Genetic Management of Seed Orchards Based on Information Revealed by Molecular Markers.

• Moriguchi Y.

  Department of Forest Genetics, Forestry and Forest Products Research Institute

• Goto S.

  University Forest in Hokkaido, Graduate School of Agricultural and Life Sciences, The University of Tokyo

• Takahashi M.

  Forest Tree Breeding Center

Bibliographic Information

Other Title

• 分子マーカー情報に基づく採種園の遺伝的管理
• ブンシ マーカー ジョウホウ ニ モトヅク サイシュエン ノ イデンテキ カンリ

Abstract

High resolution molecular markers allow precise identification of clones and give information on diverse variables such as levels of pollen contamination, self-fertilization, and the genetic contributions of constituent clones as pollen donors. The use of such markers in seed orchard studies has accumulatively provided new insights, which could not be obtained by conventional methods, revealing that small percentages of mislabeling or misplanting occur in most seed orchards, and levels of self-fertilization are generally low (<5%), but often more than 30% of pollen comes from external sources. Furthermore, the genetic contribution of specific orchard clones as pollen donors often severely deviates from the genetic contribu-tion expected under panmixia. To obtain the maximum potential genetic gain, the following measures should be carefully applied: 1) to prevent errors in clone management, the identity of every ramet should be reconfirmed using molecular markers, and mislabeled clones should be removed, 2) to minimize pollen contamination, seed orchards should be established apart from conspecific forests, and the proportion of orchard pollen in the pollen cloud should be maximized by pollen management measures such as flowering promotion or supplemental mass pollination (SMP) treatments, 3) to reduce self-fertilization, the number of ramets of each clone should be reduced, 4) to promote panmictic mating, the male fecundity of orchard clones should be equalized, and extremely early-or late-flowering clones that do not match the flowering phenology of other clones should be removed.

Journal

• Journal of the Japanese Forest Society

  Journal of the Japanese Forest Society 87 (2), 161-169, 2005

  THE JAPANESE FORESTRY SOCIETY

Keywords

• genetic contribution
• genetic management
• molecular marker
• pollen contamination
• seed orchard

Details

• CRID: 1390282680204243200
• NII Article ID: 130003580614
• NII Article ID: 110002975578
• NII Book ID: AA12003078
• DOI: 10.4005/jjfs.87.161
• ISSN: 1882398X
• ISSN: 13498509
• NDL BIB ID: 7332637
• Web Site: http://id.ndl.go.jp/bib/7332637
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7332637
• Web Site: http://www.jstage.jst.go.jp/article/jjfs2005/87/2/87_2_161/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed