The Colchic region as refuge for relict tree lineages: cryptic speciation in field maples

Grimm, Guido W.; Denk, Thomas

doi:10.3906/bot-1403-87

Cited by 26 publications

(46 citation statements)

References 49 publications

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“…To assess whether R. alpina was historically closely associated with its hosts, we compared the phylogeographical patterns of R. alpina to those of its marginal hosts ( Fraxinus , Ulmus , Acer, and Tilia ) and the main host ( Fagus sylvatica s.l.). Even though information about some of the marginal hosts is rather fragmentary, some basic patterns can be inferred (Grimm & Denk, ; Heuertz et al., ; Myking & Yakovlev, ; Phuekvilai, ; Whiteley, ). Unlike R. alpina , the marginal hosts consist of several genetically diversified lineages surviving in multiple refugia throughout Europe.…”

Section: Discussionmentioning

confidence: 99%

Phylogeography of the endangered saproxylic beetle Rosalia longicorn, Rosalia alpina (Coleoptera, Cerambycidae), corresponds with its main host, the European beech (Fagus sylvatica, Fagaceae)

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Hauck

Říčan

et al. 2018

Journal of Biogeography

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Aim The Rosalia longicorn (Rosalia alpina) is an internationally protected icon of biodiversity associated with old trees and dead wood. Although the beetle regularly exploits several marginal hosts, its preferred main host is European beech (Fagus sylvatica s.l.). Moreover, the geographical ranges of R. alpina and beech closely overlap. To assess whether their spatial association is mirrored in the genetic patterns of both species, we investigated the phylogeography of Rosalia alpina over its entire geographical range and compared it with the known genetic patterns of its hosts. Location Europe and western Asia. Methods Using both mitochondrial (COI) and nuclear (14 microsatellite loci) markers, we analysed 148 (444, respectively) individuals from 31 (30, respectively) sites. We constructed a Bayesian Inference tree and a haplotype network, calculated the spatial analysis of molecular variance and assessed the population structure of our dataset using two Bayesian clustering methods (STRUCTURE and BAPS). Results Mitochondrial markers suggested existence of five clades in R. alpina populations. Two of them were endemic to the Italian mainland, one to Sicily, and another to southern Turkey. The remaining clade probably originated in the Balkans and colonized the rest of the species’ range. Nuclear markers supported this division. They also suggested two main recolonization routes from the Balkans; one heading north and then both west and east, the second expanding eastwards as far as the Caucasus. The observed genetic patterns were largely congruent with those of European beech. Main conclusions The results of both markers were mostly congruent, suggesting at least four potential refugia for R. alpina located in the southernmost parts of its geographical range. Its populations from a large part of Europe and western Asia, however, were genetically poor, dominated by a single haplotype. Phylogeographies of the beetle and its main host seem to be tightly matched, reflecting their common history.

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Section: Discussionmentioning

confidence: 99%

Phylogeography of the endangered saproxylic beetle Rosalia longicorn, Rosalia alpina (Coleoptera, Cerambycidae), corresponds with its main host, the European beech (Fagus sylvatica, Fagaceae)

Drag

Hauck

Říčan

et al. 2018

Journal of Biogeography

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“…Acer is still quite diverse in the flora of western Eurasia with ca. 17 species in three sections (van Gelderen et al 1994;Grimm et al 2007;Grimm and Denk 2014).…”

Section: Speciation and Extinction In The Late Pliocene Of Europementioning

confidence: 99%

The Pliocene flora of Frankfurt am Main, Germany: taxonomy, palaeoenvironments and biogeographic affinities

Kvaček

Teodoridis

Denk

2019

Palaeobio Palaeoenv

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The Pliocene flora of Frankfurt am Main described by Karl Mädler during the first half of the twentieth century is a key flora for the European Pliocene. In the present study, we revised the leaf fossil taxa described by Mädler and investigated plant material collected after Mädler's publication. The revised and augmented floral list comprises seven new species and some new combinations of taxa described by Mädler. In total, 16 gymnosperm species in 15 genera and 73 angiosperm species (of which 15 could not be assigned to a genus) in 40 genera are recognised in the leaf record. Main characteristics of the flora are the high diversity of conifers, the diverse assemblage of exclusively deciduous Fagaceae, including six species of oaks, and the high diversity of Rosaceae. These features indicate cool temperate climatic conditions (comparable to Lugano in southern Switzerland). Angiosperm genera that are today confined to North America and/or East Asia (Eucommia, Magnolia and Sassafras) also are deciduous, whereas evergreen taxa are shrubs typical of the understorey (Buxus, Ilex, Pachysandra, Prunus lusitanica type) and Viscum. Eighteen taxa recorded in the Pliocene of Frankfurt am Main are today absent from western Eurasia and eastern North America, and 25 taxa are absent from western North America. This shows (i) a strong biogeographic link of the Pliocene flora of Frankfurt am Main with East Asia, (ii) surprisingly high levels of speciation (Pliocene endemisms) and (iii) that the European flora was more diverse in woody species shortly before the onset of major Pleistocene glaciations than today.

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“…In recent classifications, Acer consists of 16 sections and 126 species (Acevedo-Rodringuez et al 2011). There are so high hybridization and diversity between Acer species that taxonomic identification is difficult (Grimm et al 2007(Grimm et al , 2014. Interand intraspecific variability of the group is the main cause of its taxonomic complexity.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, with hybridization as a potentially effective phenomenon in the formation of species complexes, it is difficult to identify species of maples (Grimm et al 2007). Characterizing the new sequence types, Grimm and Denk (2014) showed that cryptic speciation can occur in isolated populations of B I O D I V E R S I T A S 20 (1): 297-304, January 2019 298 maples and reported cryptic species in maples from Georgia. Cytogenetic studies of Acer, which has a basic chromosome number of 13 (x = 13) and various levels of ploidy (Grimm and Denk 2014), confirms inter-and intraspecific complications in the genus.…”

Section: Introductionmentioning

confidence: 99%

“…Characterizing the new sequence types, Grimm and Denk (2014) showed that cryptic speciation can occur in isolated populations of B I O D I V E R S I T A S 20 (1): 297-304, January 2019 298 maples and reported cryptic species in maples from Georgia. Cytogenetic studies of Acer, which has a basic chromosome number of 13 (x = 13) and various levels of ploidy (Grimm and Denk 2014), confirms inter-and intraspecific complications in the genus. According to different sources, eight species of Acer, i.e., A.…”

Section: Introductionmentioning

confidence: 99%

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Using micro-morphological fruit characters in resolving some of ambiguities in Iranian Acer L. (Sapindaceae) species

et al. 2018

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Asadi F, Sharifnia F, Salimpour F, Majd A. 2019. Using micro-morphological fruit characters in resolving some of ambiguities in Iranian Acer L. (Sapindaceae) species. Biodiversitas 20: 297-304. Acer L. belongs to the Sapindaceae family consists of 126 species which are distributed in the temperate regions of the northern hemisphere. There are 12 taxa (including Acer monspessulanum with four subspecies and Acer velutinum with two varieties) in Iran. In this study 21 fruit characteristics are partially investigated using Scanning Electron Microscope (SEM) and Stereomicroscope. According to the obtained results, four types of faveolate, folded, wrinkled and pavement wing surface ornamentations as well as four types of faveolate, folded, verrucous, and wrinkled achene surface ornamentations were observed. Hair of wing margin, achene hair, wing ornamentation, inside angle of wing, and outside angle of wing have taxonomic value. According to fruit morphology, separation of 4 subspecies of A. monspessulanum can be verified. Also varieties of A. velutinum var. velutinum, and A. velutinum var. glabrescens were totally separated due to differences in characteristics such as wing ornamentation, achene ornamentation, hair density of achene, wing length, wing width, the ratio of length to width of wing, total fruit length, total fruit width, the ratio of length to width of fruit, inside angle of wing, outside angle of wing. The results showed that micro-morphological fruit characters of Acer genus are valuable in terms of taxonomy and classification of subspecies level.

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The Colchic region as refuge for relict tree lineages: cryptic speciation in field maples

Abstract: IntroductionThe genus Acer is the second-largest tree genus in the northern hemisphere in terms of the number of accepted species (van Gelderen et al., 1994;de Jong, 2002). Intrageneric classifications of the genus based on morphology and chemotaxonomy have been unstable

Cited by 26 publications

References 49 publications

Phylogeography of the endangered saproxylic beetle Rosalia longicorn, Rosalia alpina (Coleoptera, Cerambycidae), corresponds with its main host, the European beech (Fagus sylvatica, Fagaceae)

Phylogeography of the endangered saproxylic beetle Rosalia longicorn, Rosalia alpina (Coleoptera, Cerambycidae), corresponds with its main host, the European beech (Fagus sylvatica, Fagaceae)

The Pliocene flora of Frankfurt am Main, Germany: taxonomy, palaeoenvironments and biogeographic affinities

Using micro-morphological fruit characters in resolving some of ambiguities in Iranian Acer L. (Sapindaceae) species

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