GENOME SIZE AND ORGANIZATION IN AN APHID (SCHIZAPHIS-GRAMINUM)

被引：7

作者：

MA, RZ ^{[1
]}

BLACK, WC ^{[1
]}

REESE, JC ^{[1
]}

机构：

[1] KANSAS STATE UNIV AGR & APPL SCI, DEPT ENTOMOL, MANHATTAN, KS 66506 USA

来源：

JOURNAL OF INSECT PHYSIOLOGY | 1992年 / 38卷 / 03期

关键词：

GENOME ORGANIZATION; APHIDS; REPETITIVE DNA;

D O I：

10.1016/0022-1910(92)90064-K

中图分类号：

Q96 [昆虫学];

学科分类号：

摘要：

There is currently no information on genome organization in any paurometabolous insect. DNA reassociation kinetics were used to determine genome size and organization in the greenbug (Schizaphis graminum, Rondani). A genome size of 0.40 pg (387 x 10(6) base pairs) was estimated consisting of 2.4% fold-back sequences, 19.64% middle repetitive sequences and 77.96% unique sequences. The repetitive sequences were distributed in a pattern of long period interspersion. In contrast with species with genome sizes equivalent or smaller in size, the greenbug has very little highly repetitive DNA.

引用

页码：161 / 165

页数：5

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