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Abstract Detail



Systematics

Marhold, Karol [1], Kempa, Matúš [1], Salmerón-Sánchez, Esteban [2], Fuertes-Aguilar, Javier [3], Mota, Juan Francisco [2], Al-Shehbaz, Ihsan A. [4], German, Dmitry A. [5], Olšavská, Katarí­na [1], Šingliarová, Barbora [1], Zozomová-Lihová, Judita [1], Španiel, Stanislav [1].

AlyBase - database of names, chromosome numbers and ploidy levels of the tribe Alysseae.

The Brassicaceae family is well known for the common occurrence of polyploids and considerable variation in chromosome numbers. It appears that chromosome and ploidy variation is substantial also in its third largest tribe Alysseae. However, the origin of polyploids and various base chromosome numbers in the Alysseae, as well as their evolutionary significance, have not yet been sufficiently understood. To address these questions, a detailed summary of the current knowledge on karyological variation of the tribe across all genera and the whole distribution area is an essential starting point. For this purpose, chromosome number and ploidy-level database is the most convenient information tool. Therefore, we presented to a scientific public a research platform for Alysseae taxa consisting of the database of published chromosome number/ploidy-level data. This database (AlyBase) is available on-line at www.alysseae.sav.sk. The tribe Alysseae encompasses 24 genera and 277 species. The AlyBase covers currently available chromosome numbers and/or ploidy levels for 171 out of 297 recognized taxa. Of these, 95 (55.6%) taxa are diploids, 43 (25.1%) are polyploids, and 33 (19.3%) involve both diploids and polyploids. The most common base chromosome number in the tribe is x = 8 and less frequent is x = 7. The highest variation in base chromosome numbers (x = 7, 8, 11, 15) is found in the genus Hormathophylla. Importantly, in AlyBase presented names and combinations of Alysseae taxa reflect the revised generic concept and the current state of knowledge. AlyBase provides also complete information on the origin of analysed material, voucher specimens and revision of the identification of plant material according to the collection place or voucher specimens (if available). Furthermore, it is possible to display respective records on a map.


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Related Links:
AlyBase web page


1 - Institute of Botany, Slovak Academy of Sciences, Dúbravská cesta 9, Bratislava, SK-845 23, Slovakia
2 - Universidad de Almerí­a, Departamento de Biologí­a y Geologí­a, Carretera de Sacramento s/n, La Cañada de San Urbano, Almerí­a, E-04120 , Spain
3 - Real Jardí­n BotÁnico, CSIC, Plaza de Murillo 2, Madrid, E-28014 , Spain
4 - Missouri Botanical Garden, P.O. Box 299, St. Louis, MO, 63166-0299, USA
5 - Heidelberg University, Centre for Organismal Studies, Im Neuenheimer Feld 345, Heidelberg, D-69120, Germany

Keywords:
Brassicaceae
Cruciferae
Nomenclature
taxonomy
chromosome numbers
ploidy levels.

Presentation Type: Poster
Session: P, Systematics Section/ASPT Posters
Location: Exhibit Hall/Savannah International Trade and Convention Center
Date: Monday, August 1st, 2016
Time: 5:30 PM This poster will be presented at 5:30 pm. The Poster Session runs from 5:30 pm to 7:00 pm. Posters with odd poster numbers are presented at 5:30 pm, and posters with even poster numbers are presented at 6:15 pm.
Number: PSY037
Abstract ID:462
Candidate for Awards:None


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