Dimorphism of Leaf Galls Induced by Pseudasphondylia neolitseae (Diptera: Cecidomyiidae) on Neolitsea sericea (Lauraceae) and Their Distributional Patterns in Kyushu, Japan

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  • シロダモタマバエ(双翅目:タマバエ科)によってシロダモ(クスノキ科)の葉に形成されるゴール2型と九州におけるそれらの地理的分布様式

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Description

Pseudasphondylia neolitseae (Diptera: Cecidomyiidae) induces two different types of gall (upper and lower types) on the leaves of Neolitsea sericea (Lauraceae). In the upper type, the adaxial side of the gall projects more prominently than the abaxial side, and vice versa in the lower type. The lower type galls were found mainly in northwestern and northern Kyushu, while the upper type were found mainly in southwestern and southern Kyushu and their distributional patterns were parapatric with a little overlapping. The coexistence of both types on a single host tree was relatively rare. Whenever they coexisted on a single tree, they always appeared together on the same leaf, although the relative abundance of one type to another was biased toward one side. The ploidy level of host plants was not related to the gall types, because almost all host trees examined were diploid. Therefore, the gall types are not determined by the differentiation of ploidy level of host plant, and possibly determined by the gall midge. The parapatric distribution pattern of the two gall types may suggest that P. neolitseae is now entering into the initial stage of speciation, if gall dimorphism leads to reproductive isolation.

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Details 詳細情報について

  • CRID
    1390009224836105344
  • NII Article ID
    110006607400
  • NII Book ID
    AA11909273
  • DOI
    10.15017/10286
  • HANDLE
    2324/10286
  • Text Lang
    en
  • Data Source
    • JaLC
    • IRDB
    • CiNii Articles
  • Abstract License Flag
    Allowed

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