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Auteur Sergei Volis |
Documents disponibles écrits par cet auteur (2)
Affiner la rechercheComplementarities of two existing intermediate conservation approaches / Sergei Volis in Plant diversity, 39 (6) (December 2017)
Titre : Complementarities of two existing intermediate conservation approaches Type de document : Imprimé Auteurs : Sergei Volis Année de publication : 2017 Article en page(s) : 379-382 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Biodiversité
[CBNPMP-Thématique] Stratégie de conservation ex situ
[CBNPMP-Thématique] Stratégie de conservation in situRésumé : The need for integration of ex situ and in situ approaches in conservation of plants has long been recognized. However, ex situ collections have numerous limitations that reduce their utility for conservation,
necessitating the introduction of new, more appropriate, flexible and less costly approaches. Two new approaches that can be called “intermediate” between in situ and ex situ, and bridging them in some way have been proposed over the last two decades. In these approaches material collected in natural populations is planted and maintained outside the original location, but with a different purpose. While the purpose of the inter situs approach is reintroduction, the concern of the quasi in situ approach is long-term storage of species genetic diversity. I view these two approaches as complementary and necessary components of conservation-oriented restoration. In restoration of a degraded habitat using threatened species (i.e. inter situs), quasi in situ collections can serve an important role in providing longterm
preservation of these species’ genetic diversity and production of seeds needed for restoration.Lien pérenne : DOI : 10.1016/j.pld.2017.10.005 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=146645
in Plant diversity > 39 (6) (December 2017) . - 379-382Volis, Sergei 2017 Complementarities of two existing intermediate conservation approaches. Plant diversity, 39(6): 379-382.Documents numériques
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Titre : Seed macro- and micromorphology in Allium (Amaryllidaceae) and its phylogenetic significance Type de document : Imprimé Auteurs : Ziyoviddin Yusupov ; Ibrokhimjon Ergashov ; Sergei Volis ; Dilmurod Makhmudjanov ; Davron Dekhkonov ; Furkat Khassanov ; Komiljon Tojibaev ; Tao Deng ; Hang Sun Année de publication : 2022 Article en page(s) : 869-911 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Graines Mots-clés : Allium Résumé : Background and Aims : Macro- and micromorphology of seeds are diagnostic characteristics of importance in delimiting taxa in Allium (Amaryllidaceae). However, there is no consensus on the phylogenetic significance of testa cell characteristics and whether they reflect the different evolutionary levels recognized in Allium. Methods : Seeds of 95 species (98 samples) representing 14 subgenera and 58 sections of Allium were examined using scanning electron microscopy (SEM) for such traits as periclinal wall surface area of ten testa cells, distance between testa cells (macromorphology), testa cell shapes, and arrangement and structure of anticlinal and periclinal walls (micromorphology). The data matrix was subjected to cladistic analysis. The produced phylogenetic tree was examined against the molecular tree obtained from publically available ITS sequences. Key Results : The periclinal wall surface area of ten testa cells and the distance between them, examined for the first time, were found useful for delimitation of species in Allium. Based on seed macro- and micromorphology, we present a taxonomic key and a hypothetical reconstruction of the migration routes during the early stages of evolution of Allium. Conclusions : The ancestors of Allium originated in an area bounded by the Caucasus, Central Asia and Iran. The seed testa morphology-based evolutionary state of a species is determined by two parameters: the shape of the periclinal walls and curvature of the anticlinal walls. Lien pérenne : DOI : 10.1093/aob/mcac067 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=153144
in Annals of Botany > 129 (7) (June 2022) . - 869-911Yusupov, Ziyoviddin, Ergashov, Ibrokhimjon, Volis, Sergei, Makhmudjanov, Dilmurod, Dekhkonov, Davron, Khassanov, Furkat, Tojibaev, Komiljon, Deng, Tao, Sun, Hang 2022 Seed macro- and micromorphology in Allium (Amaryllidaceae) and its phylogenetic significance. Annals of Botany, 129(7): 869-911.Documents numériques
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