• Resistance QTLs controlling leaf and neck blast disease identified in a doubled haploid rice population

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09/08/2023 by   

Metadata

Document Title

Resistance QTLs controlling leaf and neck blast disease identified in a doubled haploid rice population

Author

Korinsak S., Sriprakhon S., Sirithunya K., Sriwongchai T., Wongsaprom C., Plabpla A., Vanavichit A., Toojinda T.

Affiliations

National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Thailand Science Park, Phahonyothin Rd., Khlong Nueng, Khlong Luang, Pathum Thani 12120, Thailand; Faculty of Science and Agricultural Technology, Rajamangala University of Technology Lanna, Chiangmai, 50300, Thailand; Department of Agronomy, Faculty of Agriculture, Kasetsart University, Bangkok, 10900, Thailand; Interdisciplinary Graduate Program in Genetic Engineering and Bioinformatics, Kasetsart University, Bangkok, 10900, Thailand; Department of Agronomy, Faculty of Agriculture at Kamphaeng Saen, Kasetsart University, Kamphaeng Saen Campus, Nakhon Pathom, 73140, Thailand; Rice Science Center, Kasetsart University, Kamphaeng Saen Campus, Nakhon Pathom, 73140, Thailand

Type

Article

Source Title

Euphytica

ISSN

00142336

Year

2023

Volume

219

Issue

4

Page

-

Open Access

All Open Access, Hybrid Gold

Publisher

Springer Science and Business Media B.V.

DOI

10.1007/s10681-023-03161-w

Format

PDF

Abstract

One of the biotic constraints in rice production worldwide is blast disease which can control by planting resistant varieties. To find out effective resistance, blast resistance quantitative trait loci (QTL) were mapped against 20 and 3 virulent isolates for leaf blast and neck blast, respectively, using 111 doubled haploid lines from the cross of IR64 and Azucena. QTLs associated with leaf blast were found on chromosomes 1, 2, 4, 7, 8, 10, 11, and 12 (%R2 = 3.6 – 64.3), while neck blast linked QTLs were identified on chromosomes 1, 6, 10, and 12 (%R2 = 6.4 – 22.6). The new QTLs were identified on chromosome 1; however, most QTLs were mapped in the vicinity of resistance genes in previous references. The genetic relationship of leaf and neck blast was explained by the coincidence of detected QTLs and positive value of pathogenicity correlation (r = 4.5 – 4.7). This study provides reliable QTLs locations that will benefit rice breeding programs to develop new cultivars containing durable and broad-spectrum resistance to leaf and neck blast disease. © 2023, The Author(s).

Funding Sponsor

National Center for Genetic Engineering and Biotechnology

Publication Source

WOS

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