Postglacial migration of Populus nigra L.: lessons learnt from chloroplast DNA

Cottrell, Joan; Krystufek, V.; Tabbener, Helen; Milner, Allison; Connolly, Thomas P.; Sing, Louise; Fluch, Silvia; Burg, K.; Lefèvre, François; Achard, Patrick; Bordács, Sándor; Gebhardt, K.; Vornam, Barbara; Smulders, M.J.M.; Broeck, A.H. Vanden; Slycken, Jos Van; Storme, Véronique; Boerjan, Wout; Castiglione, Stefano; Fossati, T.; Alba, N.; Agúndez, D.; Maestro, Carmen Pérez; Notivol, Eduardo; Bovenschen, J.; Dam, B.C. van

doi:10.1016/j.foreco.2004.10.052

Cited by 43 publications

(41 citation statements)

References 42 publications

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“…We have selected only 931 individuals for assessment and there is many more in this area covering almost 20,000 ha. Balkan Peninsula is already known as potential refugium of many plant species, and it is supposed as one of refugium for P. nigra (Cottrell et al, 2005), which explains still satisfying number of this endangered species in this area.…”

Section: Viability Assessmentmentioning

confidence: 99%

Viability and genetic diversity of Populus nigra population from riparian forest in SNR Gornje Podunavlje

Čortan¹,

Tubić²

2017

Dendrobiology

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Populus nigra L. is one of the rarest and most endangered tree species in Western and Central Europe. Its genetic diversity is of great importance in enabling a native riparian population to survive and reproduce under changing environmental conditions. The aim of this research was assessment of P. nigra viability in one of the best preserved riparian ecosystems in Europe, Special Nature Reserve "Gornje Podunavlje" (Upper Danube), Serbia. Additionally, the analysis of the genetic diversity was made to support the effective conservation in the future. During our study, we have mapped 931 P. nigra trees, which were used for the assessment of present native population. Furthermore, we used 14 microsatellite markers to assess the genetic structure of this this population. Viability assessment showed considerable occurrence of P. nigra in the research area, even though the results show fragmentation. P. nigra occurs mostly individually or in small groups of trees, and has a non-sustainable age structure due to insufficient or lacking regeneration. Despite the limited size of the studied population, the apparent overall genetic diversity was high (He = 0.759) and comparable to other known native populations of P. nigra along the Danube basin. However, the results also confirmed existence of recent bottleneck effect. Significantly positive and quite high F is value (0.147) was noted, which may be ascribed to the "Wahlund effect" because of the population substructure that was revealed by the STRUC-TURE analysis (K=2). Although results say that coverage of native stands is not so promising, most of selected trees within our research assessed showed good viability with potential for natural reproduction However, the problem is that suitable areas for natural seedling establishment are scarce and with that gene flow is probably limited. The fragmentation of the area must be reduced and isolated stands must be interlinked as there is need to create larger non-fragmented areas.

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Section: Viability Assessmentmentioning

confidence: 99%

Viability and genetic diversity of Populus nigra population from riparian forest in SNR Gornje Podunavlje

Čortan¹,

Tubić²

2017

Dendrobiology

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“…For example, Praglowski (1966) observed that the surrounding conditions influenced the size of Betula nana L. pollen; hence, it is not always possible to distinguish between birch species based on pollen grain size. The lack of or scarcities of fossil data are additional problems regarding a palaeoecological survey, which was revealed for Prunus spinosa L. (Mohanty et al 2002) and Populus nigra L. (Cottrell et al 2005, Fussi et al 2010. Betula pendula Roth.…”

Section: Introductionmentioning

confidence: 99%

What can molecular markers tell us about the glacial and postglacial histories of European birches?

Jadwiszczak¹

2012

Silva Fenn.

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The last glaciation was one of the most severe of the Pleistocene epoch. The development of the Scandinavian ice sheet forced many species to reduce their ranges to areas with favourable climatic conditions. Most European species survived the Last Glacial Maximum in refugia in southern parts of Europe. Cold-tolerant species, such as birch trees and shrubs, could also inhabit western, eastern or central Europe. After climate warming, Holocene recolonisation began. This paper presents a comparative analysis of the genetic variation of four European Betula species to reconstruct their glacial and postglacial histories. Two chloroplast DNA haplotypes dominate within the ranges of all birch species, one haplotype is the most common in western and northwestern Europe, the second haplotype occurs mainly in the eastern and southeastern parts of the continent. This finding suggests that birches have recolonised Europe from the western and the eastern refugia, respectively. Most of Europe was likely populated from higher latitude refugia because there was no evidence of isolation by distance and weak genetic structures were detected. Similar patterns of haplotype distributions within Betula ranges indicate that postglacial recolonisation may be disturbed by interspecies hybridisation.

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“…Organelle markers are uniparentally inherited and exhibit reduced effective population sizes; hence, they reveal a clearer picture of the genealogical history of a species than do nuclear markers (Vettori et al 2004). Previous studies have successfully used cpDNA markers to deduce the locations of glacial refugia and postglacial colonisation routes in Alnus glutinosa (King and Ferris 1998), Fagus sylvatica (Demesure et al 1996;Magri et al 2006), Fraxinus excelsior (Heuertz et al 2004), Quercus (Csaikl et al 2002;Petit et al 2002a, b), Populus (Cottrell et al 2005;Fussi et al 2010) and Betula (Palmé et al 2003;Maliouchenko et al 2007;Thórsson et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Chloroplast DNA variation of Betula humilis Schrk. in Poland and Belarus

Jadwiszczak

Banaszek

Jabłońska

et al. 2012

Tree Genetics & Genomes

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Betula humilis is an endangered plant species in Central Europe. In order to protect this species, it is necessary to document its genetic diversity in this region and to identify areas for conservation prioritisation. As molecular investigations conducted throughout the ranges of many plant species have shown that the highest genetic diversities are found within former glacial refugia and/or within the contact zones of different phylogenetic lineages, we investigated the reasons underlying the considerable genetic variation of B. humilis in northeastern Poland revealed previously using nuclear microsatellites. We analysed 365 individuals of B. humilis from 19 populations and 67 specimens of Betula pendula and Betula pubescens sampled in four geographical regions in Poland and Belarus for polymorphism in chloroplast PCR-restriction fragment length polymorphism markers. Genetic data strongly suggested that B. humilis could have survived the Last Glacial Maximum at higher latitudes, but the hypothesis of a refugium in southeastern Poland was rejected. Chloroplast DNA analysis confirmed high genetic diversity in some populations in northeastern Poland. This phenomenon can likely be explained in terms of a suture zone, as the high haplotypic richness was followed by h T ≤v T . Similar patterns of haplotype distributions in the birches under study and high introgression ratio (IG00.71) among B. humilis and congeneric trees suggested that postglacial recolonisation of the shrub birch was complicated by haplotype sharing with other birches.

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Postglacial migration of Populus nigra L.: lessons learnt from chloroplast DNA

Cited by 43 publications

References 42 publications

Viability and genetic diversity of Populus nigra population from riparian forest in SNR Gornje Podunavlje

Viability and genetic diversity of Populus nigra population from riparian forest in SNR Gornje Podunavlje

What can molecular markers tell us about the glacial and postglacial histories of European birches?

Chloroplast DNA variation of Betula humilis Schrk. in Poland and Belarus

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