東京湾中央防波堤処分場(第 3 夢の島)のイエバエの異常な性決定様式と卵巣発育の遅延

概要

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By individual cross of housefly males collected from the dumping ground on the "Third Yumenoshima" area to females of a standard strain (Lab em-7-em) immediately after emergence, it was shown that males with M (male determining) factor in autosomes both in homozygous and in heterozygous states are included in the housefly population of the area. This confirms a recent view that the houseflies with anomalous sex determination (A^MA-type or A^MA^M-type) became remarkable in various locations of Japan, in place of the standard houseflies in which the sex determination is XY^M-type. It was also revealed that the development of follicles in the ovary was greatly delayed in many females of the strain of the housefly originated from the "Third Yumenoshima" area.
1983-09-15