Pročaska malo i ja s GPT-om pa mi zanimljive odgovore daje iako to pripisujem drugačijem bazenu izvora iz kojeg on crpi svoje odgovore nego šta je to u tvom slučaju:
Let’s explore genetic distance using F<sub>ST</sub> and G25 (Global‑25) Euclidean distances, focusing on how Croatians, Bosnians (Bosniaks), and Serbs compare to each other and to neighboring populations. We’ll also look at regional G25 insights within these countries.
1. Genetic Distance (F<sub>ST</sub> & Euclidean)
F<sub>ST</sub> from Autosomal Data
Studies (e.g.
Standing at the Gateway to Europe) show:
- Croatians & Bosnians cluster tightly, overlapping with East‑Central Europeans like Hungarians, Slovenians, and Czechs.
- Serbians and Montenegrins occupy an intermediate position between this western cluster and Eastern Balkan groups (e.g. Macedonians, Bulgarians)
- The F<sub>ST</sub> values between Croats and Bosnians are extremely low—indicating very high genetic similarity, even tighter than between Croatians and Slovenians
PCA & Network Analysis
The PCA (Principal Component Analysis) and Neighbor‑net based on F<sub>ST</sub> distances position the populations like this:
- Western South Slavs (Croats, Bosnians, Slovenians) form one tight cluster leaning towards Central European Slavs (e.g. Czechs, Slovaks, Hungarians).
- Serbs form a more central Balkan cluster, intermediate between the West‑slavs plus Western Balkan core and Eastern Balkans.
- Serbs are genetically between Croats/Bosnians and Macedonians/Bulgarians, reflecting a southern admixture component
2. G25 Euclidean Distance Insights
Euclidean Distances on G25
While specific numeric distances for Croats, Bosnians, and Serbs may vary by dataset, general trends from G25-based heatmaps and Reddit‑shared data suggest:
- Croatians and Bosnians often plot closest to each other, indicating minimal Euclidean distance on G25 coordinates.
- Serbs generally plot slightly southeast—they often show higher Southern Balkan (Thracian/Illyrian) input, placing them further from the Western cluster
Moreover, Bosnians sometimes plot as more
Northern Slavic than Serbs, especially when samples come from
central-north Bosnia—bringing them closer to Poles or Hungarians on G25.
3. G25 by Region Within Countries
Croatia (Regional Variation)
- Northern Croats (Kajkavian and Istria‑Slovenia region): Strong affinity to Slovenians and Hungarians; more Central European DNA.
- Dalmatians / South‑Croats (Split, Zadar): Plot closer to Bosnians and Serbs, showing more Balkan autochthonous ancestry (E‑V13 / I2a)
Bosnia and Herzegovina
- Central‑north Bosnia (central Bosniaks): Tend to cluster more Western — overlapping with Croatians.
- Eastern/southern Bosnia (Herzegovina, Romanija): Often shift slightly southwards but still closer to the Western cluster than Serbs.
Serbia
- Northern Serbia / Vojvodina: More Central European admixture, closer to Croats/Bosnians.
- South / Southeast (Herzegovina-border, Sandžak): More Southern Balkan admixture; these individuals often plot further from the Western South Slavic cluster.
4. Summary Table
| Comparison | Genetic Distance (F<sub>ST</sub>) | G25 Distance | Notes |
|---|
| Croats vs Bosnians | Extremely low (tight cluster) | Minimal | Very similar overall |
| Croats/Bosnians vs Serbs | Low–moderate | Slight shift | Serbs show more southern Balkan ancestry |
| Croats vs Serbs | Slightly greater than Croats‑Bosnians | Moderate | Croatian regional variation matters |
| Regional Croatia (North vs South) | Internal differentiation via F<sub>ST</sub> | North plots close to Hungarians; south closer to Bosnians | Kaikavian vs Shtokavian East-West differences |
Usout je dobia i podpitanje:
1. Who has the strongest Slavic signal on G25?
Bosnians (especially central-north)
- Generally show the highest similarity to East-Central European (Slavic) reference samples, even occasionally more “northern Slavic” than Serbs.
- Many Bosnians cluster tightly with Croatians and Slovenians, forming a “western South Slavic” group that inclines toward Poles, Czechs, and Hungarians
