Construction and characterization of a porcine P1-derived artificial chromosome (PAC) library covering 3.2 genome equivalents and cytogenetical assignment of six type I and type II loci

Construction and characterization of a porcine P1-derived artificial chromosome (PAC) library... A porcine P1-derived artificial chromosome (PAC) library of a male German Landrace pig was constructed in pCYPAC2. In total 90,240 clones were generated and individually transferred into microtiter plates. An average insert size of 119.1 kb was determined by analyzing 150 randomly selected PAC clones by pulsed field electrophoresis, yielding approximately 3.2 genome equivalents. The stability of nine clones was followed through 110 generations showing no reduction of the insert size. The probability of identifying a specific chromosomal region within the library was tested by screening for the presence of seven type I and five type II loci. The analysis showed that most loci (10/12) were present in the library at least twice. To determine the percentage of chimerism, six clones were analyzed by fluorescence in situ hybridization (FISH) on metaphase chromosomes. We assign one type I locus (Triadin) and three type II loci (SW855, S0300, SW1129). http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Mammalian Genome Springer Journals

Construction and characterization of a porcine P1-derived artificial chromosome (PAC) library covering 3.2 genome equivalents and cytogenetical assignment of six type I and type II loci

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Publisher
Springer-Verlag
Copyright
Copyright © 1999 by Springer-Verlag New York Inc.
Subject
Life Sciences; Cell Biology; Anatomy; Zoology
ISSN
0938-8990
eISSN
1432-1777
D.O.I.
10.1007/s003359901046
Publisher site
See Article on Publisher Site

Abstract

A porcine P1-derived artificial chromosome (PAC) library of a male German Landrace pig was constructed in pCYPAC2. In total 90,240 clones were generated and individually transferred into microtiter plates. An average insert size of 119.1 kb was determined by analyzing 150 randomly selected PAC clones by pulsed field electrophoresis, yielding approximately 3.2 genome equivalents. The stability of nine clones was followed through 110 generations showing no reduction of the insert size. The probability of identifying a specific chromosomal region within the library was tested by screening for the presence of seven type I and five type II loci. The analysis showed that most loci (10/12) were present in the library at least twice. To determine the percentage of chimerism, six clones were analyzed by fluorescence in situ hybridization (FISH) on metaphase chromosomes. We assign one type I locus (Triadin) and three type II loci (SW855, S0300, SW1129).

Journal

Mammalian GenomeSpringer Journals

Published: Mar 11, 2014

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