Aix-Marseille Université - MARS herbarium – Cytogenetic data-base

Description

Public short description

Not provided

Public description

Les variations chromosomiques concernent 90% des Ptéridophytes et 50 à 60% des Angiospermes. Il s’agit de processus fondamentaux de différenciation et de spéciation. Sur le plan taxonomique ces variations chromosomiques ont largement contribué à améliorer les classifications tandis que sur le plan évolutif, la compréhension de ces variations a permis de mieux cerner l’origine et l’histoire de certains groupes. Ainsi la base de données MARS-CYTO de l’Université d’Aix-Marseille a pour objectif de mettre à la disposition des chercheurs, via le portail du Gbif, les nombres chromosomiques et les informations relatives aux témoins herbiers, support de ces cytotypes. Cette base concerne essentiellement la flore du Bassin Méditerranéen : flore endémique insulaire, flore de Provence (SE. France), espèces rares et menacées et espèces invasives en France. Elle comporte également quelques monographies.

Chromosomal changes concern 90% of pteridophytes and 50-60% of angiosperms. These are fundamental processes of differentiation and speciation. Concerning taxonomy, these chromosomal variations have contributed significantly to the improvement of classifications, while from an evolutionary standpoint the understanding of these variations has helped us to better identify the origin and history of certain groups. Thus the goal of the MARS-CYTO database of the University of Aix-Marseille, available via the GBIF portal, is to make available to researchers chromosome numbers and related information about plant specimens (herbarium) supporting these cytotypes. This database covers mainly the flora of the Mediterranean Basin: endemic flora of Mediterranean islands, flora of Provence (south-east France), rare and endangered species and invasive species in France. This database also contains several monographs.

Technical description

Not provided

Bounding box (decimal degrees WGS84)

• North: Not provided
• South: Not provided
• East: Not provided
• West: Not provided

Temporal range

• Start date: Not provided
• End date: Not provided

Data quality description

Not provided

Methods description

Not provided

Purpose

Not provided

Data generalisations:

Information withheld:

Content types: point occurrence data, gbif import

Image metadata

These values the default values displayed for any images loaded for this data resource.

Taxonomic range

Data mobilisation

Atlas contributor: no

Status: identified

Provenance:

Last checked: 2020-03-18 20:38:59.0

Data currency: 2016-06-28 02:00:00.0

Harvest frequency: Manual

Mobilisation notes:

Harvesting notes:

Public archive available: no

Connection parameters

Protocol:	DarwinCore archive
Data URLs	http://metadonnees.gbif.fr/upload/1584560388180/0023511-200221144449610-dwca.zip
LocationURL:	file:////data/ala-collectory/upload/1584560388180/0023511-200221144449610-dwca.zip
Automaticallyloaded:	Not supplied
DwCtermsthatuniquely identifyarecord:	gbifID
Stripwhitespacesinkey:	Not supplied
IncrementalLoad:	Not supplied

Default values for DwC fields

georeferenceVerificationStatus:	verified
identificationVerificationStatus:	verified

Citation and rights

Citation: Vila B (2016). Aix-Marseille Université - MARS herbarium – Cytogenetic data-base. Version 5.2. Université d’Aix-Marseille. Occurrence dataset https://doi.org/10.15468/dwvvzd accessed via GBIF.org on 2020-03-18.

Rights:

License type: other

License version:

Permissions document:

Permissions document type: Other

Download limit: no limit

Logo

Representative image

Location

Address	"Institut Méditerranéen de Biodiversité et d'Ecologie (UMR CNRS 7263) Faculté des Sciences Saint-Charles, case 4" Marseille 13331 FR
Postal
Latitude
Longitude
State/Territory/County
Email	bruno.vila@univ-amu.fr
Phone	+33 04.13.55.12.29

Record consumers

These institutions and collections hold specimens related to the records sourced from this data resource.
Adding relationships here allows data processing to correctly attribute records down to the collection using collection codes and institution codes associated with the institution.

Attributions

Taxonomy hints

External Identifiers

• GBIF:4521e9af-e6c4-4f0c-9701-f2cd0c279b32