Clonal structure and high genetic diversity at peripheral populations of Sorbus torminalis (L.) Crantz.

Jankowska-Wróblewska, Sandra; Meyza, Katarzyna; Sztupecka, Ewa; Kubera, L.; Burczyk, Jarosław

doi:10.3832/ifor1885-009

Cited by 14 publications

(16 citation statements)

References 72 publications

(91 reference statements)

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“…Our results thus contrast the commonly proposed theory that the peripheral populations have less genetic diversity when compared to central populations (Rasmussen and Kollmann 2007;Arnaud-Haond et al 2006;Yeh and Layton 1979). Similar trends have been previously reported in other woody species (Gapare et al 2005;Muir et al 2004;Jankowska-Wroblewska et al, 2016;Yakimowski and where the genetic diversity was not different between the peripheral and core populations. In a review of population genetic studies, 64% of 81 studied plant species showed lower genetic diversity in the peripheral populations, and 33% of 37 studied plant species conformed to the hypothesis that the peripheral populations were genetically differentiated from their central counterparts.…”

Section: Genetic Diversity Of Prunus Avium At Its Northern Parts Of Ssupporting

confidence: 82%

Genetic diversity and genotypic stability in Prunus avium L. at the northern parts of species distribution range

Lobo

Kjær

Olrik³

et al. 2018

Annals of Forest Science

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& Key message Large genetic variation was found in Prunus avium L. populations from the northern parts of the species distribution range. The ranking of genotypes in terms of growth was stable when tested at three trial sites within the northern parts of the species distribution range. & Context Peripheral populations especially those in the leading edge are isolated from rest of the areas in the species distribution range. This can make them less genetically diverse yet genetically distinct from the rest of the populations in the species distribution range. Evaluation of their genetic diversity is thus crucial in understanding the local adaptation potential of a species. & Aims We investigated the genetic diversity and genotype by environment interaction at the northern parts of the distribution range of P. avium. & Methods Quantitative genetic variation of growth, stem form, and spring phenology were assessed in progenies from 93 plus trees of P. avium selected from 43 locations at the north of the species distribution range in Sweden and tested at two Swedish sites and one Danish site. & Results We find large quantitative genetic variation in growth and phenology at the northern part of the distribution range of P. avium. Only a limited genotype by environment interaction was observed with no clear indication of local adaptation at the northern parts of the species distribution. & Conclusion We conclude that P. avium harbors a high level of genetic diversity at the north of its distribution range. Present patterns therefore reflect more likely the recent introduction of the species and dispersal dynamics rather than a long-term loss of diversity along South-North ecological clines during the Holocene. With no indications of genetic depletion in growth or phenology, the gene pool in the breeding program is considered suitable for the future propagation of the species in the tested area.

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Section: Genetic Diversity Of Prunus Avium At Its Northern Parts Of Ssupporting

confidence: 82%

Genetic diversity and genotypic stability in Prunus avium L. at the northern parts of species distribution range

Lobo

Kjær

Olrik³

et al. 2018

Annals of Forest Science

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“…As expected from a largely outbreeding tree, S. torminalis has been found to be genetically diverse within and between populations with strong gene flow (Demesure et al 2000a;Oddou-Muratorio et al 2001aBednorz & Krzakowa 2002;Bednorz, Myczko & Kosi nski 2004Oddou-Muratorio, Klein & Austerlitz 2005;Rasmussen & Kollmann 2004bHoebee et al 2006Hoebee et al , 2007Angelone et al 2007;Espahbodi et al 2008, Jankowska-Wroblewska et al 2016. Sorbus torminalis in Britain has a lower genetic diversity than the other two common sexually reproducing diploid species, S. aria and S. aucuparia (Proctor, Proctor & Groenhof 1989;Chester et al 2007) and lower than S. torminalis in mainland Europe: Chester et al found that pollen exchange shows two main patterns: preferential mating between neighbouring trees from local pollen dispersal with a mean of 6 pollen donors providing the pollen cloud around a given tree, and also long-distance pollen movement of up to 2Á5 km.…”

Section: Floral and Seed Charactersmentioning

confidence: 73%

“…, Jankowska‐Wroblewska et al . ). Sorbus torminalis in Britain has a lower genetic diversity than the other two common sexually reproducing diploid species, S. aria and S. aucuparia (Proctor, Proctor & Groenhof ; Chester et al .…”

Section: Floral and Seed Charactersmentioning

confidence: 97%

Biological Flora of the British Isles:Sorbus torminalis

Thomas

2017

Journal of Ecology

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Summary1. This account presents information on all aspects of the biology of Sorbus torminalis (L.) Crantz (Wild Service-tree) that are relevant to understanding its ecological characteristics and behaviour. The main topics are presented within the standard framework of the Biological Flora of the British Isles: distribution, habitat, communities, responses to biotic factors, responses to environment, structure and physiology, phenology, floral and seed characters, herbivores and disease, history and conservation. 2. Sorbus torminalis is an uncommon, mostly small tree (but can reach 33 m) native to lowland England and Wales, and temperate and Mediterranean regions of mainland Europe. It is the most shade-tolerant member of the genus in the British Isles, and as a result, it is more closely associated with woodland than any other British species. Like other British Sorbus species, however, it grows best where competition for space and sunlight is limited. Seedlings are shade tolerant but adults are only moderately so. This, combined with its low competitive ability, restricts the best growth to open areas. In shade, saplings and young adults form a sapling bank, showing reproduction and extensive growth only when released. Sorbus torminalis tolerates a wide range of soil reaction (pH 3Á5-8Á0) but grows best on calcareous clays and thin soils over limestone. 3. Sorbus torminalis is a sexual, diploid, non-apomictic species that has hybridised with a number of other Sorbus species to form microspecies. The hermaphrodite flowers are primarily insect pollinated. Seed production is reliable only in warm years, especially at the edge of its range, although even then seed viability is low. The fruits are primarily dispersed by carnivorous mammals. Seeds display embryo dormancy but most will germinate the first spring after falling. 4. This tree is very tolerant of short droughts but only moderately tolerant of frost, hence its southerly and lowland distribution. It faces no particular individual threats although the small size of most populations makes it susceptible to habitat loss and fragmentation, particularly through the loss of open coppiced areas. As a consequence, it appears to be declining throughout Britain and Europe despite its wide range of historical uses and the high value of its timber. The extent to which these losses will be offset by increases due to climate change is unknown.Key-words: climatic limitation, communities, conservation, ecophysiology, geographical and altitudinal distribution, germination, herbivory, mycorrhiza, parasites and diseases, reproductive biology, soils Wild Service-tree or Chequers/Chequer tree. Rosaceae. Sorbus torminalis (L.) Crantz (Crataegus torminalis L., Pyrus torminalis (L.) Ehrh., Aria torminalis (L.) Beck., Torminaria clusii Roem., Torminalis clusii (Roem.) Roberts & Phipps) is usually a subordinate, subcanopy tree or shrub of temperate deciduous forests, and more rarely a co-dominant canopy tree reaching 30-33 m. Suckers profusely. Crown narrow when shaded but round, ...

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“…On the other hand, extensive dispersal and immigration would weaken FSGS over generations. Therefore, investigating the pattern of FSGS and how it varies between generations provides insight into the intensity and spatial scale of gene dispersal and other fundamental aspects of species' biology, such as the mating system (Segelbacher et al 2010) or clonality (Dering et al 2016;Jankowska-Wroblewska et al 2016). Knowledge of the scale of gene dispersal within populations of species is a crucial information for the design of a conservation strategy that will be effective for the maintenance of genetic diversity of the species.…”

Section: Introductionmentioning

confidence: 99%

Fine-scale spatial genetic structure in the frankincense tree Boswellia papyrifera (Del.) Hochst. and implications for conservation

Addisalem

Duminil

Wouters

et al. 2016

Tree Genetics & Genomes

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The fine-scale genetic structure and how it varies between generations depends on the spatial scale of gene dispersal and other fundamental aspects of species' biology, such as the mating system. Such knowledge is crucial for the design of genetic conservation strategies. This is particularly relevant for species that are increasingly fragmented such as Boswellia papyrifera. This species occurs in dry tropical forests from Ethiopia, Eritrea and Sudan and is an important source of frankincense, a highly valued aromatic resin obtained from the bark of the tree. This study assessed the genetic diversity and fine-scale spatial genetic structure (FSGS) of two cohorts (adults and seedlings) from two populations (Guba-Arenja and Kurmuk) in Western Ethiopia and inferred intrapopulation gene dispersal in the species, using microsatellite markers. The expected heterozygosity (H E ) was 0.664-0.724.The spatial analyses based on kinship coefficient (F ij ) revealed a significant positive genetic correlation up to a distance of 130 m. Spatial genetic structure was relatively weak (Sp = 0.002-0.014) indicating that gene dispersal is extensive within the populations. Based on the FSGS patterns found, we estimate indirectly gene dispersal distances of 103 and 124 m for the two populations studied. The high heterozygosity, the low fixation index and the low Sp values found in this study are consistent with outcrossing as the (predominant) mating system in B. papyrifera. We suggest that seed collection for ex situ conservation and reforestation programmes of B. papyrifera should use trees separated by distances of at least 100 m but preferably 150 m to limit genetic relatedness among seeds from different trees. Communicated by F. GugerliElectronic supplementary material The online version of this article

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Clonal structure and high genetic diversity at peripheral populations of Sorbus torminalis (L.) Crantz.

Cited by 14 publications

References 72 publications

Genetic diversity and genotypic stability in Prunus avium L. at the northern parts of species distribution range

Genetic diversity and genotypic stability in Prunus avium L. at the northern parts of species distribution range

Biological Flora of the British Isles:Sorbus torminalis

Fine-scale spatial genetic structure in the frankincense tree Boswellia papyrifera (Del.) Hochst. and implications for conservation

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