Spatial autocorrelation within a korean population ofRaphanus sativus var.hortensis f.raphanstroides |
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Authors: | Man Kyu Huh |
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Institution: | (1) Department of Biology Education, Pusan National University, 609-735 Pusan, Korea |
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Abstract: | Spatial autocorrelation was applied to microgeographic variations in Korean wild radish,Raphanus sativus var.hortensis Baker f.raphanstroides. Separate counts of each type of join (combination of genotypes at a single locus) for each allele, and for each distance
class of separation, were tested for significant deviation from random expectations by calculating the Standard Normal Deviation.
Moran’s / was significantly different from the expected value in 16 of 112 cases (14.3%). Eleven of these values (9.8%) were
negative, indicating genetic dissimilarity among pairs of individuals in the eight distance classes. Populations of wild radish
are small in Korea and are distributed with tractors used for fishing. Occasional cutting of seed-bearing stems as fodder
for animals also may bring a high level of gene flow. Thus, disturbance by many anglers, as well as by farmers, may contribute
to the fact that the wild radish population of Onsan is unusual in lacking spatial genetic structure. |
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Keywords: | Raphanus sativus var hortensis Baker f raphanstroides spatial autocorrelation standard normal deviation (SND) |
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