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1 wrz 2016 · A pairwise p-distance matrix (Table S2) was generated to aid preliminary genus and species delimitation. Phylogenetic trees were constructed by using the software MEGA 7 (Newman et al.,...
23 kwi 2021 · In this major upgrade, MEGA has been optimized for use on 64-bit computing systems for analyzing bigger datasets. Researchers can now explore and analyze tens of thousands of sequences in MEGA.
24 maj 2017 · Studying isolation by distance can provide useful demographic information. To analyze isolation by distance from molecular data, one can use some kind of genetic distance or coalescent...
17 mar 2021 · A distance matrix has to satisfy additional properties in order to correspond to some weighted tree. In fact, there are two models that assume special constraints on the distance matrix: Ultrametric: For all triplets (a, b, c) of leaves, two pairs among them have equal distance, and the third distance is smaller; i.e. the triplet can be ...
1 mar 2002 · When populations can be defined a priori, one option is to analyze genetic “isolation by distance” (sensu Wright 1943) by plotting the genetic similarity (or distance) among population pairs as a function of the geographic distance between those pairs.
1 cze 2022 · The genetic distance between two individuals, d, is a product of the divergence time t = t 0 + t 1 + t 2 (as shown in fig. 1) and the substitution rate, μ , d = t μ . Notice that this method, like other phylogenetic methods, estimate d but cannot independently estimate t and μ .
1 kwi 2016 · Genetic distance is the degree of gene difference (genomic difference) between species or populations that is measured by some numerical method. Genetic distance measures have already been...
