Could I2a1b haplogroup be related to the incredible sport results of dalmatian Croats?

[Dalmatinac]

There is a very high frequency of world champions and golden medalists coming from the small croatian region of Dalmatia and western Herzegovina, a region of Bosnia and Herzegovina which is predominantly inhabited by ethnic Croats. Since these two groups are very similar in dialect, traditions and physical appearance I won't split them apart. These two regions combined have population of about 1.3 million people, vast majority of Croat ethnicity (~90%), but nevertheless the number of world class athletes is astonishing: Ivano Balić, Goran Ivanišević, Janica Kostelić, most of Croatia's winning davis cup team (Marin Čilić, Borna Ćorić...) and handball winning teams, Stipe Miočić, Janica Kostelić, Sandra Perković, Blanka Vlašić, Šime Fantela, 9 out of 11 croatian fooball team players who won silver medal in Russia including Luka Modrić who is expected to win a Golden Ball, Dražen Petrović, Mate Parlov... just to name a few and not to mention that croatian city of Split holds the record in the number of olympic medals per capita. Not all of these athletes were born there of course, but what they do have in common, apart from the fact that they are world champions in their sport, is the fact that their roots come from the very small area - within a circle with a radius of 100 km at most.

I certainly do not know genetic testing results of those people, and probably they haven't done it at all, but my research has led me to believe that most of them, if not all, belong to I2a1b haplogroup. I base this conclusion on the fact that I2a1b frequency is by far the greatest in this region: It can be found among 60-65% of dalmatian Croats and among 70% of Herzegovian Croats - a frequency nowhere else to be seen. Now, since Croatia is a relatively poor country which invests in sports very modest amounts of money, a country without normal sporting facilities such as football pitches, athletic halls etc, the question arises: Can it really be due to genetic factors or this is just a matter of coincidence ? I want to hear your opinion.

[JQP4545]

I2a1b could be related to height, but Croatians are generally tall regardless of which region of the country and in soccer height isn't so important. I don't think your Y haplogroup has much influence on phenotypic traits. Consider if you cross breed a male golden retriever with a female rottweiler and they produce a male and then that male mixes with a female rottweiler and they produce a male and that male mixes with a female rottweiler and so on and so forth........will a male that is, say, 100 generations down the line going to inherit any phenotypic traits from the y chromosome he received from his 100th great grandfather?

Maybe it is the warmer climate that is conducive to training for sports.

[Bosniensis]

I would be great sportist, but I am not heheuhe