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Genetic similarity of natural populations and plantations of Pinus roxburghii Sarg. in Nepal / Archana Gauli in Annals of Forest Science, Vol 66 n° 7 (October - November 2009)  

Public [article]  inAnnals of Forest Science > Vol 66 n° 7 (October - November 2009) . - n° 703 Titre : Genetic similarity of natural populations and plantations of Pinus roxburghii Sarg. in Nepal Titre original : Similitude génétique des populations naturelles et des plantations de Pinus roxburghii Sarg. au Népal Type de document : Article/Communication Auteurs : Archana Gauli, Auteur ; Oliver Gailing, Auteur ; Valdir Marcos Stefenon, Auteur ; Reiner Finkeldey, Auteur Année de publication : 2009 Article en page(s) : n° 703 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes descripteurs IGN] génétique forestière [Termes descripteurs IGN] Népal [Termes descripteurs IGN] Pinus roxburghii [Termes IFN] différenciation génétique [Termes IFN] diversité génétique [Termes IFN] matériel forestier de reproduction [Termes IFN] microsatellite (génétique) [Vedettes matières IGN] Sylviculture Résumé : (Editeur) Genetic structures of five population pairs each consisting of one natural population and one neighbouring plantation of Pinus roxburghii Sarg. in Nepal were assessed using nuclear (nSSRs) and chloroplast microsatellite loci (cpSSRs). The mean number of alleles at nSSRs loci in natural populations was 5.0 compared to 4.93 in plantations while the average observed heterozygosities were the same in both groups (H0 = 0.50). Most of the alleles were common to all the populations, indicating that the populations correspond to a single genetic entity. Similarly forty-seven haplotypes were observed in natural populations compared to fifty haplotypes in plantations. Mean haplotype diversities of natural populations (0.953) and plantations (0.955) were very similar. Genetic diversity of Pinus roxburghii was relatively high with low or no evidence of inbreeding while genetic differentiation among all populations was very low (about 1%). The very low differentiation among natural populations indicates efficient long- distance gene flow among populations resulting in homogeneous genetic structures at least at selectively neutral loci. Even though the harvest and production of seeds and seedlings was largely uncontrolled, genetic structures of most plantations show no signs of reduced variation, inbreeding or other negative effects compromising the adaptedness or adaptability of planted forests. Numéro de notice : A2009-624 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1051/forest/2009053 date de publication en ligne : 02/10/2009 En ligne : https://doi.org/10.1051/forest/2009053 Format de la ressource électronique : url article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=72827 [article]

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Code-barres	Cote	Support	Localisation	Section	Disponibilité
IFN-001-P000668	PER	Revue	Nogent-sur-Vernisson	Salle périodiques	Exclu du prêt