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Title Transcription
ヒナバッタ セイボ サイボウ センショクタイ ニ オケル クロモアメ ブンセキ
Title Alternative (English)
Chromomere Arrangement in Pachytene Bivalents of Grasshopper Spermatocytes, Acrida turrita (Acrididae : Orthoptera)
File
language
eng
Author
Seto, Takeshi
Description
Pachytene chromosomes of grasshopper spermatocyes were observed with squashed-Feulgen stain preparations for an analysis of the chromomere pattern in the bivalents. Eleven bivalents were identifiable in well-spread cells, in consequence the measurements of chromosome length and chromomere count of each chromosome were possible. The examination indicated that the number and pattern of chromomeres varied according as the pachytene stage proceeds. The number of chromomeres was much higher in elongated chromosomes and lower in condensed elements. Therefore the chromomere distribution, measured by the average distance between chromomeres, was a farrly good approximation in respective bivalent. Identical pattern of chromomere arrangement was detected only at advanced stage of pachytene since the contraction of chromosomes and chromomere fusion brought better visualization of the number and disposition.
Journal Title
Memoirs of the Faculty of Education, Shimane University. Natural science
Volume
11
Start Page
19
End Page
24
ISSN
05869943
Published Date
1977-12-25
NCID
AN00107941
Publisher
島根大学教育学部
Publisher Aalternative
The Faculty of Education Shimane University
NII Type
Departmental Bulletin Paper
OAI-PMH Set
Faculty of Education
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