From: John
Message: 30
Date: 2002-12-08
> Here are some excerpts from some assays I have recently read.I find this discussion fascinating as it tends to confirm what I know.
> Threelarge- scale phenomena have been inferred from the European
> archeological record( Fig. 1). In the Upper Paleolithic, around
> 40,000 years ago, Neandertal people were replaced by anatomically
> modern humans( 9), who moved in from the Levant, and settled in
> many areas of the continent( 13). At the latest glacial maximum,
> some 18,000 years ago, Northern and Central Europe were largely
> covered with glaciers. Human presence then seems restricted to the
> warmest regions, or glacial refugia( 14), and only later reappears
> more to the North, accompanying the retreat of the ice sheet; we
> shall refer to that postglacial phase as the Mesolithic period. The
> first evidence of food production( farming and animalbreedingi.
> e., theso-called Neolithic revolution) dates at around 10,000 years
> B.P. in the Levant( 15, 16). Gradually, Neolithic artifacts spread
> westwards and northwards, along much the same routes followed by
> the first Paleolithic colonization. Later demographic shifts
> affecting Europe as a whole are not documented. Thus, the overall
> pattern of European genetic diversity probably reflects the effects
> of the first Paleolithic colonization, or of Mesolithic
> reexpansions, or of the Neolithic demic diffusion, although the
> history of each local population must have been much more
> complicated than that.
> http://www.pnas.org/cgi/content/full/98/1/22/F1Interesting
> as it seems from the map the iberic people are associated with
> mesolithic reexpansions. i wonder if these people are basques or
> infact taurids.
>
> To the best of our knowledge, a global age of the European
> mitochondrial genealogy has never been published, and it would be
> very old anyway, certainly older than the arrival of Homo sapiens
> sapiens in Europe. However, groups of evolutionarily related
> alleles have been defined within the genealogy, and their age has
> been variously estimated between 52,500( haplogroup U5) and 6,500
> years(haplogroup J1a)( 23). The fact that the origin of most such
> haplogroups predates the origin of farming has been taken as
> evidence that the European mitochondrial pool comes essentially
> from populations that were already settled in Europe before the
> Neolithic period( ref. 24, and references therein). The fact that
> the age of some haplogroups, and hence of the entire genealogy,
> predates the arrival of Homo sapiens sapiens in Europe has not
> received much attention.
> Genetics and the population history of Europe Guido Barbujani* andIt is interesting that the spread of Nomadic pastoralism as a form of
> Giorgio Bertorelle 22 25 u PNAS u January 2, 2001 u vol. 98 u no.1
>
> farming and anima l domestication are recent phenomena occuring
> from 10000 years before present and onward. farming arose
> independently on several parts of the world including in a region
> in the middle east known as fertile crescent which extends from
> israel through northern syria to western iran. from this region
> agriculture expanded in both western and eastern directions. the
> spread of farming economy towards east into the area from iran to
> india started a little later between the sixth and fifth millenia
> B.c. the neolithic revolution in the iranian region and the indus
> valley reached its zenith by 6000 yeas before present. and involved
> strong urban civilizations such as the sumerian the elamite and
> harappan. another major innovation probably later than agriculture
> was the domestication of animals which is thought to have led to
> dramamatic population extensions in eurosia. pastoral nomadism
> developed in the grasslands of central asia east of the volga don
> region as well is in southeastern europe opening up the possibility
> of rapid movements of large population groups. the spread of these
> new technologies have been associated with the dispersal of
> dravidian and indoiranian languages in southern asia(renfrew 1987;
> cavalli sforza 1988) spesifically elamodravidinian languages(ruhlen
> 1991) which may have originated in the elam province(zagros
> mountains southwestern iran)are now confined to southeastern india
> and to some isolated groups in pakistan and northern india. it is
> hypothesized that the protoelamodravidinain language spoken by the
> elamites in southwestern iran spread eastward with the movement of
> farmers from this region.(cavalli-sforza et al 1994); renfrew
> 1996).
> A later episode the arrival of pastoral nomads from central asianI feel you are spot on here. You might like to check out the
> steppes to the iranian plateau,~4000 years bpd(before presnt day)
> brought with it the indoiranian branch of ÝE language family, which
> eventually replaced dravidian languages in iran and most of
> pakistan and northern india perhaps by an elite dominance process.
> of these arian peoples coincided with the decadence of importantInteresting!
> neolithic cultures such as the harappan civilization by ~~3000,4000
> years bpd. two chrosomal linages are described hg9 hg3 depending on
> the analysis of 11 biallelic markers( sry-1532,2627,8299, yap,
> sY81,12f2, M9, 92R7,LLY22g, Tat and RPS4y) but the frequency for
> each of the haplotypes for two clines are not given in details but
> as two major clines. Hg9 defined by the 12f2 deletion is largely
> proposed to caucasoid populations with its largest frequencies
> being found in middle eastern populations.
> hg3 is defined by a back mutaiton atsry1532 is virtually absentThis confirms the thesis I have presented above regarding the spread
> from african eastern asian and native american populations and found
> in highest frequencies in central asia. russia %50, altai %52. with
> a decreasing frequency cline westward into europe. this data
> suggests that central asia is the origin of this marker.
> the distribution of hg3 in iran shows marked difference between
> western and eastern provinces southwestern caspian %3, eastern
> provinces %31 with a decreasing frequency cline towards india,
> pakistan %32, northern india %26. this supports the idea that ÝE
> speakers spread from central asia via eastern caspian route as weel
> as india.hg9 is dated 14800 and hg3 is dated 7500 yeras from
> present.
> y chrosome lineage trace diffusion of people and language in
> southwestern asia am journal hum genet 537 542.
>
> affinities among the vocabularie and morphologies of many euroasian
> languages have led to the hypothesis that they drive from a common
> ancestor.renfrew proposed that nostratic was spoken by populations
> of near east more than 10000 years ago. the ability to produce
> foodincreased the population densities.population then expanded
> outward in four major wawes with each wawe propagating farming
> along with a protolanguage from which ÝE, elamodravidian,
> afroasiatic and altaic later developed. if the nostratic dd model
> is correct two bilological consequences are to be expexted. i.
> genetic vraince among should be larger in the NDD than in other
> linguistic languages. indeed other evolutionary pressures being
> equal the former received from immigrant farmers different
> proportions of novel alleles depending on their location along the
> routes of dispersal. in thr NDD families one should observe clines
> radiating away from the near eeast analogus to those that allowed
> identification of demic diffusion in europe. at the glyoxalase
> locus approximately longitudianl clines are evident for populations
> speaking indoeuropean, alamodravidinian and altaic languages but
> not for afroasiatic speakers.
> there is significant overall departurew from chance expectationsSee my comments above.
> for austric but not for uralic, caucasian and sinotibetean.
>
> the longitudinal gradients observed observed for austric cannot be
> due to demic diffusion from the near east because of two or three
> cases they do not emcompass iran and indian subcontinent. there may
> be some gradients in the NDD groups may also reflect processes
> other than neolithic demic diffusion of N. for afroasiatic the
> answer is not obvious. there five gradients are consistent with
> NDD. but overall significance is not higher than among austric
> speakers. contrary to what is stated by NDD model some linguists
> claim that afroasiatic spread from africa to asia.other processes
> partly overlapping with it may have played a grater role. as a
> whole demic diffusion occur within nostratic family farming and
> atleast three language familes must have spread together.
> one could envisage the possiblity that the gradients result fromIn actual fact Catal Huyuk is probably too late for the associations
> founder effects occuring earlier during the initial colonization of
> euroasia by homo sapiens sapiensalso starting from near east.
> howerver the correspondence between nostratic language family and
> regions of clinal variation would also imply these familes
> originated in the early paleolithic. few linguists would be ready
> to root current linguistic differences in so distant times. best
> estimates of origin are catal huyuk(turkey) for ÝE, jericho for
> afroasiatic, ali kosh (iraq) for indoeuropean and elamo-
> dravidian, caucasian, sinotibetean and austric and jetuin
> (turkmeania) for altaic and uralic.
> there is a map aa for north africa, Ýe on the continetal europe, urThanks for your posting up of this, it is *VERY* interesting.
> for the northest scandinavia and northwest asia, altaic from
> turkmenia to most of the asia until the almost chinese wall, indian
> and elamodravidian for iran and india.