Structured Populations of Critically Endangered Yellow Water Lily (Nuphar shimadai Hayata, Nymphaeaceae)
Issued Date
2022-09-01
Resource Type
eISSN
22237747
Scopus ID
2-s2.0-85138628042
Journal Title
Plants
Volume
11
Issue
18
Rights Holder(s)
SCOPUS
Bibliographic Citation
Plants Vol.11 No.18 (2022)
Suggested Citation
Mantiquilla J.A., Lu H.Y., Shih H.C., Ju L.P., Shiao M.S., Chiang Y.C. Structured Populations of Critically Endangered Yellow Water Lily (Nuphar shimadai Hayata, Nymphaeaceae). Plants Vol.11 No.18 (2022). doi:10.3390/plants11182433 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/87460
Title
Structured Populations of Critically Endangered Yellow Water Lily (Nuphar shimadai Hayata, Nymphaeaceae)
Author(s)
Other Contributor(s)
Abstract
Yellow water lily (Nuphar shimadai Hayata) is a critically endangered species in Taiwan. Here, we examined genetic structures of four extant populations, WP, GPa, GPb and GPn, using 39 simple sequence repeat (SSR) markers. Positive genetic correlation was observed within 50 m, beyond which no correlation was detected due to isolation by distance according to Mantel correlogram. This suggests a significant genetic structuring of the species. Besides, multilocus genotype (MLG) analysis revealed that GPa was a panmictic population and the species’ putative center of origin. Genetic exchange was observed between GPa and GPb populations, which likely resulted from their geographic proximity. Nevertheless, there was a strong asymmetric migration detected from GPa to WP, but a recent genetic barrier prevented dispersal further northward (WP). Geneland estimated the best number of clusters as K = 2, where WP distinctly separated from the rest of the populations. In STRUCTURE output of K = 3, a third cluster was abundant only in WP. We suggest to consider GPn and WP as separate conservation units, being far from GPa. There is indeed a need to investigate these populations; as predicted, Ne = 1.6 to 3.0 is considered low and that may put the species at risk of extinction.