A repetitive DNA sequence common to the different B chromosomes of the genus Brachycome

Chromosoma
A HoubenJ N Timmis

Abstract

Dot-like micro B chromosomes of Brachycome dichromosomatica were analysed for their sequence composition. Southern hybridization patterns of a total micro B probe to genomic DNA from plants with and without micro Bs demonstrated that the micro Bs shared sequences with the A chromosomes. In addition to telomere, rDNA and common A and B chromosome sequences, a new B-specific, highly methylated tandem repeat (Bdm29) was detected. After in situ hybridization with Bdm29 the entire micro B chromosome was labelled and clustering of the condensed micro Bs could be observed at interphase. A high number of Bdm29-like sequences were also found in the larger B chromosomes of B. dichromosomatica and in other Bs within the genus Brachycome.

Citations

May 7, 2009·Molecular Genetics and Genomics : MGG·Kuan-lin LoBor-yaw Lin
Sep 19, 2003·Trends in Plant Science·Neil Jones, Andreas Houben
Aug 6, 2013·Cellular and Molecular Life Sciences : CMLS·Andreas HoubenJeremy N Timmis
Dec 20, 2007·The Plant Journal : for Cell and Molecular Biology·Sarit CohenDaniel Segal
Jan 12, 2016·Comparative Cytogenetics·Patricia Elda Sobrinho ScudelerFausto Foresti
Nov 29, 2014·Genome Génome / Conseil National De Recherches Canada·Chuanliang DengZanmin Hu
Apr 11, 2002·Cell Research·Zhong Xia QiRui Yang Chen
Mar 21, 2000·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·J P CamachoL W Beukeboom
Oct 27, 2018·Genes·André MarquesAndreas Houben
Mar 13, 2003·The Plant Journal : for Cell and Molecular Biology·Andreas HoubenIngo Schubert

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