Allozyme characterisation of four Mediterranean evergreen oak species
Identifieur interne : 000A56 ( Main/Exploration ); précédent : 000A55; suivant : 000A57Allozyme characterisation of four Mediterranean evergreen oak species
Auteurs : Lamjed Toumi [France] ; Roselyne Lumaret [France]Source :
- Biochemical Systematics and Ecology [ 0305-1978 ] ; 2001.
Abstract
Polymorphism at 11 enzyme loci was used to compare the four evergreen oak species of the Mediterranean Basin and to establish their taxonomical relationships. As a comparison, two evergreen oak species from Tibet, located in the primary distribution area of evergreen oaks, were analysed at the same loci. Cladistic analyses led to the separation of a cluster of four species, namely the three Mediterranean Q. ilex, Q. coccifera and Q. alnifolia and the Tibetan Q. aquifolioides. The other Tibetan species, Q. semicarpifolia, and Q. suber, from the Western Mediterranean Basin, were very distinct genetically from the four other species. These results were not consistent with previous taxonomical treatment, based on morphology alone, which classified Q. ilex and Q. coccifera in “ilex group” (=subgenus Sclerophyllodrys O. Schwartz), and the other four species in “cerris group” (subgenus Cerris, according to Schwartz). Allozyme variation has thus provided useful information to clarify the taxonomy of evergreen oaks.
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DOI: 10.1016/S0305-1978(01)00024-2
Affiliations:
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As a comparison, two evergreen oak species from Tibet, located in the primary distribution area of evergreen oaks, were analysed at the same loci. Cladistic analyses led to the separation of a cluster of four species, namely the three Mediterranean Q. ilex, Q. coccifera and Q. alnifolia and the Tibetan Q. aquifolioides. The other Tibetan species, Q. semicarpifolia, and Q. suber, from the Western Mediterranean Basin, were very distinct genetically from the four other species. These results were not consistent with previous taxonomical treatment, based on morphology alone, which classified Q. ilex and Q. coccifera in “ilex group” (=subgenus Sclerophyllodrys O. Schwartz), and the other four species in “cerris group” (subgenus Cerris, according to Schwartz). Allozyme variation has thus provided useful information to clarify the taxonomy of evergreen oaks.</div></front></TEI><affiliations><list><country><li>France</li></country><region><li>Languedoc-Roussillon</li><li>Occitanie (région administrative)</li></region><settlement><li>Montpellier</li></settlement></list><tree><country name="France"><region name="Occitanie (région administrative)"><name sortKey="Toumi, Lamjed" sort="Toumi, Lamjed" uniqKey="Toumi L" first="Lamjed" last="Toumi">Lamjed Toumi</name></region><name sortKey="Lumaret, Roselyne" sort="Lumaret, Roselyne" uniqKey="Lumaret R" first="Roselyne" last="Lumaret">Roselyne Lumaret</name><name sortKey="Lumaret, Roselyne" sort="Lumaret, Roselyne" uniqKey="Lumaret R" first="Roselyne" last="Lumaret">Roselyne Lumaret</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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