Data from: Multispecies genetic structure and hybridization in the Betula genus across Eurasia ...

• Main Authors: Tsuda, Yoshiaki, Semerikov, Vladimir, Sebastiani, Federico, Vendramin, Giovanni Giuseppe, Lascoux, Martin
• Format: Dataset
• Language: English
• Published: Dryad 2016
• Subjects: Betula maximowicziana; Betula nana; Betula pubescens; Betula ermanii; Betula pendula; Betula platyphylla; Holocene; modern samples; Iceland
• Online Access: https://dx.doi.org/10.5061/dryad.h0h3t; https://datadryad.org/stash/dataset/doi:10.5061/dryad.h0h3t

Boreal and cool temperate forests are the major land cover of northern Eurasia, and information about continental-scale genetic structure and past demographic history of forest species is important from an evolutionary perspective and has conservation implications. However, although many population genetic studies of forest tree species have been conducted in Europe or Eastern Asia, continental-scale genetic structure and past demographic history remain poorly known. Here, we focus on the birch genus Betula, which is commonly distributed in boreal and cool temperate forests, and examine 129 populations of two tetraploid and four diploid species collected from Iceland to Japan. All individuals were genotyped at seven to 18 nuclear simple sequence repeats (nSSRs). Pairwise math formula among the six species ranged from 0.285 to 0.903, and genetic differentiation among them was clear. structure analysis suggested that Betula pubescens is an allotetraploid and one of the parental species was Betula pendula. In ... : The genotype files of multiple birch species in EurasiaTsuda_Betula_sampleInfo: This file includes a list of population code, name, country, longitude (E) and latitude (N) which are corresponding to "Tsuda_Betula1594_7loc_STRUCTURE.txt". Tsuda_Betula_TetDip_FSTAT: The genotype data for software FSTAT. To analyze diploid-tetraploid combined data keeping allele frequencies, tetraploid genotypes were treated as two diploid individuals in FSTAT. Tsuda_Betula1594_7loc_STRUCTURE: The input file of STRUCTURE analysis based on 7loci of 1594 individuals. Missing data is coded as -9. Betula_Betula877_18loc: The input file of STRUCTURE analysis based on 18loci of 877 diploid individuals. Missing data is coded as -9. Tsuda_Betula_4spABC: The input fie of DIYABC based on 18 loci in 4 species.Tsuda_Betula_Eurasia_MolEcol2016.zip ...