Distribution of photoperiod-insensitive allele Ppd-A1a and its effect on heading time in Japanese wheat cultivars

Masako Seki, Makiko Chono, Tsutomu Nishimura, Mikako Sato, Yasuhiro Yoshimura, Hitoshi Matsunaka, Masaya Fujita, Shunsuke Oda, Katashi Kubo, Chikako Kiribuchi-Otobe, Hisayo Kojima, Hidetaka Nishida, Kenji Kato

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10 Citations (Scopus)

Abstract

The Ppd-A1 genotype of 240 Japanese wheat cultivars and 40 foreign cultivars was determined using a PCRbased method. Among Japanese cultivars, only 12 cultivars, all of which were Hokkaido winter wheat, carried the Ppd-A1a allele, while this allele was not found in Hokkaido spring wheat cultivars or Tohoku- Kyushu cultivars. Cultivars with a photoperiod-insensitive allele headed 6.9-9.8 days earlier in Kanto and 2.5 days earlier in Hokkaido than photoperiod-sensitive cultivars. The lower effect of photoperiod-insensitive alleles observed in Hokkaido could be due to the longer day-length at the spike formation stage compared with that in Kanto. Pedigree analysis showed that 'Purple Straw' and 'Tohoku 118' were donors of Ppd-A1a and Ppd-D1a in Hokkaido wheat cultivars, respectively. Wheat cultivars recently developed in Hokkaido carry photoperiod-insensitive alleles at a high frequency. For efficient utilization of Ppd-1 alleles in the Hokkaido wheat-breeding program, the effect of Ppd-1 on growth pattern and grain yield should be investigated. Ppd-A1a may be useful as a unique gene source for fine tuning the heading time in the Tohoku- Kyushu region since the effect of Ppd-A1a on photoperiod insensitivity appears to differ from the effect of Ppd-B1a and Ppd-D1a.

Original languageEnglish
Pages (from-to)309-316
Number of pages8
JournalBreeding Science
Volume63
Issue number3
DOIs
Publication statusPublished - Oct 8 2013

Keywords

  • Heading time
  • Japanese wheat cultivars
  • Photoperiod response gene
  • Ppd-A1
  • Wheat

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Genetics
  • Plant Science

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    Seki, M., Chono, M., Nishimura, T., Sato, M., Yoshimura, Y., Matsunaka, H., Fujita, M., Oda, S., Kubo, K., Kiribuchi-Otobe, C., Kojima, H., Nishida, H., & Kato, K. (2013). Distribution of photoperiod-insensitive allele Ppd-A1a and its effect on heading time in Japanese wheat cultivars. Breeding Science, 63(3), 309-316. https://doi.org/10.1270/jsbbs.63.309