<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Gandour, M.</style></author><author><style face="normal" font="default" size="100%">Khouja, M. L.</style></author><author><style face="normal" font="default" size="100%">Toumi, L.</style></author><author><style face="normal" font="default" size="100%">Triki, S.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Morphological evaluation of cork oak (Quercus suber): Mediterranean provenance variability in Tunisia</style></title><secondary-title><style face="normal" font="default" size="100%">Annals of forest science</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">aforestation</style></keyword><keyword><style  face="normal" font="default" size="100%">Genetic variability</style></keyword><keyword><style  face="normal" font="default" size="100%">Mediterranean plants</style></keyword><keyword><style  face="normal" font="default" size="100%">Quercus suber</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2007</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2007///</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.springerlink.com/index/J2683376424295H6.pdf</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">64</style></volume><pages><style face="normal" font="default" size="100%">549 - 555</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Twenty-six provenances (2 340 plants) of cork oak (Quercus suber spp.) originating from Portugal, Spain, Italy, Morocco, Algeria, and Tunisia were tested for genetic variation among and within provenances by growth traits. Seven morphometrical characters were measured in 90 plants from each provenance. Analysis of variance showed highly signiﬁcant diﬀerences for all characters. The phenotypic coeﬃcient of diﬀerentiation reached 0.24 for the form and 0.22 for height, thus revealing a strong structuring between the provenances. Comparative study of growth among the provenances revealed more vigorous growth and better survival rate for those from Morocco, Spain, and Portugal, which may constitute better materials for aﬀorestation. Furthermore, this variability appeared to be geographically structured and would be mainly genetically controlled, as cork oak provenances were cultivated under the same environmental conditions. Our results should be helpful for guide forest managers in aﬀorestation.</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Michaud, H.</style></author><author><style face="normal" font="default" size="100%">Toumi, L.</style></author><author><style face="normal" font="default" size="100%">Lumaret, R.</style></author><author><style face="normal" font="default" size="100%">Li, T. X.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Effect of geographical discontinuity on genetic variation in Quercus ilex L.(holm oak). Evidence from enzyme polymorphism</style></title><secondary-title><style face="normal" font="default" size="100%">Heredity</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">allozyme differentiation</style></keyword><keyword><style  face="normal" font="default" size="100%">long-term isolation</style></keyword><keyword><style  face="normal" font="default" size="100%">Quercus ilex</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1995</style></year><pub-dates><date><style  face="normal" font="default" size="100%">1995///</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://cat.inist.fr/?aModele=afficheN&amp;cpsidt=3567366</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">74</style></volume><pages><style face="normal" font="default" size="100%">590 - 606</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Allozymes at a maximum of eight loci were used to analyse the spatial patterns of genetic variation in 1942 hoim oak trees (Quercus ilex L.) from 57 provenances distributed in the six main disjunct areas of the species distribution area. Polymorphism and genetic diversity were high except in the six marginal populations growing in various locations under unfavourable climatic conditions. Ten per cent of the total genetic diversity (H =0.262) was accounted for by among-population variation. In this long-lived species, the effect of geographical discontinuities on gene flow restriction was shown by the occurrence of: (i) numerous rare alleles limited to a single disjunct region; and (ii) allele frequency variation among the disjunct regions for four alleles. This result was obtained by comparing spatial autocorrelograms from the 57 populations of the entire distribution area and from the 31 populations of the Mediterranean continental region which constitutes the largest continuous area in that distribution. Life history traits (e.g. long life span and high outcrossing rate) and past changes in climate and geographical continuity are assumed to be the main factors responsible for the present genetic variation patterns observed in the species.</style></abstract><issue><style face="normal" font="default" size="100%">July 1994</style></issue></record></records></xml>