Identification of the Parental Species of a Putative Hybrid Spruce<i> Picea × notha </i>Using DNA Markers with Contrasting Modes of Inheritance

DOI
  • Aizawa Mineaki
    Department of Forest Science, Faculty of Agriculture, Utsunomiya University
  • Iwaizumi Masakazu G.
    Kansai Regional Breeding Office, Forest Tree Breeding Center, Forestry and Forest Products Research Institute
  • Yoshimaru Hiroshi
    Department of Forest Molecular Genetics and Biotechnology, Forestry and Forest Products Research Institute
  • Goto Susumu
    Education and Research Center, The University of Tokyo Forests, Graduate School of Agricultural and Life Sciences, The University of Tokyo

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Description

Picea × notha, described by Rehder in 1939, is thought to be a putative hybrid between pollen receptive P. glehnii and pollen donating P. jezoensis var. hondoensis; however, such hybrid is questionable because the distributions of P. glehnii and P. jezoensis var. hondoensis do not overlap naturally. Recently, a natural hybrid between P. glehnii and P. jezoensis var. jezoensis, which is morphologically similar to P. × notha, was genetically determined. Therefore, the goal of this study was to identify the parental species of P. × notha using maternally inherited mitochondrial (mt), paternally inherited chloroplast (cp), and biparentally inherited nuclear (n) DNA markers and to elucidate the similarity of P. × notha and natural hybrids occurring in Hokkaido. Genetic analyses indicated that P. × notha harbored P. glehnii mtDNA, P. jezoensis var. jezoensis or P. jezoensis var. hondoensis cpDNA, and P. glehnii and P. jezoensis var. jezoensis nDNA almost equally. This clearly indicated that P. × notha is an F1 hybrid between pollen receptive P. glehnii and pollen donating P. jezoensis var. jezoensis and that it is similar to natural hybrids found in Hokkaido. This is the first report to demonstrate the parental species of P. × notha and its natural distribution in Hokkaido, Japan.

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Details 詳細情報について

  • CRID
    1390282680246147456
  • NII Article ID
    130006415684
  • DOI
    10.18942/apg.201712
  • ISSN
    21897042
    13467565
  • Text Lang
    en
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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