4f4c4942-4343-5764-6473-313038363538 English Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en 2025-03-07T17:02:56.069Z NRW 1.0 wel British National Grid (EPSG::27700) An Assessment of Juniperus communis (Juniper) Sub-species Hemisphaerica in Britain using Molecular Markers An Assessment of Juniperus communis (Juniper) Sub-species Hemisphaerica in Britain using Molecular Markers Asesu meryw Juniperus communis is-rh. hemisphaerica ym Mhrydain gan ddefnyddio marcwyr molecwlar 2008-12-31 NRW_DS108658 This dataset contains the results of genetic analysis aimed at ascertaining the distinction of subspecies of Juniper comminis (juniper) a morphologically variable dioecious species native to the British Isle. Within Britain the extremes of this variation are recognised by two sub-species ssp. communis and ssp. nana but many intermediate forms are known and two further sub-species are also recognised by some- ssp. depressa and ssp. hemisphaerica. It has been suggested that these sub-species should be considered as varieties of J. communis, however because of the rarity of the ssp. hemisphaerica in Britain further clarification of its taxonomic status was desirable. The ssp. hemisphaerica, while found in mountainous areas of southern Europe and north-west Africa, is confined to two main small populations on low maritime cliffs in the UK. Other population, also consisting of less than 10 individuals, is found on Ramsay Island on the Pembrokeshire coast, south Wales. In addition, 4 other individuals from Wales have been considered to show morphological characters that are indicative of ssp. hemisphaerica, the populations being at Skrinkle Haven (Pembrokeshire) and Holyhead Mountain (Anglesey). The aims of the project were: - to ascertain whether plants named as Juniperus communis ssp. hemisphaerica form a cohesive genetic group distinct from Juniperus communis ssp. communis; - to assess the extent of clonal growth in British populations of ssp. hemisphaerica. The dataset also confirms the status of a UK BAP species to determine future conservation effort. This dataset contains the results of genetic analysis aimed at ascertaining the distinction of subspecies of Juniper comminis (juniper) a morphologically variable dioecious species native to the British Isle. Within Britain the extremes of this variation are recognised by two sub-species ssp. communis and ssp. nana but many intermediate forms are known and two further sub-species are also recognised by some- ssp. depressa and ssp. hemisphaerica. It has been suggested that these sub-species should be considered as varieties of J. communis, however because of the rarity of the ssp. hemisphaerica in Britain further clarification of its taxonomic status was desirable. The ssp. hemisphaerica, while found in mountainous areas of southern Europe and north-west Africa, is confined to two main small populations on low maritime cliffs in the UK. Other population, also consisting of less than 10 individuals, is found on Ramsay Island on the Pembrokeshire coast, south Wales. In addition, 4 other individuals from Wales have been considered to show morphological characters that are indicative of ssp. hemisphaerica, the populations being at Skrinkle Haven (Pembrokeshire) and Holyhead Mountain (Anglesey). The aims of the project were: - to ascertain whether plants named as Juniperus communis ssp. hemisphaerica form a cohesive genetic group distinct from Juniperus communis ssp. communis; - to assess the extent of clonal growth in British populations of ssp. hemisphaerica. The dataset also confirms the status of a UK BAP species to determine future conservation effort. Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en Royal Botanic Garden,Edinburgh Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en Species distribution GEMET - INSPIRE themes, version 1.0 2008-06-01 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme juniper juniperus communis molecular markers NRW Thesaurus 2023-12-31 geonetwork.thesaurus.local.theme.converted_nrw-keywords SeaDataNet Parameter Discovery Vocabulary 2021-01-06 geonetwork.thesaurus.external.theme.rdf+xml Integrated Public Sector Vocabulary 2013-04-03 geonetwork.thesaurus.external.theme.subjects NRW SMNR Vocabulary 2023-12-27 geonetwork.thesaurus.local.theme.converted_nrw-smnr-keywords There are no access restrictions on this data. NRW may release, publish or disseminate it freely. no limitations © CNC/NRW Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and NRW's copyright. It is the recipient's responsibility to ensure the data is fit for the intended purpose. English biota SeaVoX Vertical Co-ordinate Coverages 2021-01-06 Scotland (SCT) Wales (WLS) England (ENG) -5.777741 -2.608865 51.240829 53.513067 2007-01-01 2008-12-31 An assessment of Juniperus communis ssp hemisphaerica in Britain using molecular markers Documents [A] Hardcopy report- paper and electronic version (PDF & MS Word) Ffynnon Reference Number (DCT-09-049646) Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 This dataset has not been assessed for conformance to the referenced INSPIRE regulation. false All available populations/individuals of ssp. hemisphaerica were sampled (22 plants). To place the results into context, ssp. communis from neighbouring localities were sampled where possible as well as other populations from further afield within the UK (50 plants in total) to capture the range of genetic diversity found within this taxon. DNA was extracted from silica dried leaf material using a Qiagen DNeasy 96 Plant Kit. The genetic techniques used were nuclear microsatellites and chloroplast markers, data analysis was then undertaken. The contractors are experts in this field and so were chosen for the reliability of their research. All available populations/individuals of ssp. hemisphaerica were sampled (22 plants). To place the results into context, ssp. communis from neighbouring localities were sampled where possible as well as other populations from further afield within the UK (50 plants in total) to capture the range of genetic diversity found within this taxon. DNA was extracted from silica dried leaf material using a Qiagen DNeasy 96 Plant Kit. The genetic techniques used were nuclear microsatellites and chloroplast markers, data analysis was then undertaken. The contractors are experts in this field and so were chosen for the reliability of their research.