Phosphoglucose isomerase (PGI) polymorphism in Sorbus torminalis (L.) Crantz

Bednorz, Leszek; Krzakowa, Maria

doi:10.5586/asbp.2002.013

Cited by 1 publication

(4 citation statements)

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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: 70%

“…2000a; Oddou‐Muratorio et al . 2001a, , ; Bednorz & Krzakowa ; Bednorz, Myczko & Kosiński , 2006; Oddou‐Muratorio, Klein & Austerlitz ; Rasmussen & Kollmann 2004b, ; Hoebee et al . , ; Angelone et al .…”

Section: Floral and Seed Charactersunclassified

“…Others have measured G ST as low as 0·13 (Prat & Daniel ; Oddou‐Muratorio et al . 2001b; Bednorz & Krzakowa ).…”

Section: Floral and Seed Charactersmentioning

confidence: 99%

“…(0Á84) and Fraxinus excelsior (0Á86). Others have measured G ST as low as 0Á13 (Prat & Daniel 1993;Oddou-Muratorio et al 2001b;Bednorz & Krzakowa 2002).…”

Section: Demesurementioning

confidence: 99%

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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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