<abstract xmlns="http://www.w3.org/1999/xhtml"><p>B-chromosomes show a non-random distribution in different taxa of gymnosperms. They are generally smaller and show similar centromeric position as the normal complement and are heterochromatic in nature and may show DAPI or CMA banding. They are generally devoid of any gene content, do not pair at meiosis and show accumulation through female line. They show incremental effect on genome size and some adaptive value in particular ecological conditions.</p></abstract>

B-chromosomes show a non-random distribution in different taxa of gymnosperms. They are generally smaller and show similar centromeric position as the normal complement and are heterochromatic in nature and may show DAPI or CMA banding. They are generally devoid of any gene content, do not pair at meiosis and show accumulation through female line. They show incremental effect on genome size and some adaptive value in particular ecological conditions.

B-Chromosomes in Gymnosperms

Silvae Genetica

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"B-Chromosomes in Gymnosperms"}

B-chromosomes show a non-random distribution in different taxa of gymnosperms. They are generally smaller and show similar centromeric position as the normal...

B-Chromosomes in Gymnosperms

Published Online: Jun 15, 2019

Page range: 51 - 54

DOI: https://doi.org/10.2478/sg-2019-0009

Keywords
B-chromosomes, gymnosperms, frequency, meiotic pairing, adaptive value

© 2019 S. Rastogi et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

B-Chromosomes in Gymnosperms

Published Online: Jun 15, 2019

Page range: 51 - 54

DOI: https://doi.org/10.2478/sg-2019-0009

KeywordsB-chromosomes, gymnosperms, frequency, meiotic pairing, adaptive value

© 2019 S. Rastogi et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
B-chromosomes, gymnosperms, frequency, meiotic pairing, adaptive value