eCite Digital Repository

Delineating a locus conferring Fusarium crown rot resistance on chromosome arm 1HL in barley by developing and analysing a large population derived from near isogenic lines

Citation

Gao, S and Zheng, Z and Hu, H and Jiang, Y and Liu, M and Stiller, J and Zhou, M and Liu, C, Delineating a locus conferring Fusarium crown rot resistance on chromosome arm 1HL in barley by developing and analysing a large population derived from near isogenic lines, Crop Journal, 8, (6) pp. 1002-1010. ISSN 2095-5421 (2020) [Refereed Article]


Preview
PDF
Pending copyright assessment - Request a copy
604Kb
  

DOI: doi:10.1016/j.cj.2020.03.008

Abstract

Fusarium crown rot (FCR), a chronic and severe disease caused by various Fusarium species, is prevalent in semi-arid cropping regions worldwide. One of the major QTL conferring FCR resistance was detected on chromosome arm 1HL (Qcrs.cpi-1H) in barley. To develop markers that can be reliably used to incorporate the resistance locus into breeding programs, we developed and assessed a near-isogenic line-derived population consisting of 1180 recombinant inbred lines targeting the locus. Using this population, we delineated Qcrs.cpi-1H into an interval of 0.4 cM covering a physical length of about 487 kb. Six markers co-segregating with this locus were generated. Co-linearity for genes located in this interval between the genome of barley and those of either rice or Brachypodium distachyon is poor. Three genes with non-synonymous variations between the resistant and susceptible lines were identified within the interval. The results reported in this study not only provide markers for integrating Qcrs.cpi-1H into breeding programs, but also form a solid foundation for cloning the causal gene(s) underlying this locus.

Item Details

Item Type:Refereed Article
Keywords:Fusarium crown rot, barley, fine mapping, NIL-derived population, QTL, co-segregated marker, barley crown rot resistance
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Crop and pasture production
Research Field:Crop and pasture nutrition
Objective Division:Plant Production and Plant Primary Products
Objective Group:Grains and seeds
Objective Field:Barley
UTAS Author:Gao, S (Mr Shang Gao)
UTAS Author:Zhou, M (Professor Meixue Zhou)
ID Code:145366
Year Published:2020
Web of Science® Times Cited:2
Deposited By:TIA - Research Institute
Deposited On:2021-07-19
Last Modified:2021-07-20
Downloads:0

Repository Staff Only: item control page