New study on Estonians (pub. August) investigates the relationship between ancient European ancestry and modern genetic traits: https://www.biorxiv.org/content/10.1101/2021.08.03.454888v1.full.pdf

WHG ancestry linked to:
- light eyes
- brown hair
- decreased height, hip circumference, cholesterol, probability of dark eyes
- increased BMI, caffeine consumption, creatine production

EEF ancestry linked to:
- light eyes
- blond hair
- decreased waist/hip ratio, heart rate, probability of black hair

Steppe EMBA (Yamnaya) ancestry linked to:
- dark eyes
- dark hair
- strong build
- increased height, waist and hip circumference, cholesterol
- decreased caffeine consumption, heart rate

Europa ca. 1500 (🇳🇱)

Published works indicate that R1b was a predominant haplogroup from the late Neolithic to the early Bronze Age, notably in the Bell Beaker and Yamnaya cultures (Allentoft et al., 2015; Haak et al., 2015; Lee et al., 2012; Mathieson et al., 2015). Nearly 100% of the Afanasievo men we typed belonged to the R1b1a1a subhaplogroup and, for at least three of them, more precisely to the L23 (xM412) subclade. (…)

(…) our results therefore support the hypothesis of a genetic link between Afanasievo and Yamnaya. This also suggests that R1b was indeed dominant in the early Bronze Age Siberian steppe, at least in individuals that were buried in kurgans (possibly an elite part of the population).

Hollard et al. (2018)