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Sclerotinia sclerotiorum Phenotyping Project

Explore this analysis online: Binder

This project contains the data and code used for analysis in our preprint:

Miorini TJJ, Kamvar ZN, Higgins R, Raetano CG, Steadman JR, Everhart SE. (2018) Variation in pathogen aggression and cultivar performance against Sclerotinia sclerotiorum in soybean and dry bean from Brazil and the U.S. PeerJ Preprints 6:e26622v1 doi: 10.7287/peerj.preprints.26622v1

If you use any of the scripts or data, please cite the project on the Open Science Framework:

Miorini TJJ, Kamvar ZN, Higgins R, Raetano CG, Steadman JR, Everhart SE (2018) Data and analysis for Variation in pathogen aggression and cultivar performance against Sclerotinia sclerotiorum in soybean and dry bean from the U.S. and Brazil. doi: 10.17605/OSF.IO/2X7FC.

Analysis

Overview

The analysis of variance calculations and plots are generated within the R script Analysis.R. This script makes a direct conversion between the Microsoft Excel file and csv files stored in the clean_data folder and creates the Analsysis.Rout file.

Running the Analyses

On your computer

All package versions are locked to 2018-02-23 with the checkpoint package, which will automatically install all of the required packages locally before the analysis is run. It is assumed you have R version 3.4.3. To run this analysis, you can open it in RStudio and click "source", or, from the command line, you can use:

$ R -f Analysis.R &> Analysis.Rout

On the cloud

Alternatively, you can launch an interactive version of this analysis on https://mybinder.org by clicking on this button: Binder

This will launch and RStudio instance on https://mybinder.org with all the necessary packages installed. From there, you can open Analysis.R and run the analysis. Please note, however, that this integration is in Beta and may change in the future. Be aware that it may take some time to build the image before you can inspect the data and analyses.

Data

The data within this repository exist across nine sheets within a Microsoft Excel file. Below, we will give details about the data contained within these sheets. We are including data in this repository that was collected during the project, but not used in this publication.

All the raw data are stored in the top level of this repository. Processed data are placed in the folder called clean_data. The data are cleaned in the first part of the R script and track changes should confirm that no data were changed in the cleaning process.

Mensure and score in different days_straw test.csv

This sheet contains straw test scores for 3, 6, and 8 days after inoculation for the detached leaf bioassay of dry bean cultivar G122. The area under the mycelial progress curve was calculated from these data.

This is a companion file to Sheet B in Brazilian agressiveness_raw_data-final2.xlsx

Column Name Description
X1 (Blank name) TJM isolate number
Block Experimental Block
3 dai Lesion length in centimeters 3 days after inoculation
6 dai Lesion length in centimeters 6 days after inoculation
8 dai Lesion length in centimeters 8 days after inoculation
AUDPC Area under the disease progress curve from evaluations at 3, 6 and 8 days after inoculation
After first node lesion length in centimeters after first node

Corresponding clean data: B_ST_DryBean_G122.csv

Brazilian agressiveness_raw_data-final2.xlsx

This file contains 10 sheets, the first being a coded summary of each subsequent sheet, which are labeled A-I.

Notes

  • Some isolate numbers have been abbreviated in recording the data by eliminating the prefix "97". For example, isolates named 2A, 5B, 4D are actually 972A, 975B, and 974D.
  • Isolates with prefix 972 do not exist in the Steadman collection.
  • Missing data are formatted as ., #VALUE!, or a blank cell.

Sheet A

Corresponding clean data: A_DLB_SoyBean_Dassel.csv

Detached Leaf Bioassay: 70 isolates vs Dassel on soybean.

  • 2100 Rows
  • 6 Columns
  • 70 isolates
  • 10 replicates
  • 3 collection times
  • 4 sections
Column Name Description
Number Row Number
Section An experimental section denoting simultaneous evaluations
Isolate number Numeric isolate number relative to this analysis
Isolate TJM isolate number
Collection Collection time: first=21, second=28, third=35 days after emergence
Area Lesion Area (cm^2^) 48 hours after inoculation

Isolate 1* = from isolate 1 (P). This isolate has * because TJM took sclerotia after he exposed this isolate in dicarboximide fungicide. It grew well in the discriminatory dose used.

Sheet B

Corresponding clean data: B_ST_DryBean_G122.csv

Straw test of 32 isolates on dry bean cultivar G122

  • 384 Rows
  • 6 Columns
  • 32 isolates
  • 12 replicates
Column Name Description
Isolate_number Row Number
Isolate TJM isolate number
8 dai (cm) Lesion length in centimeters 8 days after inoculation
AUDPC Area under the disease progress curve from evaluations at 3, 6 and 8 days after inoculation
After first node lesion length in centimeters after first node
Score Petzoldt & Dickson Straw Test Score (range: 1--9)

This sheet has a companion sheet called "Mensure and score in different days_straw test.csv" that contains data for each day after inoculation.

Sheet C

Detached Leaf Bioassay: 29 isolates vs IAC-Alvorada

Corresponding clean data: C_DLB_DryBean_IAC-Alvorada.csv

  • 870 Rows
  • 11 Columns
  • 29 isolates
  • 25 blocks
Column Name Description
Section An experimental section denoting simultaneous evaluations
Block Experimental block
Isolate_number Experiment-specific number
Isolate TJM isolate number
Collection Collection time: first=21, second=28, third=35 days after emergence
24 horas Lesion area in square centimeters after 24 hours
30 horas Lesion area in square centimeters after 30 hours
36 horas Lesion area in square centimeters after 36 hours
48 horas Lesion area in square centimeters after 48 hours
AUMPD Area Under the Mycelial Progress Curve

Sheet D

Straw test: 28 isolates vs. IAC-Alvorada Brazil

Corresponding clean data: D_ST_DryBean_IAC-Alvorada.csv

  • 308 Rows
  • 4 Columns
  • 28 isolates
  • 11 replicates
Column Name Description
Isolate_number Experiment-specific number
Isolate TJM isolate number
Rep Experimental replicate
Score Petzoldt & Dickson Straw Test Score (range: 1--9)

Sheet E

Detached Leaf Bioassay: Soybean cultivars

Corresponding clean data: E_DLB_Soybean_Cultivars.csv

  • 220 Rows
  • 5 columns
  • 11 varieties
  • 10 biological replicates
  • 2 experimental replicates
Column Name Description
Exp_rep Experimental replicate
Variety Numerical designator for soybean variety
Name Soybean variety name
Rep Biological replicate
Area Lesion Area (cm^2^) 48 hours after inoculation

Sheet F

Detached Leaf Bioassay: First experimental replicate for dry bean cultivars

Corresponding clean data: F_DLB_DryBean_Cultivars-1.csv

This experiment was to determine which isolate was to be used for the DLB 972B or 972D. These were evaluated at different time points:

Isolate 2B: up to 48 hpi Isolate 2D: up to 66 hpi

  • 276 Rows
  • 14 Columns
  • 23 cultivars
  • 12 replicates
  • 69 blocks
Column Name Description
Block Experimental block
Isolate TJM Isolate identifier
Cultivar_number Numerical desginator for dry bean variety
Cultivar_name Dry bean cultivar name
24 lesion area in centimeters 24 hours post inoculation
30 lesion area in centimeters 30 hours post inoculation
36 lesion area in centimeters 36 hours post inoculation
42 lesion area in centimeters 42 hours post inoculation
48 lesion area in centimeters 48 hours post inoculation
54 lesion area in centimeters 54 hours post inoculation
60 lesion area in centimeters 60 hours post inoculation
66 lesion area in centimeters 66 hours post inoculation
AUMPC (48) Area under the mycelial progress curve up to 48 hours post inoculation.
AUMPC (66h) Area under the mycelial progress curve up to 66 hours post inoculation.

Sheet G

Detached Leaf Bioassay: Second experimental replicate for dry bean cultivars with isolate 972B

Corresponding clean data: G_DLB_DryBean_Cultivars-2.csv

  • 276 Rows
  • 9 Columns
  • 23 cultivars
  • 56 blocks
  • 12 replicates
Column Name Description
Block Experimental block
Cultivar_number Numerical designator for dry bean variety
Cultivar_name Dry bean cultivar name
24 lesion area in centimeters 24 hours post inoculation
30 lesion area in centimeters 30 hours post inoculation
36 lesion area in centimeters 36 hours post inoculation
42 lesion area in centimeters 42 hours post inoculation
48 lesion area in centimeters 48 hours post inoculation
AUMPC Area under the mycelial progress curve

Sheet H

Straw Test: First experimental replicate for dry bean cultivars

Corresponding clean data: H_ST_DryBean_Cultivars-1.csv

This experiment was to determine which isolate was to be used for the Straw Test: 972B or 972D.

Note: Because 972B was very aggressive, TJJM had additionally scored some of the isolates higher than 9 according to a Modified Petzoldt and Dickson Scale. However, when reporting the results of these data, numbers higher than 9 were converted to 9.

  • 322 Rows
  • 5 Columns
  • 23 cultivars
  • 7 replicates
  • 2 isolates
  • 13 blocks
Column Name Description
Number Numerical designator for dry bean cultivar
Cultivar Dry bean cultivar name
Rep Experimental replicate
Isolate TJM Isolate identifier
Score Petzoldt & Dickson Straw Test Score (range: 1--9)

Sheet I

Straw Test: Second experimental replicate for dry bean cultivars with isolate 972D

Corresponding clean data: I_ST_DryBean_Cultivars-2.csv

  • 285 Rows
  • 4 columns
  • 23 cultivars
  • 15 replicates
Column Name Description
Number Numerical designator for dry bean cultivar
Cultivar Dry bean cultivar name
Rep Experimental replicate
Score Petzoldt & Dickson Straw Test Score (range: 1--9)

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Project characterizing Ssc phenotypes and cultivar performance

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