mla6 - pathogen isolates: K1 - time: 24(3-replications); genotype: Mla6 - pathogen isolates: K1 - time: 32(3-replications); genotype: 11542 - pathogen isolates: 5874 - time: 0(3-replications); genotype: 11542 - pathogen isolates: 5874 - time: 8(3-replications); genotype: 11542 - pathogen isolates: 5874 - time: 16(3-replications); genotype: 11542 - pathogen isolates: 5874 - time: 20(3-replications); genotype: 11542 - pathogen isolates: 5874 - time: 24(3-replications); genotype: 11542 - pathogen isolates: 5874 - time: 32(3-replications); genotype: 11542 - pathogen isolates: K1 - time: 0(3-replications); genotype: 11542 - pathogen isolates: K1 - time: 8(3-replications); genotype: 11542 - pathogen isolates: K1 - time: 16(3-replications); genotype: 11542 - pathogen isolates: K1 - time: 20(3-replications); genotype: 11542 - pathogen isolates: K1 - time: 24(3-replications); genotype: 11542 - pathogen isolates: K1 - time: 32(3-replications)

Project description:A split-split-plot design with 144 experimental units (3 replications x 4 genotypes x 6 time points x 2 treatment types) was used to profile barley plants containing variants of Mla1 and Mla6 powdery mildew resistance genes in response to inoculation with the Blumeria graminis f. sp. hordei (Bgh) isolates 5874 (AvrMla1, AvrMla6). Barley leaves were harvested from inoculated and non-inoculated plants at 6 time points (0,8,16,20,24 and 32 hrs) after Bgh inoculation. ****[PLEXdb(http://www.plexdb.org) has submitted this series at GEO on behalf of the original contributor, Rico Caldo. The equivalent experiment is BB10 at PLEXdb.] genotype: Mla1 - time: 0 - Treated or untreated: Inoculated (3-replications); genotype: Mla1 - time: 0 - Treated or untreated: Non-inoculated(3-replications); genotype: Mla1 - time: 8 - Treated or untreated: Inoculated (3-replications); genotype: Mla1 - time: 8 - Treated or untreated: Non-inoculated(3-replications); genotype: Mla1 - time: 16 - Treated or untreated: Inoculated (3-replications); genotype: Mla1 - time: 16 - Treated or untreated: Non-inoculated(3-replications); genotype: Mla1 - time: 20 - Treated or untreated: Inoculated (3-replications); genotype: Mla1 - time: 20 - Treated or untreated: Non-inoculated(3-replications); genotype: Mla1 - time: 24 - Treated or untreated: Inoculated (3-replications); genotype: Mla1 - time: 24 - Treated or untreated: Non-inoculated(3-replications); genotype: Mla1 - time: 32 - Treated or untreated: Inoculated (3-replications); genotype: Mla1 - time: 32 - Treated or untreated: Non-inoculated(3-replications); genotype: m508 - time: 0 - Treated or untreated: Inoculated (3-replications); genotype: m508 - time: 0 - Treated or untreated: Non-inoculated(3-replications); genotype: m508 - time: 8 - Treated or untreated: Inoculated (3-replications); genotype: m508 - time: 8 - Treated or untreated: Non-inoculated(3-replications); genotype: m508 - time: 16 - Treated or untreated: Inoculated (3-replications); genotype: m508 - time: 16 - Treated or untreated: Non-inoculated(3-replications); genotype: m508 - time: 20 - Treated or untreated: Inoculated (3-replications); genotype: m508 - time: 20 - Treated or untreated: Non-inoculated(3-replications); genotype: m508 - time: 24 - Treated or untreated: Inoculated (3-replications); genotype: m508 - time: 24 - Treated or untreated: Non-inoculated(3-replications); genotype: m508 - time: 32 - Treated or untreated: Inoculated (3-replications); genotype: m508 - time: 32 - Treated or untreated: Non-inoculated(3-replications); genotype: Mla6 - time: 0 - Treated or untreated: Inoculated (3-replications); genotype: Mla6 - time: 0 - Treated or untreated: Non-inoculated(3-replications); genotype: Mla6 - time: 8 - Treated or untreated: Inoculated (3-replications); genotype: Mla6 - time: 8 - Treated or untreated: Non-inoculated(3-replications); genotype: Mla6 - time: 16 - Treated or untreated: Inoculated (3-replications); genotype: Mla6 - time: 16 - Treated or untreated: Non-inoculated(3-replications); genotype: Mla6 - time: 20 - Treated or untreated: Inoculated (3-replications); genotype: Mla6 - time: 20 - Treated or untreated: Non-inoculated(3-replications); genotype: Mla6 - time: 24 - Treated or untreated: Inoculated (3-replications); genotype: Mla6 - time: 24 - Treated or untreated: Non-inoculated(3-replications); genotype: Mla6 - time: 32 - Treated or untreated: Inoculated (3-replications); genotype: Mla6 - time: 32 - Treated or untreated: Non-inoculated(3-replications); genotype: 9472 - time: 0 - Treated or untreated: Inoculated (3-replications); genotype: 9472 - time: 0 - Treated or untreated: Non-inoculated(3-replications); genotype: 9472 - time: 8 - Treated or untreated: Inoculated (3-replications); genotype: 9472 - time: 8 - Treated or untreated: Non-inoculated(3-replications); genotype: 9472 - time: 16 - Treated or untreated: Inoculated (3-replications); genotype: 9472 - time: 16 - Treated or untreated: Non-inoculated(3-replications); genotype: 9472 - time: 20 - Treated or untreated: Inoculated (3-replications); genotype: 9472 - time: 20 - Treated or untreated: Non-inoculated(3-replications); genotype: 9472 - time: 24 - Treated or untreated: Inoculated (3-replications); genotype: 9472 - time: 24 - Treated or untreated: Non-inoculated(3-replications); genotype: 9472 - time: 32 - Treated or untreated: Inoculated (3-replications); genotype: 9472 - time: 32 - Treated or untreated: Non-inoculated(3-replications)

Dataset Information

Mla-specified Transcriptional Responses in Barley-Powdery Mildew Interactions

Publications

Stage-specific suppression of basal defense discriminates barley plants containing fast- and delayed-acting Mla powdery mildew resistance alleles.

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