<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

Publié en ligne: 15 juin 2019

Pages: 51 - 54

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

Mots clés
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

Publié en ligne: 15 juin 2019

Pages: 51 - 54

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

Mots clésB-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.

Mots clés
B-chromosomes, gymnosperms, frequency, meiotic pairing, adaptive value