Dennhöfer Leonore
Institut für Entwicklungsphysiologie der Universität zu Köln, Gyrhofstraße 17, 5000, Köln 41 (Lindenthal), Germany.
Wilehm Roux Arch Dev Biol. 1981 Jul;190(4):237-240. doi: 10.1007/BF00848310.
Combined cytophotometric and autoradiographic experiments are performed on individual polytene salivary gland nuclei of X/X-female and X/Y-male larvae ofDrosophila melanogaster, DNA measurements of unlabeled nuclei reveal complete douplings of all 4C DNA quantity during polytenization. These new data do not agree with the hypothesis of heterochromatic underreplication.
对黑腹果蝇X/X雌性和X/Y雄性幼虫的单个多线唾液腺细胞核进行了细胞光度测定和放射自显影联合实验。未标记细胞核的DNA测量结果显示,在多线化过程中,所有4C DNA量都完全加倍。这些新数据与异染色质复制不足的假说不一致。