PHYLOGEOGRAPHY, POPULATION DEMOGRAPHY AND COLONIZATION HISTORY OF GREY-SIDED VOLE (MYODES RUFOCANUS) WITH SPECIAL REFERENCE TO PLEISTOCENE REFUGIUMS Tat’yana.

Presentation on theme: "PHYLOGEOGRAPHY, POPULATION DEMOGRAPHY AND COLONIZATION HISTORY OF GREY-SIDED VOLE (MYODES RUFOCANUS) WITH SPECIAL REFERENCE TO PLEISTOCENE REFUGIUMS Tat’yana."— Presentation transcript:

1 PHYLOGEOGRAPHY, POPULATION DEMOGRAPHY AND COLONIZATION HISTORY OF GREY-SIDED VOLE (MYODES RUFOCANUS) WITH SPECIAL REFERENCE TO PLEISTOCENE REFUGIUMS Tat’yana V. Petrova, A.A.Lissovskiy, E.N. Dokuchaev, N.I. Abramson. MAPEEG – 2009 INTERNATIONAL MEETING

2 PLEISTOCENE GLACIATIONS Population isolation in separate glacial refugia is reflected in divergence and intraspecific differentiation ??? Absence of differenciation induced with periodical species range shifts and population mixing

3 Material collection 244 voles from 71 locality 229 cytochrome b sequences (37 sequences from GenBank) 77 SRY sequences (14 sequences from GenBank)

4 NJ – Kimura 2-parameter 2000 replicates 97

5 Haplotype median-joining network

6 SRY haplotypes distribution G F C C D A E B

7 Colonization history and population demography

8 Sakhalin and Hokkaido Islands population demography «founder effect» several colonizations ? not enough time for the genetic drift ? Sakhalin IslandHokkaido Island According to SRY data Islands are genetically identical, but cytochrome b analysis shows us great differences. It may be the result of more active dispersion of males compared to females.

9 Acknowledgements We are very grateful to all the collectors who gave us material for the analysis: Boiko N.S., Golenischev F.N., Lebedev V.S., Obolenskaya E.V., Lopatina N., Rakitin S.B., Stekolnikov A.A., Sheftel’ B.I., Schipanov N., Stekolnikov A.A., Mukhacheva S.V., Abramov A.V., Mukhacheva S.V., Abramov A.V., Judith Eger, Kartavtseva I.V., Borisov O.M., Judith Eger, Kartavtseva I.V., Borisov O.M., Burskaya V., Red’kin Ya., Pozhidaeva N. Burskaya V., Red’kin Ya., Pozhidaeva N. We thank all the ZIN RAS «Taxon» laboratory staff and especially Kostygov A.Yu. for sequencing. This work was carried out with the financial support of the RFBR Grant № 06-04-49294-а.

10 Thank You for attention! =)