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. 2021 Feb 3;12:604823. doi: 10.3389/fgene.2021.604823

TABLE 1.

Genetic diversity metrics estimated within each one of the eight Chinese cattle breeds and Datong yak.

Yunnan Humped Dengchuan Wenling Humped Wannan Sanhe Mongolian Hazake Xinjiang Brown Datong Yak
Species Bos taurus sspp.* Bos taurus sspp.* Bos taurus sspp.* Bos taurus sspp.* Bos taurus taurus Bos taurus taurus Bos taurus taurus Bos taurus taurus Bos grunniens
Purpose Work Work Work Work Various Various Various Meat/Dairy Various
Adaptation Heat Heat Heat Heat Cold Cold Cold Cold Cold
Coat color Yellow Yellow Yellow Yellow Red and white Mixed Mixed Brown Black
Coat color pattern Solid with light and dark pattern Solid with light and dark pattern Solid with light and dark pattern Solid with light and dark pattern Spotted Mixed Mixed Solid with light and dark pattern Solid
Coat hair length Short Short Short Short Long in winter Long in winter Long in winter Long in winter Long
Sample size 16 31 31 31 32 35 16 35 45
PSNP 0.659 0.894 0.783 0.839 0.988 0.992 0.964 0.949 0.197
HO 0.166 0.256 0.186 0.210 0.366 0.351 0.357 0.329 0.023
HE 0.170 0.258 0.185 0.211 0.358 0.357 0.346 0.318 0.021
D 0.149 0.216 0.155 0.179 0.287 0.290 0.285 0.256 0.016
LD 0.189 (0.112) 0.136 (0.089) 0.198 (0.085) 0.159 (0.081) 0.183 (0.123) 0.145 (0.114) 0.168 (0.109) 0.206 (0.091) 0.545 (0.109)
FHOM ± SD −0.113 (0.045) −0.097 (0.031) −0.158 (0.022) −0.155 (0.031) 0.453 (0.018) 0.326 (0.021) 0.357 (0.021) 0.421 (0.067) 0.024 (0.003)
FEH ± SD 0.504 (0.064) 0.233 (0.045) 0.442 (0.102) 0.371 (0.067) −0.095 (0.040) −0.049 (0.054) −0.066 (0.009) 0.017 (0.068) 0.935 (0.008)
FU ± SD 0.220 (0.050) 0.0942 (0.035) 0.174 (0.053) 0.139 (0.038) 0.181 (0.053) 0.137 (0.057) 0.100 (0.011) 0.228 (0.070) 0.480 (0.004)
FROH ± SD 0.028 (0.003) 0.011 (0.002) 0.029 (0.004) 0.012 (0.001) 0.002 (0.001) 0.022 (0.005) 0.001 (0.001) 0.034 (0.009) 0.087 (0.011)

Adap., adaptation; Samp., sample size; PSNP, proportion of polymorphic SNP; HO and HE, expected and observed heterozygosity, respectively; D, average pairwise genetic distance; LD, average linkage disequilibrium between adjacent SNP; SD, standard deviation; FHOM, FEH, FU, and FROH, inbreeding coefficients based on excess of homozygosity, on the observed versus expected number of homozygous genotypes, on the correlation between uniting gametes, and on the runs of homozygosity, respectively. *Mixed composition (Bos taurus taurus × Bos taurus indicus).