Loss of Function of a Proline-Containing Protein Confers Durable Disease Resistance in Rice

Author:

Fukuoka Shuichi1,Saka Norikuni2,Koga Hironori3,Ono Kazuko1,Shimizu Takehiko4,Ebana Kaworu1,Hayashi Nagao5,Takahashi Akira5,Hirochika Hirohiko6,Okuno Kazutoshi7,Yano Masahiro1

Affiliation:

1. QTL Genomics Research Center, National Institute of Agrobiological Sciences, Kannondai 2-1-2, Tsukuba, Ibaraki 305-8602, Japan.

2. Mountainous Region Agricultural Research Institute, Aichi Agricultural Research Center, Inahasi, Toyota, Aichi 441-2513, Japan.

3. Bioproduction Sciences, Ishikawa Prefectural University, Suematsu 1-308, Nonoichi-machi, Ishikawa 921-8836, Japan.

4. Institute of the Society for Techno-Innovation of Agriculture, Forestry and Fisheries, Ippaizuka, Tsukuba, Ibaraki 305-0854, Japan.

5. Division of Plant Sciences, National Institute of Agrobiological Sciences, Kannondai 2-1-2, Tsukuba, Ibaraki 305-8602, Japan.

6. Division of Genome and Biodiversity Research, National Institute of Agrobiological Sciences, Kannondai 2-1-2, Tsukuba, Ibaraki 305-8602, Japan.

7. Graduate School of Life and Environmental Sciences, University of Tsukuba, Tennohdai 1-1-1, Tsukuba, Ibaraki 305-8572, Japan.

Abstract

Blast-Resistant Rice The durability of disease resistance for an agricultural crop reflects the extent to which the defense stands up to evolutionary dodges on the part of the pathogen. Pi21 , which is a quantitative trait locus (QTL) of rice, contributes to a particularly durable resistance to a fungal rice blast disease: Rice plants carrying the resistant allele have been in cultivation for more than a century, and yet the pathogen has been unable to find a way through the defense. Fukuoka et al. (p. 998 ; see the news story by Normile ) have now cloned the responsible Pi21 QTL allele and were able to separate Pi21 resistance from tightly linked reductions in grain quality, paving the way for more widespread use of this allele in rice breeding.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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