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Studies on the Chromosomes of Orthotera in Korea (2)

한국동물학회지 1959년 2권 2호 p.15 ~ 24
강영선, 손홍종,
소속 상세정보
강영선 ( Kang Yung-Sun ) - 서울대학교 동물학과
손홍종 ( Son Hong-Chong ) - 서울대학교 동물학과

Abstract


Concluding the result of this observation, authors obtained the table showing chromosome numbers which are consisted in each species as follow. Viewing on this result, authors recognized Acrididae are determined the sex with X-O type. 6 species of Family Acrididae and one species of Family Gryllotalpidae (on above table) had already calculated the number of chromosomes by some foreign observers. But another one species (Briodema tuberculatum dilatum STOLL) clarified by authors firstly in this observation. In 2nd spermatocyte of Trilophidia annulata YHUMBERG 1 to 3 Ist constriction satellites were observed, and each of the small bodies was connected with thin fibre and constituted with same or less breadth as the main chromosomes. If those are not the satellites, they should be the super-numerary chromosomes appearing a dot form. In this observation, among 48 species of Family Acrididae which have been found in Korea 18 species were calculated their chromosome numbers which were including 1 species calculated by authors newly. And authors have reobserved the chromosomes of Gryllotalpa africana PALISOT de BEUVOIS of Family Gryllotalpidae which was done by Japanese before.

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