2025-4-16- 8
Home > Archive>Volume 25, Issue 8, 2024 >1283-1296. DOI:10.13430/j.cnki.jpgr.20231031007
PDF HTML XML Export Cite reminder
Barley Leaf Stripe Resistant Identification and Association Analysis with SSR Markers in Barley Germplasms
Author:
Affiliation:

1.State Key Laboratory of Aridland Crop Science/Gansu Provincial Key Laboratory of Crop Improvement & Germplasm Enhancement，Lanzhou 730070;2.College of Agronomy，Gansu Agricultural University，Lanzhou 730070;3.College of Life Sciences and Technology，Gansu Agricultural University，Lanzhou 730070

Fund Project:

Foundation projects： National Natural Science Foundation（32160496，30771331）； National Technical System of Barley and Highland Barley Industry（CARS-05-03B-03）； Gannan Technology Plan Project（22CX8NA047）； Natural Science Foundation for Young Scientists of Gansu Province（20JR5RA010）； Innovation Fund of Gansu Provincial Education Department（2021A-055）；Industry Support Program of Gansu Provincial Education Department（2021CYZC-12）； Provincial College Students Innovation and Entrepreneurship Training Program of Gansu Province（S202210733005）

  • Article
    • | |
  • Metrics
    • |
  • Reference
    • |
  • Related
    • |
  • Cited by
    • | |
  • Comments
    Abstract:

    Barley leaf stripe is one of the most serious diseases affecting barley yield and quality. In order to determine the resistant differences of barley germplasm to Pyrenophora graminea and explore candidate markers associated with resistance to Pyrenophora graminea. In this study， we identified the genetic diversity and population structure of 137 barley germplasms by 97 SSR markers and combined them with the results of resistance identification for association analysis. The results showed that 18 accessions were identified to be immunity， 27 highly resistant， 28 resistant， 42 susceptible， and 22 highly susceptible by artificial inoculation with Pyrenophora graminea strain QWC. A total of 651 alleles were detected in 85 primer pairs， with an average of 7.57 alleles. The genetic diversity index ranged from 0.0401 to 0.8646， with an average value of 0.5799. Polymorphism information content ranged from 0.0393 to 0.8498， and the average was 0.5155， the genetic distances ranged from 0.1021 to 0.4807， with an average of 0.2774. The 137 barley germplasms were divided into four subpopulations by Cluster analysis and population structure analysis. A total of seven markers significantly （P<0.05） were obtainted to be associated with barley resistance to Pyrenophora graminea based on the general linear model， with the explained rates ranging from 5.80% to 17.89%， EBmatc0039 had the highest explained rate. EBmac77 and MGB357 were significantly associated with resistance to barley leaf stripe（P<0.01）， the two markers' rate of phenotypic variation explained were 6.07% and 9.60% in General Linear Model. The results of this study can provide reference for barley resistance to Pyrenophora graminea breeding.

    Reference
    Related
    Cited by
Get Citation

Copy
Share
Article Metrics
  • Abstract:
  • PDF:
  • HTML:
  • Cited by:
History
  • Received:October 31,2023
  • Online: August 09,2024
Article QR Code
You are the th visitor 京ICP备09069690号-23
® 2025 All Rights Reserved
Supported by:Beijing E-Tiller Technology Development Co., Ltd.
Firefox, Chrome, IE10, IE11 are recommended. Other browsers are not recommended.