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共62条，第1-62条
Plant Sciences 166 Genetics & Heredity 116 Evolutionary Biology 95
Biochemistry & Molecular Biology 58 Multidisciplinary Sciences 39 Plant Sciences; Evolutionary Biology 19
Ecology 18 Environmental Sciences & Ecology 11 Biotechnology & Applied Microbiology 9
生物科学::植物学 9 Biochemistry & Molecular Biology; Evolutionary Biology; Genetics & Heredity 7 Science & Technology - Other Topics 7
Agriculture 6 生物科学::生物化学 5 Biochemistry & Molecular Biology; Plant Sciences 4
Biodiversity & Conservation 4 Evolutionary Biology; Genetics & Heredity 4 Biodiversity Conservation 3
Biology 3 Cell Biology 3 Chemistry, Medicinal 3
Forestry 3 Geography, Physical 3 Medicine, Research & Experimental 3
Multidisciplinary 3 Pharmacology & Pharmacy 3 生物学::生物化学与分子生物学 3
生物科学::分子生物学 3 Biophysics 2 Chemistry 2
Geology 2 Meteorology & Atmospheric Sciences 2 Physical Geography 2
植物学 2 物理化学 2 生物学::细胞生物学 2
生物科学 2 Agronomy 1 Agronomy; Plant Sciences 1
Biochemical Research Methods; Plant Sciences 1 Biochemistry & Molecular Biology; Ecology; Evolutionary Biology 1 Biodiversity Conservation; Genetics & Heredity 1
Biology; Multidisciplinary Sciences 1 Conservation genetics of L. decora: The nucleotide sequences from three chloroplast DNA (cpDNA) regions (the rpl16 intron, trnQ-5’rps16 intergenic spacer and rpl32-trnL intergenic spacer) and two nuclear gene (GAPDH and GBSSI) were selected to characterize the genetic structure and phylogeography of this species. Eleven populations were sampled across the distribution range of L. decora in China. Low levels of cpDNA genetic diversity were found in this species and within populations, with the identification of 2 haplotypes in a total of 2745 bp (cpDNA: π = 0.00102, Hd = 0.468, HT = 0.480), while the levels of genetic diversity revealed by the nuclear gene GAPDH and GBSSI (GAPDH: π = 0.00237, Hd = 0.773, HT = 0.807; GBSSI: π = 0.00167, Hd = 0.751, HT = 0.790) were relatively high, indicating that random losses of genetic polymorphisms from populations may have occurred recently. Relatively high genetic differentiation for both markers (cpDNA: GST = 0.899, FST = 0.893; GAPDH: GST = 0.309, FST = 0.432; GBSSI: GST = 0.274, FST = 0.263) were detected at the wide-species level. Two cpDNA haplotypes, twelve GAPDH haplotypes and ten GBSSI haplotypes were recovered, respectively. Almost every population except the population SP was fixed for one cpDNA haplotype, causing no variation within the populations. Several nuclear haplotypes were distributed widely in most populations. These results may be mainly explained by long-term fragmentation and the limited gene flow caused by geographic isolation among populations. The mismatch distribution analyses and neutrality tests provided no evidence for a recent population expansion in L. decora. The time of all GAPDH haplotypes coalesced to the most recent common ancestor was dated to between 0.46 (95% CI 0.14-0.89)-0.65 (95% CI 0.18-1.22)mya, which predates the LGM. In situ shrinking or extinction might have occurred to L. decora during the glacial ages and L. decora populations did not retreat to common refugia or migrated backwards. Based on the genetic diversity and uniqueness of the populations, conservation strategies are discussed for this endangered species.2. 1 Forestry; Genetics & Heredity; Horticulture 1
Geosciences, Multidisciplinary 1 Horticulture 1 Life Sciences & Biomedicine - Other Topics 1
Marine & Freshwater Biology 1 Materials Science, Paper & Wood 1 Medicine, Legal 1
Microbiology 1 Paleontology 1 Plant Sciences; Chemistry, Medicinal; Pharmacology & Pharmacy 1
主要研究方向::海洋生物学 1 地球科学::海洋科学::海洋生物学 1 地理学::自然地理学 1
生物学::植物学::植物生理学 1 生物科学::遗传学 1 生物资源::代谢物组学 1
生物资源::功能基因组 1 生物资源::能源植物资源 1