Suurlähettiläs Ralph Enckell 16/12 1965

Kirje

Suutari Martti Räsänen 14/9 1956

Kirje

Professori Erkki Pystynen 8/12 1975

Kirje 8.12.1975

Valtiotieteen lisensiaatti John H. Hodgson 8/4 1963

Kirje

Maanviljelijä Jussi Olkinuora 11/12 1964

Kirje 11.12.1964

Varatuomari Ilmari Turja 3/2 1966

Kirje

Vuorineuvos Uolevi Raade 4/7 1972

Kirje 4.7.1972

Vuorineuvos Paavo Honkajuuri 20/4 1974

Kirje 20.4.1974

Pääjohtaja V.J. Sukselainen 7/1 1966

Kirje

Neiti Helka Honkanen 30/6 1973

Kirje 30.6.1973

Konttoripäällikkö Judit Nederström-Lunden 20/11 1973

Kirje 20.11.1973

Pääministeri Ahti Karjalainen 5/5 1971

Kirje 5.5.1971

Päätoimittaja Juha Nevalainen 4/9 1969

Kirje 4.9.1969

Phylogenetic structures of the Holarctic Sorex araneus group and its relationships with S-samniticus, as inferred from mtDNA sequences

The shrews of the Sorex araneus group, characterized by the sexual chromosome complex XY1, Y2 have been intensively studied by morphological, karyotypical, and biochemical analyses. Nevertheless, the phylogenetic relationships among the species belonging to the araneus complex are still under debate, as different approaches gave often contradictory results. In this paper, partial nucleotide sequences of the mitochondrial DNA cytochrome b gene (1011 bp) were determined for 6 species of the araneus group from Eurasia and North America. We also included in the data set the sequences of Sorex samniticus, whose relationships with the araneus group remain controversial. Three other species representing two major karyological groups were also examined. Both parsimony and distance trees strongly support the monophyly of the araneus group. Sorex sumniticus is significantly more closely related to the araneus complex than to the other species included in the analysis. Based on the branching pattern within the araneus group, an attempt has been made to reconstruct the colonization history of the Holarctic region.