DOI: 10.1016/j.foreco.2015.10.038
Scopus记录号: 2-s2.0-84945577599
论文题名: Genetic diversity and differentiation of the frankincense tree (Boswellia papyrifera (Del.) Hochst) across Ethiopia and implications for its conservation
作者: Addisalem A.B. ; Bongers F. ; Kassahun T. ; Smulders M.J.M.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 360 起始页码: 253
结束页码: 260
语种: 英语
英文关键词: Conservation genetics
; Frankincense
; Genetic differentiation
; Genetic diversity
; Microsatellite marker
Scopus关键词: Biodiversity
; Conservation
; DNA sequences
; Genes
; Geographical distribution
; International trade
; Reforestation
; Anthropogenic threats
; Boswellia papyrifera
; Conservation strategies
; Environmental conditions
; Frankincense
; Genetic differentiation
; Genetic diversity
; Microsatellite markers
; Forestry
; anthropogenic effect
; conservation genetics
; dicotyledon
; genetic marker
; genetic variation
; geographical distribution
; pasture
; polymorphism
; resin
; sapling
; seedling
; tropical forest
; Ethiopia
; Boswellia papyrifera
; Boswellia sacra
; Combretum
; Terminalia
英文摘要: Boswellia papyrifera is used to produce frankincense, a bark resin that has been a commodity of domestic and international trade since ancient times. It is harvested from natural forests. The tropical dry forest (Terminalia-Combretum) woodland ecosystems in which B. papyrifera is one of the dominant species, are facing anthropogenic threats. In Ethiopia B. papyrifera populations have decreased tremendously to smaller and isolated remnant patches, and many forests in the North-western and North-eastern parts of Ethiopia completely lack recruitment of saplings. This regeneration bottleneck, in combination with adult mortality, threatens the persistence of the species. Devising an effective strategy to conserve wild genetic resources needs information on the genetic diversity and the pattern of genetic differentiation across the species area. In the present study we analysed adult trees sampled in twelve populations across the growing area of the species in Ethiopia for genetic diversity and spatial genetic differentiation using 10 polymorphic microsatellite loci. The mean level of observed and expected heterozygosity were 0.669 and 0.681 respectively, and these levels were similar for trees from larger populations and those from degraded populations. A moderate level of among populations genetic differentiation (FST=0.084) was detected. Genetic distance between populations was correlated with geographic distance (r=0.663, p<0.05). STRUCTURE analysis distinguished four distinct genetic clusters corresponding to regions with different environmental conditions. In the Western populations we detected recruitment of many seedlings and saplings, which is a significant novel finding as most of the other populations are completely devoid of saplings. We conclude that currently a high level of genetic variation is still maintained in B. papyrifera adult trees across the species' range in Ethiopia including the highly degraded remnant B. papyrifera population patches scattered on farm and pasture lands. An effective conservation strategy for the species has to take into account the geographic distribution of source populations. © 2015 Elsevier B.V.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65154
Appears in Collections: 影响、适应和脆弱性
There are no files associated with this item.
作者单位: Wageningen UR Plant Breeding, Wageningen University and Research Center, P.O. Box 386, AJ Wageningen, Netherlands; Forest Ecology and Forest Management Group, Wageningen University and Research Center, P.O. Box 47, AA Wageningen, Netherlands; Wondo Genet College of Forestry and Natural Resources, P.O. Box 128, Shashemene, Ethiopia; Institute of Biotechnology, Addis Ababa University, P.O. Box 32853, Addis Ababa, Ethiopia
Recommended Citation:
Addisalem A.B.,Bongers F.,Kassahun T.,et al. Genetic diversity and differentiation of the frankincense tree (Boswellia papyrifera (Del.) Hochst) across Ethiopia and implications for its conservation[J]. Forest Ecology and Management,2016-01-01,360