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Genetic diversity of an endangered aquatic plant, Potamogeton lucens subspecies sinicus
Uehara, K.; Tanaka, N.; Momohara, A.; Zhou, Z.-K. (2006). Genetic diversity of an endangered aquatic plant, Potamogeton lucens subspecies sinicus. Aquat. Bot. 85(4): 350-354. https://dx.doi.org/10.1016/j.aquabot.2006.06.008
In: Aquatic Botany. Elsevier Science: Tokyo; Oxford; New York; London; Amsterdam. ISSN 0304-3770; e-ISSN 1879-1522
Peer reviewed article  
Beschikbaar in  Auteurs 
Trefwoorden
    Conservation
    Endangered species
    Genetic diversity
    Japan, Honshu, Chiba Prefect., Teganuma L.
    Rapd
    Potamogeton lucens
    Zoet water
Author keywords
    AMOVA; P lucens var. tegantanensis; RAPD; soil seed bank; geneticdiversity; conservation; endangered species
Auteurs  Top 
  • Uehara, K.
  • Tanaka, N.
  • Momohara, A.
  • Zhou, Z.-K.
Abstract
    The genetic diversity of the species, Potamogeton lucens subsp. sinicus var. teganumensis, which is critically endangered in Japan, was investigated. This species now occurs in only two known localities in Japan. One is a native population (Oitoike population), but the other (Teganuma-Okahotto population) is found in a small artificial pond that was dug in 1998. It is considered that the Teganuma-Okahotto population grew from a soil seed bank. Based on RAPD variation, we compared the genetic diversity of the two populations of P. lucens var. teganumensis in Japan and one population of P. lucens subsp. sinicus var. sinicus in China. The Teganuma-Okahotto population showed RAPD variation, suggesting that it may be derived from more than one seed buried in old sediments. This population also had the highest value of Shannon's Information Index among the three study populations. This finding suggests that seeds buried in sediments can contain genetic variability, and may be used to conserve the genetic diversity of rare and endangered plants.
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