Open access Genetic ancestry changes in Stone to Bronze Age transition in the East European plain, by Saag et al. bioRxiv (2020).
Interesting excerpts (emphasis mine):
Y-DNA chromosome haplogroup
(…) the Bronze Age Fatyanovo Culture individuals  maternal (subclades of mtDNA hg U5, U4, U2e, H, T, W, J, K, I and N1a) and paternal (chrY hg R1a-M417) lineages were ones characteristic of CWC individuals elsewhere in Europe. Interestingly, in all individuals for which the chrY hg could be determined with more depth (n=6), it was R1a2-Z93, a lineage now spread in Central and South Asia, rather than the
… Read the rest “R1a-Z93-rich Classical CWC-like Fatyanovo replaced Volosovo”
In the recent Linderholm et al. (2020), I preferred to interpret the finding of R1b-P310* among late niche (catacomb) grave groups of Lesser Poland as derived from Late PIE – Late Uralic contacts, through a much earlier intrusion of late Repin/early Yamnaya chieftains among Late Trypillians.
This is one of the few aspects of the books where I tried to offer my own contribution to the field, by combining the Indo-Uralic concept (which supports a distinct evolution of laryngeals for PIE and PU) with a modified, ‘layered’ use of Koivulehto’s controversial and irregular PIE laryngeal borrowing as PU … Read the rest “Indo-Iranian influence on West Uralic through the Catacomb culture”
The study of hydrotoponymy shows a prevalent initial Old European layer in central and northern Germany, too, similar to the case in Iberia, France, Italy, and the British Isles.
The recent paper on Late Proto-Indo-European migrations by Frederik Kortlandt relies precisely on this ancestral layer as described by Jürgen Udolph to support a Danubian expansion of North-West Indo-European with East Bell Beakers, identified as the Alteuropäische (Old European) layer that was succeeded by Germanic in the North European Plain.
The Proto-Germanic homeland
The following are excerpts are translated from the German original (emphasis mine) in Udolph’s Namenkundliche Studien … Read the rest “European hydrotoponymy (III): from Old European to Palaeo-Germanic and the Nordwestblock”
Open access The Arrival of Siberian Ancestry Connecting the Eastern Baltic to Uralic Speakers further East, by Saag et al. Current Biology (2019).
In this study, we present new genomic data from Estonian Late Bronze Age stone-cist graves (1200–400 BC) (EstBA) and Pre-Roman Iron Age tarand cemeteries (800/500 BC–50 AD) (EstIA). The cultural background of stone-cist graves indicates strong connections both to the west and the east [20, 21]. The Iron Age (IA) tarands have been proposed to mirror “houses of the dead” found among Uralic peoples of the Volga-Kama region .
(…) The 33 individuals included
… Read the rest “Baltic Finns in the Bronze Age, of hg. R1a-Z283 and Corded Ware ancestry”