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Filename: controllers/Detail.php
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Filename: controllers/Detail.php
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Filename: controllers/Detail.php
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Message: file_get_contents(https://...@gmail.com&api_key=61f08fa0b96a73de8c900d749fcb997acc09): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests
Filename: helpers/my_audit_helper.php
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Premise Of The Study: Drosera peltata var. nipponica, an element of the East Asia warm-temperate vegetation, and D. rotundifolia, a widely distributed boreal species, reach one of their northernmost and southernmost limits, respectively, on the Korean Peninsula. Because the Last Glacial Maximum (LGM)-Holocene dynamics of warm-temperate and boreal paleovegetation differed considerably on the Peninsula, the population history of these two sundews is expected to be different, leaving differential imprints in their genetic structure.
Methods: We investigated population genetic structure of D. peltata var. nipponica and D. rotundifolia in South Korea (10 populations of each for 20 allozyme loci) to infer their population history in this region. In addition, we compared the genetic variation harbored in the two sundews to those reported for other carnivorous and wetland plants.
Key Results: Drosera peltata var. nipponica showed no genetic diversity, whereas D. rotundifolia exhibited extremely low within-population variation (He = 0.005) and considerable among-population divergence (FST = 0.817).
Conclusions: Our results suggest that extant populations of D. peltata var. nipponica likely originated from a single ancestral population from southern Japan or southern China through postglacial dispersal. On the contrary, D. rotundifolia probably survived the LGM in situ, with extant populations derived from either one or several small source populations. We argue that separate conservation strategies should be employed, given that the two taxa have different ecological and demographic traits and harbor different levels of genetic diversity.
Download full-text PDF |
Source |
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http://dx.doi.org/10.3732/ajb.1200486 | DOI Listing |
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