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Biological sciences

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Genetic diversity and the genetic structure of natural populations of Chamaecyparis obtusa: implications for management and conservation

Article Abstract:

Natural populations of Chamaecyparis obtusa are investigated by using 51 cleaved amplified polymorphic sequence (CAPS) markers, which are developed from sequence-tagged sites (STS) in Cryptomenia jaconica. The analysis has shown that the small populations in western Japan and in Kanto district are more important, from a conservation perspective, than the populations in central Japan, because of their genetic divergence, relatively small sizes and restricted areas.

Japan, Analysis, Protection and preservation, Biological diversity, Biodiversity, Chameleons

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Effects of canopy gaps on the genetic structure of Camellia japonica saplings in a Japanese old-growth evergreen forest

Article Abstract:

The genetic structure of Camellia japonica saplings in different canopy conditions in an old growth forest is investigated to clarify canopy gap effects on genetic structure. It is found that canopy gaps may promote flowering and mating in an isolation-by-distance manner within canopy gaps and canopy gaps may promote seed production and resulting overlap in seed shadows may weaken fine-scale genetic structures.

Research and Development in the Physical, Engineering, and Life Sciences, Science & research, Plant Genetics, Research, Evergreens, Camellia, Camellias

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