Journal
JOURNAL OF PLANT RESEARCH
Volume 126, Issue 5, Pages 635-642Publisher
SPRINGER JAPAN KK
DOI: 10.1007/s10265-013-0554-6
Keywords
Complete genotyping; Conservation genetics; Endemic species; Microsatellite; Ogasawara (Bonin) Islands
Categories
Funding
- Japan Society for the Promotion of Science [20241056]
- Ministry of the Environment, Japan [D-0903]
- Grants-in-Aid for Scientific Research [20241056] Funding Source: KAKEN
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More than 3,000 species are listed as critically endangered worldwide, and various conservation measures such as habitat restoration, assisted reproduction and establishment of ex situ populations would be required to prevent their extinction. We determined the genotype of all 15 known wild clumps using nuclear microsatellite markers for Stachyurus macrocarpus var. prunifolius, a critically endangered shrub endemic to the Ogasawara (Bonin) Islands of Japan. In addition, the seedlings propagated from seeds taken from one wild clumps were genotyped. The results of complete genotyping showed that both wild and nursery populations had population-specific alleles. Two alleles were detected only in the nursery population, indicating the existence of undiscovered mature individuals in the wild. Four alleles were found only in the wild and were detected in two geographically isolated clumps, and this finding may propose that re-introduction and transplantation between different sites requires sensitive handling in terms of the conservation of evolutionary significant units. These results show that complete genotyping can provide essential genetic and ecological information for effective management of endangered species.
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