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Constructing an alternative wheat karyotype using barley genomic DNA

Constructing an alternative wheat karyotype using barley genomic DNA The established karyotype was generated by genomic in situ hybridization (GISH) using total barley genomic DNA as labelled probe on mitotic metaphase bread wheat chromosomes. GISH produced specific banding signals on 16 of the 21 chromosome pairs. The following chromosomes showed distinctive banding patterns: 2A, 3A, 4A, 5A, 6A, 7A, 1D, 2D, 7D and all of the B chromosomes. The remaining chromosomes showed either faint bands or no hybridization signals at all. The in situ hybridization patterns corresponded to the GAA–satellite sequence, which is similar to the N-banding pattern in wheat. In situ hybridization by labelling total barley genomic DNA made it possible to identify most of the bread wheat chromosomes. The present paper describes a GISH-banding method for hexaploid wheat chromosomes. It is a valuable alternative method for fast chromosome selection without using FISH repetitive DNA clones. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Applied Genetics Springer Journals

Constructing an alternative wheat karyotype using barley genomic DNA

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References (27)

Publisher
Springer Journals
Copyright
Copyright © 2014 by Institute of Plant Genetics, Polish Academy of Sciences, Poznan
Subject
Life Sciences; Life Sciences, general; Animal Genetics and Genomics; Human Genetics; Microbial Genetics and Genomics; Plant Genetics & Genomics
ISSN
1234-1983
eISSN
2190-3883
DOI
10.1007/s13353-014-0230-0
pmid
25027628
Publisher site
See Article on Publisher Site

Abstract

The established karyotype was generated by genomic in situ hybridization (GISH) using total barley genomic DNA as labelled probe on mitotic metaphase bread wheat chromosomes. GISH produced specific banding signals on 16 of the 21 chromosome pairs. The following chromosomes showed distinctive banding patterns: 2A, 3A, 4A, 5A, 6A, 7A, 1D, 2D, 7D and all of the B chromosomes. The remaining chromosomes showed either faint bands or no hybridization signals at all. The in situ hybridization patterns corresponded to the GAA–satellite sequence, which is similar to the N-banding pattern in wheat. In situ hybridization by labelling total barley genomic DNA made it possible to identify most of the bread wheat chromosomes. The present paper describes a GISH-banding method for hexaploid wheat chromosomes. It is a valuable alternative method for fast chromosome selection without using FISH repetitive DNA clones.

Journal

Journal of Applied GeneticsSpringer Journals

Published: Jul 16, 2014

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