correlation of bacterial leaf blight symptoms with presence of sr2
Download
Skip this Video
Download Presentation
Correlation of bacterial leaf blight symptoms with presence of Sr2

Loading in 2 Seconds...

play fullscreen
1 / 15

Correlation of bacterial leaf blight symptoms with presence of Sr2 - PowerPoint PPT Presentation


  • 111 Views
  • Uploaded on

Correlation of bacterial leaf blight symptoms with presence of Sr2. Bob Bowden Seifollah P. Kiani Eduard Akhunov. Yr Mist Chamber Conditions. 10-15°C, 100% relative humidity for 14-16 hours. Symptoms From Yr Mist Chamber. Bacterial Leaf Blight caused by Pseudomonas syringae pv . syringae.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Correlation of bacterial leaf blight symptoms with presence of Sr2' - arden


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
correlation of bacterial leaf blight symptoms with presence of sr2

Correlation of bacterial leaf blight symptoms with presence of Sr2

Bob Bowden

Seifollah P. Kiani

Eduard Akhunov

yr mist chamber conditions
Yr Mist Chamber Conditions

10-15°C, 100% relative humidity for 14-16 hours

crosses for blb mapping
Crosses for BLB Mapping
  • Jagger/Thunder CL, n=295, F5 RILs
  • KS84HW196/Jagger, n=190, F5 RILs
pbc and sm ratings
PBC and SM Ratings

0 = no melanism

1 = low; few tillers have mild symptoms

2 = moderate; many tillers have mild to moderate symptoms

3 = strong; most tillers have moderate to strong symptoms

correlation coefficients
Correlation Coefficients

* p<0.01

** p<0.001

*** p<0.0001

N=221 or 222

lines with pbc sm and blb
Lines with PBC, SM, and BLB

csSr2 (-)

csSr2 (+)

  • Arlin
  • Bennett
  • C004393
  • Erhardt
  • KS84HW196
  • Snowmass
  • Thunder CL
  • Wendy
  • 2174
  • Avalanche
  • BondCL
  • Centerfield
  • OK05303
  • OK04507
  • OK04415
  • OK04111
  • OK06318
  • HV9W03-1551WP
  • HV9W03-1596R
  • MTS0713
  • Sturdy2K
  • TAM302
summary
Summary
  • Certain varieties develop symptoms similar to BLB when placed in a dew chamber overnight.
  • Inoculation with P. syringae is not required.
  • BLB-like symptom scores correlate with PBC and SM scores as well as Sr2 markers
  • Some Oklahoma varieties like 2174 seem to express low to moderate BLB, PBC, and SM, but do not carry the diagnostic allele for csSr2 marker (Mago et al, 2010)
  • A gene conferring susceptibility to BLB-like lesions appears to be linked to Sr2 on chromosome arm 3BS.
ad