Περίληψη:
In order to attain a finer reconstruction of the peopling of southern
and central-eastem Europe from the Levant, we determined the frequencies
of eight lineages internal to the Y chromosomal haplogroup J, defined by
biallelic markers, in 22 population samples obtained with a fine-grained
sampling scheme. Our results partially resolve a major multifurcation of
lineages within the haplogroup. Analyses of molecular variance show that
the area covered by haplogroup J dispersal is characterized by a
significant degree of molecular radiation for unique event polymorphisms
within the haplogroup, with a higher incidence of the most derived
sub-haplogroups on the northern Mediterranean coast, from Turkey
westward; here, J diversity is not simply a subset of that present in
the area in which this haplogroup, first originated. Dating estimates,
based on simple tandem repeat loci (STR) diversity within each lineage,
confirmed the presence of a major population structuring at the time of
spread of haplogroup J in Europe and a punctuation in the peopling of
this continent in the post-Neolithic, compatible with the expansion of
the Greek world. We also present here, for the first time, a novel
method for comparative dating of lineages, free of assumptions of STR
mutation rates.
Συγγραφείς:
Di Giacomo, F
Luca, F
Popa, LO
Akar, N
Anagnou, N and
Banyko, J
Brdicka, R
Barbujani, G
Papola, F
Ciavarella,
G
Cucci, F
Di Stasi, L
Gavrila, L
Kerimova, MG and
Kovatchev, D
Kozlov, AI
Loutradis, A
Mandarino, V and
Mammi', C
Michalodimitrakis, EN
Paoli, G
Pappa, KI and
Pedicini, G
Terrenato, L
Tofanelli, S
Malaspina, P and
Novelletto, A
