2026-03-10T00:43:24Z https://kagawa-u.repo.nii.ac.jp/oai

oai:kagawa-u.repo.nii.ac.jp:00009306 2023-08-07T08:38:33Z 2:47:1189

香川県西讃地域の水系に基づいた大型水生植物ガガブタ Nymphoides indica (L.) Kuntze の遺伝的構造 Genetic structure of pond populations of an aquatic macrophyte Nymphoides indica (L.) Kuntze based on water systems of the western part of Kagawa Prefecture 柴山, 弓季 シバヤマ, ユキ Shibayama, Yuki open access Evaluating the genetic structure of organisms in the landscape exposed by human impacts may provide us to reveal the change of pattern of gene flow. I investigated the genetic structure of pond populations of an aquatic macrophyte Nymphoides indica based on water systems of the western part of Kagawa Prefecture by using microsatellite markers. Simpson's diversity index (D) showed the high value across populations, which means that most of each rarnet sampled has a unique genotype. The number of genotypes detected (G) significantly increased with sample size higher for dimorphic than monomorphic populations, indicating that seed production contributes to the maintenance of genotypic diversity. According to the PCoA (Principle Coordinate Analysis) based on DAS (Shared Allele Distance) among populations, I could not confirm the genetic structure of N. indica populations depended on water systems. AMOVA also shows that more than half of the variation in N. indica is observed within populations. I conclude that the N. indica populations were genetically isolated and were not affected by historical floodings. 香川生物学会 2011-06-10 http://purl.org/coar/access_right/c_abf2 jpn journal article VoR https://kagawa-u.repo.nii.ac.jp/records/9306 40018886236 AN00038146 0287-6531 香川生物 Bulletin of the Biological Society of Kagawa 38 41 51 https://kagawa-u.repo.nii.ac.jp/record/9306/files/AN00038146_038_L041.pdf application/pdf 1.2 MB