GENETIC DIVERSITY OF RESTORED ENDANGERED SPECIES, PENTHORUM CHINENSE IN THE RIVERBED

Authors

  • Michiko Masuda
  • Fumitake Nishimura

Keywords:

Population size, Burial seeds, Restorelation, Endangered species, River management

Abstract

The Ministry of Land, Infrastructure and Transport has done the business of digging on the
river road to increase the flowing quantity of Ibi River every year since 2000. It is reported to the dug region
the Penthorum chinense populations which is the threatened species the restored in 2001. Digging is done
from 2000 to 2010 every year. Therefore, we investigated P. chinesne population of which extent to which
region grew. As a result, it was shown some the growth of the plant of 200 individuals in the 2002 digging
region, 4000 individuals in the 2001 digging region and 1000 individuals in the 2000 digging region, and so
on. Though it is thought that the population formed in 2000 is seed bank origin, whether the populations
formed in 2001 and later the burial seed origin or formed with the seed of an existing population, it is
uncertain. Then we sampled 8 populations of the species form these areas, and studied them for allelic
variation at 16 enzyme loci. There was no significant correlation between the actual population size and
genetic diversity parameters, suggesting that the effective population size was very small even for the large
populations. However, population that restored at the riverbed and population that approved on the
embankment were able to distinguish obviously in the populations that had been approved in 2002. As for the
population approved to the embankment, it was shown that genetic variation was very high in the population
approved to the riverbed thought it was hardly admitted.

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Published

2017-04-12

How to Cite

Michiko Masuda, & Fumitake Nishimura. (2017). GENETIC DIVERSITY OF RESTORED ENDANGERED SPECIES, PENTHORUM CHINENSE IN THE RIVERBED. GEOMATE Journal, 10(20), 1810–1814. Retrieved from https://geomatejournal.com/geomate/article/view/1946