Cookies Policy
X

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

RAPD differentiation between Borderea pyrenaica and B. chouardii (Dioscoreaceae), two relict endangered taxa

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

Access this article

+ Tax (if applicable)
Add to Favorites
You must be logged in to use this functionality

image of Israel Journal of Plant Sciences

As currently circumscribed, the genus Borderea Mieg. comprises two narrowly distributed European taxa, Borderea pyrenaica (Bub.) Mieg. and B. chouardii (Gaussen) Heslot. An accumulation of facts such as that both species share a very close overall morphology, that only a single population of Borderea chouardii is known, and that they live in contrasting environments has led some authors to suggest that B. chouardii is a mere ecotype of the more widespread B. pyrenaica. We tested this hypothesis using RAPD markers in four populations of Borderea, three of them identified as B. pyrenaica and the other one representing the only known population of B. chouardii. Eleven out of twenty assayed primers yielded consistent and reproducible polymorphims between accessions. Overall, 145 reproducible bands were scored, 116 of which (80.0%) were variable between samples. Mean similarity values within Borderea pyrenaica populations were lower (0.78) than those obtained for B. chouardii (0.94); pairwise similarities among B. pyrenaica populations were practically identical (0.73). A low similarity value (0.31) was obtained when comparing Borderea chouardii to each of the three populations of B. pyrenaica. The number of taxon-specific RAPD bands that distinguish both taxa was high (34); all of them were present in Borderea chouardii and absent in B. pyrenaica. Furthermore, another 13 polymorphic marker bands discriminated the two entities; 10 of them were only present in B. pyrenaica, whereas the other 3 were exclusively in B. chouardii. Multivariate analysis showed a strong taxonomic signal in the data set, irrespective of the number of RAPD markers used or the number of plants analyzed. These results strongly suggest that (i) Borderea chouardii is not an ecotype of B. pyrenaica and that both taxa should be granted the specific level, and (ii) B. chouardii is not a recent derivative of B. pyrenaica.

Affiliations: 1: Centre de Recerca Ecològica i Aplicacions Forestals (CREAF), Universitat Autònoma de Barcelona ; 2: Jardi Botànic de la Universitat de València rossello@uv.es

10.1560/3DM5-RVGT-VHKD-D5JA
/content/journals/10.1560/3dm5-rvgt-vhkd-d5ja
dcterms_title,pub_keyword,dcterms_description,pub_author
10
5
Loading
Loading

Full text loading...

/content/journals/10.1560/3dm5-rvgt-vhkd-d5ja
Loading

Data & Media loading...

http://brill.metastore.ingenta.com/content/journals/10.1560/3dm5-rvgt-vhkd-d5ja
Loading

Article metrics loading...

/content/journals/10.1560/3dm5-rvgt-vhkd-d5ja
2001-05-13
2018-09-26

Sign-in

Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Subscribe to ToC alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Your details
    Why are you recommending this title?
    Select reason:
     
    Israel Journal of Plant Sciences — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation