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Embryology and Cytology of Bursaphelenchus xylophilus

  • Koichi Hasegawa
  • Johji Miwa

Abstract

Because of their small size, availability, simple and transparent body, and reproducible development nematodes have been popular organisms for studying animal development since the nineteenth century. The many important events in embryogenesis, such as fertilization, meiosis, pronuclear meeting, and chromosome-based sex-determination were discovered as the result of observations of the horse roundworm Parascaris equorum (Ascaris megalocephala) embryo, and the concepts of individuality and physical continuity of the chromosomes were established and generalized as biological phenomena by nineteenth century nematologists (Triantaphyllou 1971). A variety of chromosome numbers, reproduction modes, and early developmental patterns have been discovered and studied in both parasitic and free-living nematodes.

Keywords

Polar Body Pine Wood Nematode Female Germ Cell Male Pronucleus Female Pronucleus 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer 2008

Authors and Affiliations

  • Koichi Hasegawa
    • 1
    • 2
  • Johji Miwa
    • 1
    • 3
  1. 1.Institute for Biological FunctionChubu UniversityKasugaiJapan
  2. 2.Laboratory of Environmental Mycoscience, Graduate School of AgricultureKyoto UniversityKyotoJapan
  3. 3.Graduate School of Bioscience and BiotechnologyChubu UniversityKasugaiJapan

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