フキ三倍体と二倍体品種の交雑による実生作出と得られた実生の特性(育種・遺伝資源)  [in Japanese] Production of Hybrid Plants by Crossings between Triploid and Diploid Japanese Butterbur Cultivars and Their Characteristics(Breeding & Germplasm Resources)  [in Japanese]

Abstract

'愛知早生ブキ'などの三倍体品種の雌株に花粉稔性のある群馬県在来'水ブキ'(雄株)を交配し,実生作出の可能性について明らかにした.さらに,'愛知早生ブキ'と群馬県在来'水ブキ'(雄株)との交配により,得られた実生の特性を明らかにした.1.フキの三倍体品種である'愛知早生ブキ',徳島県在来'水ブキ'および'吉備路'の雌株に群馬県在来'水ブキ'(雄株)を交配することにより稔実種子が得られた.'愛知早生ブキ'では採取した種子の2.0%,徳島県在来'水ブギ'と'吉備路'の種子では0.4%の出芽がみられた.2.'愛知早生ブキ'と群馬県在来'水ブキ'(雄株)の交配により得られた実生は,交配親に比べて,葉柄の生育が旺盛なものや葉柄部にアントシアニンの発生が無いものがみられた.3.フローサイトメトリーによる相対的核DNA量の測定から'愛知早生ブキ'と群馬県在来'水ブキ'(雄株)の交配により得られた実生について倍数性を推定すると,'AM-35'は二倍体,'AM-1'と'AM-51'は異数体と考えられた.4.'愛知早生ブキ'と群馬県在来'水ブキ'(雄株)の交配により得られた実生から選抜した'AM-1'は,早生性で葉柄部のアントシアニンの発生は少なく,収量も多いことから,育種目標に適した有望な系統であった.この組み合わせ交配から得られた実生個体の選抜により,新たな葉柄収穫用品種が育成できる可能性があると考えられた.

Crossings between triploid and diploid in cultivated Japanese butterbur (Petasites japonicus Fr. Schmidt) were made and the agronomic traits of hybrid plants for harvesting petioles were investigated. As a result hybrid plants from the crosses of 'Aichiwasebuki' (triploid)×'Mizubuki' (diploid, native cultivar of Gunma pref.), 'Mizubuki' (triploid, native cultivar of Tokushima pref.)×'Mizubuki' (Gunma) and 'Kibiji' (triploid)×'Mizubuki' (Gunma) were obtained. Some hybrid plants from 'Aichiwasebuki'×'Mizubuki' (Gunma) grew more vigorously than their parents. Among hybrid plants, there were several hybrids that did not develop anthocyanin pigments at petioles. By flow cytometry, the hybrid plant 'AM-35' was estimated as diploid, and 'AM-1' and 'AM-51' as aneuploid. 'AM-1' showed early maturing, high petiole yield, and less anthocyanin pigments at the petioles compared with 'Aichiwasebuki'. Therefore, there is a possibility of selecting a new cultivar for harvesting petioles from hybrid plants of 'Aichiwasebuki' (triploid) and 'Mizubuki' (diploid, Gunma).

Journal

Horticultural research (Japan)   [List of Volumes]

Horticultural research (Japan) 7(1), 11-16, 2008-01-15  [Table of Contents]

The Japanese Society for Horticultural Science

References:  20

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Codes

  • NII Article ID (NAID) :
    110006546977
  • NII NACSIS-CAT ID (NCID) :
    AA11608561
  • Text Lang :
    JPN
  • Article Type :
    ART
  • ISSN :
    13472658
  • NDL Article ID :
    9348048
  • NDL Source Classification :
    ZR7(科学技術--農林水産--農産)
  • NDL Call No. :
    Z74-C757
  • Databases :
    CJP  NDL  NII-ELS  IR 

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