Chromosomes of two species of Japanese fishflies in the genus Parachauliodes (Megaloptera: Corydalidae: Chauliodinae)

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概要

• 論文の詳細を見る

• We analyzed chromosomes of two species of Japanese fishflies (Megaloptera: Corydalidae: Chauliodinae), Parachauliodes continentalis and P. japonicus. The chromosome numbers in both species were 2n=20 consisting of 9 pairs of autosomes plus XX chromosomes in females and Xy in males. The X chromosomes were subtelocentric while the y was the smallest chromosome of the set. The sex chromosomes of first meiotic metaphase (MI) spermatocytes in both species invariably formed bivalents synchronously with the autosomes and formed parachute-type bivalents, suggesting that the species in this genus share a common sex bivalent mechanism.

• 財団法人 染色体学会の論文

著者

• Yamada Takuzo

  Nagoya University Of Art

• Takeuchi Yoshinori

  Bohkai Junior High School

• Iizuka Koji

  Takashima 2nd Junior High School

• Koishi Hiroyuki

  Hosei University Daini Junior High School

• Hoshiba Hidehiro

  Graduate School of agriculture, Tamagawa University

関連論文

• Chromosomes of the Japanese dobsonfly Protohermes grandis(Megaloptera : Corydalidae)
• Chromosomes of two species of Japanese fishflies in the genus Parachauliodes (Megaloptera: Corydalidae: Chauliodinae)
• Chromosomes of two species of Japanese fishflies in the genus Parachauliodes (Megaloptera : Corydalidae : Chauliodinae)

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