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Title: Identification of QTL for Target Leaf Spot resistance in Sorghum bicolor and investigation of relationships between disease resistance and variation in the MAMP response

Abstract

Abstract Target leaf spot (TLS) of sorghum, a foliar disease caused by the necrotrophic fungus Bipolaris cookei ( also known as Bipolaris sorghicola) , can affect grain yield in sorghum by causing premature drying of leaves and defoliation. Two sorghum recombinant inbred line (RIL) populations, BTx623/BTx642 and BTx623/SC155-14E, were assessed for TLS resistance in replicated trials. Using least square mean trait data, four TLS resistance QTL were identified, two in each population. Of these, three were previously unidentified while a major QTL on chromosome 5 in the BTx623/BTx642 RIL population corresponded to the previously identified TLS resistance gene ds1. A set of sorghum lines were assessed for production of reactive oxygen species induced by treatment with the microbe-associated molecular pattern (MAMP) flg22 (a derivative of flagellin). Flg22-induced ROS production varied between lines in a consistent fashion. One QTL associated with variation in the flg22 response was detected in the RIL populations. No evidence was found to link variation in the MAMP response to variation in TLS resistance

Authors:
; ; ; ; ; ORCiD logo; ORCiD logo
Publication Date:
Research Org.:
North Carolina State Univ., Raleigh, NC (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1619602
Alternate Identifier(s):
OSTI ID: 1624514
Grant/Contract Number:  
SC0014116
Resource Type:
Published Article
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Name: Scientific Reports Journal Volume: 9 Journal Issue: 1; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Country of Publication:
United Kingdom
Language:
English
Subject:
Science & Technology - Other Topics

Citation Formats

Kimball, Jennifer, Cui, Yaya, Chen, Dongqin, Brown, Pat, Rooney, William L., Stacey, Gary, and Balint-Kurti, Peter J. Identification of QTL for Target Leaf Spot resistance in Sorghum bicolor and investigation of relationships between disease resistance and variation in the MAMP response. United Kingdom: N. p., 2019. Web. https://doi.org/10.1038/s41598-019-54802-x.
Kimball, Jennifer, Cui, Yaya, Chen, Dongqin, Brown, Pat, Rooney, William L., Stacey, Gary, & Balint-Kurti, Peter J. Identification of QTL for Target Leaf Spot resistance in Sorghum bicolor and investigation of relationships between disease resistance and variation in the MAMP response. United Kingdom. https://doi.org/10.1038/s41598-019-54802-x
Kimball, Jennifer, Cui, Yaya, Chen, Dongqin, Brown, Pat, Rooney, William L., Stacey, Gary, and Balint-Kurti, Peter J. Wed . "Identification of QTL for Target Leaf Spot resistance in Sorghum bicolor and investigation of relationships between disease resistance and variation in the MAMP response". United Kingdom. https://doi.org/10.1038/s41598-019-54802-x.
@article{osti_1619602,
title = {Identification of QTL for Target Leaf Spot resistance in Sorghum bicolor and investigation of relationships between disease resistance and variation in the MAMP response},
author = {Kimball, Jennifer and Cui, Yaya and Chen, Dongqin and Brown, Pat and Rooney, William L. and Stacey, Gary and Balint-Kurti, Peter J.},
abstractNote = {Abstract Target leaf spot (TLS) of sorghum, a foliar disease caused by the necrotrophic fungus Bipolaris cookei ( also known as Bipolaris sorghicola) , can affect grain yield in sorghum by causing premature drying of leaves and defoliation. Two sorghum recombinant inbred line (RIL) populations, BTx623/BTx642 and BTx623/SC155-14E, were assessed for TLS resistance in replicated trials. Using least square mean trait data, four TLS resistance QTL were identified, two in each population. Of these, three were previously unidentified while a major QTL on chromosome 5 in the BTx623/BTx642 RIL population corresponded to the previously identified TLS resistance gene ds1. A set of sorghum lines were assessed for production of reactive oxygen species induced by treatment with the microbe-associated molecular pattern (MAMP) flg22 (a derivative of flagellin). Flg22-induced ROS production varied between lines in a consistent fashion. One QTL associated with variation in the flg22 response was detected in the RIL populations. No evidence was found to link variation in the MAMP response to variation in TLS resistance},
doi = {10.1038/s41598-019-54802-x},
journal = {Scientific Reports},
number = 1,
volume = 9,
place = {United Kingdom},
year = {2019},
month = {12}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1038/s41598-019-54802-x

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