Analysis of information sources in references of the Wikipedia article "Tajiks" in English language version.
There were about 5,000,000 in Afghanistan, where they constituted about one-fifth of the population.
{{cite journal}}: CS1 maint: numeric names: authors list (link) "The Historical Era gene flow derived from the Eastern Steppe with the representative of Mongolia_Xiongnu_o1 made a more substantial contribution to Kyrgyz and other Turkic-speaking populations (i.e., Kazakh, Uyghur, Turkmen, and Uzbek; 34.9–55.2%) higher than that to the Tajik populations (11.6–18.6%; fig. 4A), suggesting Tajiks suffer fewer impacts of the recent admixtures (Martínez-Cruz et al. 2011). Consequently, the Tajik populations generally present patterns of genetic continuity of Central Asians since the Bronze Age. Our results are consistent with linguistic and genetic evidence that the spreading of Indo-European speakers into Central Asia was earlier than the expansion of Turkic speakers (Kuz′mina and Mallory 2007; Yunusbayev et al. 2015)."{{cite journal}}: CS1 maint: numeric names: authors list (link) "The Historical Era gene flow derived from the Eastern Steppe with the representative of Mongolia_Xiongnu_o1 made a more substantial contribution to Kyrgyz and other Turkic-speaking populations (i.e., Kazakh, Uyghur, Turkmen, and Uzbek; 34.9–55.2%) higher than that to the Tajik populations (11.6–18.6%; fig. 4A), suggesting Tajiks suffer fewer impacts of the recent admixtures (Martínez-Cruz et al. 2011). Consequently, the Tajik populations generally present patterns of genetic continuity of Central Asians since the Bronze Age. Our results are consistent with linguistic and genetic evidence that the spreading of Indo-European speakers into Central Asia was earlier than the expansion of Turkic speakers (Kuz′mina and Mallory 2007; Yunusbayev et al. 2015)."{{cite journal}}: CS1 maint: numeric names: authors list (link) "The Historical Era gene flow derived from the Eastern Steppe with the representative of Mongolia_Xiongnu_o1 made a more substantial contribution to Kyrgyz and other Turkic-speaking populations (i.e., Kazakh, Uyghur, Turkmen, and Uzbek; 34.9–55.2%) higher than that to the Tajik populations (11.6–18.6%; fig. 4A), suggesting Tajiks suffer fewer impacts of the recent admixtures (Martínez-Cruz et al. 2011). Consequently, the Tajik populations generally present patterns of genetic continuity of Central Asians since the Bronze Age. Our results are consistent with linguistic and genetic evidence that the spreading of Indo-European speakers into Central Asia was earlier than the expansion of Turkic speakers (Kuz′mina and Mallory 2007; Yunusbayev et al. 2015)."{{cite journal}}: CS1 maint: numeric names: authors list (link) "The Historical Era gene flow derived from the Eastern Steppe with the representative of Mongolia_Xiongnu_o1 made a more substantial contribution to Kyrgyz and other Turkic-speaking populations (i.e., Kazakh, Uyghur, Turkmen, and Uzbek; 34.9–55.2%) higher than that to the Tajik populations (11.6–18.6%; fig. 4A), suggesting Tajiks suffer fewer impacts of the recent admixtures (Martínez-Cruz et al. 2011). Consequently, the Tajik populations generally present patterns of genetic continuity of Central Asians since the Bronze Age. Our results are consistent with linguistic and genetic evidence that the spreading of Indo-European speakers into Central Asia was earlier than the expansion of Turkic speakers (Kuz′mina and Mallory 2007; Yunusbayev et al. 2015)."{{cite web}}: CS1 maint: multiple names: authors list (link)There were about 5,000,000 in Afghanistan, where they constituted about one-fifth of the population.
{{cite web}}: CS1 maint: multiple names: authors list (link){{cite journal}}: CS1 maint: numeric names: authors list (link) "The Historical Era gene flow derived from the Eastern Steppe with the representative of Mongolia_Xiongnu_o1 made a more substantial contribution to Kyrgyz and other Turkic-speaking populations (i.e., Kazakh, Uyghur, Turkmen, and Uzbek; 34.9–55.2%) higher than that to the Tajik populations (11.6–18.6%; fig. 4A), suggesting Tajiks suffer fewer impacts of the recent admixtures (Martínez-Cruz et al. 2011). Consequently, the Tajik populations generally present patterns of genetic continuity of Central Asians since the Bronze Age. Our results are consistent with linguistic and genetic evidence that the spreading of Indo-European speakers into Central Asia was earlier than the expansion of Turkic speakers (Kuz′mina and Mallory 2007; Yunusbayev et al. 2015)."