Preparation of megabase DNA from adult insects and mammalian spleen for pulsed-field gel electrophoresis

Brahmachari, Vani ; Nagasuma, R. ; Brahmachari, Samir K. (1989) Preparation of megabase DNA from adult insects and mammalian spleen for pulsed-field gel electrophoresis Journal of Genetics, 68 (3). pp. 185-188. ISSN 0022-1333

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Official URL: http://www.ias.ac.in/jarch/jgenet/68/185.pdf

Related URL: http://dx.doi.org/10.1007/BF02927860

Abstract

While standard techniques for obtaining megabase-size DNA from microorganisms and cells in tissue culture are now available, new methods are needed for handling solid tissues and, in the case of small-sized animals, whole organisms. Here we describe a simple and rapid method for preparing large DNA molecules from mammalian spleen, whole insects of Drosophila and Planococcus lilacinus, a mealybug. Briefly the method involves gentle steps for preparing cell suspensions and handling of these cells within agarose blocks for preparing the DNA. In mammals like mice, the spleen, rather than the liver, is the organ of choice because, in the latter, endogenous nuclease activity is high.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Pulsed-field gel electrophoresis; Solid tissue; Megabase DNA; Drosophila; Mealybug
ID Code:6397
Deposited On:20 Oct 2010 10:31
Last Modified:16 May 2016 16:44

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