39 14 39 56 2015 39

L4

26 8 27

Development of Capsicum Rootstock Cultivars ‘L4 Dai-Power’ and ‘Daichikara’ with Resistance to Bacterial Wilt and Phytophthora Blight

Hiroshi Matsunaga, Takeo Saito, Atsushi Saito, Tatemi Yoshida, Takanori Sato, Yoshiteru Sakata and Shinji Monma

I

Matsunaga 20102011

1993

Matsunaga 2013

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F1 Atlantic PETOSEED CO., INC.

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1454

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5

6 L4 L4

1 Boukema, I. W. 1982 Resistance to a new strain of TMV in Capsicum chacoense HUNZ. Capsicum Newsletter., , 49-53.

2 Boukema, I. W. 1984 Resistance to TMV in Capsicum chacoense HUNZ. is governed by an allele of L-locus. Capsicum Newsletter., , 47-48.

3 Matsunaga, H. and S. Monma 1999 Sources of resistance to bacterial wilt in Capsicum. J. Japan. Soc. Hort. Sci., : 753-761.

4 2008

. ,101.

5 Matsunaga, H., A. Saito and T. Saito (2010): Development and characterization of a Capsicum rootstock variety, Dai-Power , that is resistant to Phytophthora blight, bacterial wilt, and pepper mild mottle virus. J. Prohens and A. Rodriguez-Burruezo (eds.). Advances in genetics and breeding of Capsicum and eggplant. ,503-510. Editorial de la Universitat Politecnica de Valencia, Valencia.

6 Matsunaga, H., T. Saito and A. Saito (2011): Evaluation resistance to bacterial wilt and phytophthora blight in Capsicum genetic resources collected in Myanmar. J. Japan. Soc. Hort. Sci., , 426-433.

7 Matsunaga, H., A. Saito and T. Saito 2013 Evaluation of Japanese Capsicum rootstock cultivars for resistance to Phytophthora blight and bacterial wilt, and for yield in grafted sweet pepper. S. Lantari and G. L. Rotino (eds). Breakthroughs in the Genetics and Breeding of Capsicum and Eggplant, 401-404. Comitao per I'organizzazione degli eventi DISAFSA, Torino.

8 Mimura, Y., M. Yoshikawa and M. Hirai (2009): Pepper accession LS2341 is highly resistant to Ralstonia solanacearum strains from Japan. HortScience, , 2038-2040.

9 Ortega, R. G., C. P. Espanol and J. C. Zueco (1991) : Genetics of resistance to Phytophthora capsici in the pepper line ‘SCM-334’. Plant Breeding, , 50-55.

10 2011 PMMoV

. , 39-50.11 2005

482-48612

2010. , 287-292.

13 Sugita, T., K. Yamaguchi, T. Kinoshita, K. Yuji, Y. Sugimura, R. Nagata, S. Kawasaki and A. Todoroki (2006): QTL analys i s f o r res i s tance to Phytophthora b l ight (Phytophthora capsicihaploid population of Capsicum annuum. Breeding Science,

, 137-143.14 Ueeda, M., K. M. Kubota and K. Nishi (2006): Contribution

of jasmonic acid to resistance against Phytophthora blight in Capsicum annuum CV. SCM334. Physiol. Mol. Plant Pathol. , , 149-154.

15 Wakimoto, S. (1962): Studies on the multiplication of OP1 phage (Xanthomonas oryzae bacteriophage). 1. One-step growth experiment under various conditions. Sci. Bull. Fac. Agric., Kyushu Univ., , 151-160 (In Japanese with English abstract).

16 197929-37.

17 1993

., , 21-35.

1456

Development of Capsicum Rootstock Cultivars ‘L4 Dai-Power’ and ‘Daichikara’ with Resistance to Bacterial Wilt and Phytophthora Blight

Hiroshi Matsunaga, Takeo Saito, Atsushi Saito, Tatemi Yoshida, Takanori Sato, Yoshiteru Sakata and Shinji Monma

Summary

‘L4 Dai-Power’ and ‘Daichikara’ are Capsicum rootstock cultivars with resistance to bacterial wilt and Phytophthora blight that were developed at the NARO Institute of Vegetable and Tea Science. ‘L4 Dai-Power’ is an F1 hybrid between ‘Dai-Power’ (a rootstock cultivar with resistance to bacterial wilt and Phytophthora blight, and with the L3 gene for resistance to tobamovirus), and AP-5 (an inbred line with resistance to bacterial wilt and Phytophthora blight, and with the L4 gene for resistance to tobamovirus). AP-5 was selected from a cross between AP-PM03 (an inbred line with the L4 gene derived from Capsicum chacoense line PI 260429) and AP-2 (an inbred line with resistance to bacterial wilt and Phytophthora blight), which was derived from a cross between ‘Kyonami’ (a commercial cultivar with resistant to bacterial wilt; Takii Seed, Japan) and AC2258 (an inbred line with resistance to Phytophthora blight). ‘Daichikara’ is an F1 hybrid between AP-2 and CBP-3 (an inbred line with resistance to bacterial wilt and Phytophthora blight), which was selected from a cross between an F8 plant derived from a cross between ‘Kyonami’ and AC2258, and LS2341 (an inbred line with resistance to bacterial wilt). ‘L4 Dai-Power’ and ‘Daichikara’ are resistant to bacterial wilt and Phytophthora blight. ‘L4 Dai-Power’ (with L4 ) is additionally resistant to tobamovirus, but ‘Daichikara’ is not. The yields of scion cultivars on ‘L4 Dai-Power’ and ‘Daichikara’ rootstocks were greater than yields on ‘Dai-Power’, and similar to those on non-grafted scion cultivars. ‘L4 Dai-Power’ and ‘Daichikara’ are available as rootstocks to protect Capsicum plants from bacterial wilt and Phytophthora blight. ‘L4 Dai-Power’ is suitable as a rootstock for Capsicum plants possessing the L4 gene, and ‘Daichikara’ is suitable as a rootstock for plants with no resistance to tobamovirus.

Accepted: August 27, 2014Vegetable Breeding and Genome Division360 Kusawa, Ano, Tsu, Mie, 514-2392 Japan