↓ Skip to main content

Karyotype analysis in Bignonieae (Bignoniaceae): chromosome numbers and heterochromatin

Overview of attention for article published in Anais da Academia Brasileira de Ciências, December 2017
Altmetric Badge

Mentioned by

twitter
2 tweeters
facebook
1 Facebook page

Citations

dimensions_citation
6 Dimensions

Readers on

mendeley
15 Mendeley
You are seeing a free-to-access but limited selection of the activity Altmetric has collected about this research output. Click here to find out more.
Title
Karyotype analysis in Bignonieae (Bignoniaceae): chromosome numbers and heterochromatin
Published in
Anais da Academia Brasileira de Ciências, December 2017
DOI 10.1590/0001-3765201720170363
Pubmed ID
Authors

JOEL M.P. CORDEIRO, MIRIAM KAEHLER, GUSTAVO SOUZA, LEONARDO P. FELIX

Abstract

Chromosome numbers and heterochromatin banding pattern variability have been shown to be useful for taxonomic and evolutionary studies of different plant taxa. Bignonieae is the largest tribe of Bignoniaceae, composed mostly by woody climber species whose taxonomies are quite complicated. We reviewed and added new data concerning chromosome numbers in Bignonieae and performed the first analyses of heterochromatin banding patterns in that tribe based on the fluorochromes chromomycin A3 (CMA) and 4'-6-diamidino-2-phenylindole (DAPI). We confirmed the predominant diploid number 2n = 40, as well as variations reported in the literature (dysploidy in Mansoa [2n = 38] and polyploidy in Dolichandra ungis-cati [2n = 80] and Pyrostegia venusta [2n = 80]). We also found a new cytotype for the genus Anemopaegma (Anemopaegma citrinum, 2n = 60) and provide the first chromosome counts for five species (Adenocalymma divaricatum, Amphilophium scabriusculum, Fridericia limae, F. subverticillata, and Xylophragma myrianthum). Heterochromatin analyses revealed only GC-rich regions, with six different arrangements of those bands. The A-type (one large and distal telomeric band) were the most common, although the presence and combinations of the other types appear to be the most promising for taxonomic studies.

Twitter Demographics

The data shown below were collected from the profiles of 2 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 15 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 15 100%

Demographic breakdown

Readers by professional status Count As %
Student > Doctoral Student 3 20%
Student > Master 2 13%
Student > Postgraduate 2 13%
Student > Bachelor 2 13%
Professor 1 7%
Other 3 20%
Unknown 2 13%
Readers by discipline Count As %
Agricultural and Biological Sciences 7 47%
Biochemistry, Genetics and Molecular Biology 3 20%
Medicine and Dentistry 2 13%
Computer Science 1 7%
Unknown 2 13%