کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2180369 | 1095133 | 2006 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Distribution of genetic variability in southern populations of Scots pine (Pinus sylvestris L.) from the Alps to the Apennines
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کلمات کلیدی
ISSRFRMnad1Biodiversity - تنوع زیستیReforestation - جنگل زراعیInter simple sequence repeat - دنباله ای اینتر را تکرار کنیدbefore present - قبل از حضورpolymerase chain reaction - واکنش زنجیره ای پلیمرازPCR - واکنش زنجیرهٔ پلیمرازNeighbor joining - پیوستن به همسایهPinus sylvestris L. - کاج sylvestris به L.
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
بوم شناسی، تکامل، رفتار و سامانه شناسی
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چکیده انگلیسی
Alpine and Northern Apennine populations of Pinus sylvestris collected from eight different Italian sites were analyzed by mitochondrial nadI intron and InterSimple Sequence Repeat (ISSR) markers, in order to describe the natural level of genetic variability and to clarify their genetic relationships. The small Northern Apennine populations are the southernmost populations of this conifer in Italy. All the analyzed populations were spontaneous and reforested areas were excluded. The analysis of the polymorphisms in the nad 1 intron sequence confirmed that the Italian P. sylvestris populations have the same mitotype (mitotype a) as the Central European ones. In the genomic ISSR analysis the proportion of shared alleles between the individuals showed the highest degree of differentiation between French and Italian populations and a divergence between the Alpine and Apennine populations. Alpine populations showed a higher genetic variability (GD 0.310±0.0252) than Apennine samples (GD 0.217±0.019). In addition, the individuals from the Apennines did not show a clear population structure, suggesting a common genetic constitution of Apennine P. sylvestris. It is likely that this constitution is the result of a progressive genetic isolation between the Alpine and the Northern Apennine populations from the early Holocene. The genetic constitution of the Northern Apennine populations suggests the opportunity of a management where in situ conservation of such small populations could be coupled to their use as sources of suitable local reforesting materials.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Flora - Morphology, Distribution, Functional Ecology of Plants - Volume 201, Issue 6, 18 September 2006, Pages 468-476
Journal: Flora - Morphology, Distribution, Functional Ecology of Plants - Volume 201, Issue 6, 18 September 2006, Pages 468-476
نویسندگان
M. Labra, F. Grassi, S. Sgorbati, C. Ferrari,