Association between index finger and
ring finger length ratios and polymorphism of homeobox A11 gene locus among
Ningxia college students

doi:10.16098/j.issn.0529-1356.2024.01.009

Abstract

Abstract:

Objective To investigate the association between the index finger and ring finger length ratio (2D∶4D) and of four loci (rs6461992, rs6968828, rs7801581, rs17427875) polymorphism of homeobox (HOX) A11 gene among Ningxia college students. Methods Digit camera was used to collect frontal hand photos of 667 Han college students (348 males and 319 females) from Ningxia province; Image analysis software was used to mark the anatomical points and measure finger lengths of the index and ring fingers of both hands; multiplex PCR was used to detect each locus polymorphisms of HOXA11 gene; statistical software was used to compare and analyze the differences and associations of 2D∶4D and gene polymorphisms between different genders. Results Among Ningxia Han college students, both left hand and right hand 2D∶4D were significantly higher in females than those of in males (all P<0.05), and there were no significant sex differences in right-left hand 2D∶4D; the genotypes and allele frequencies of rs7801581 locus of HOXA11 gene differed significantly between genders (all P<0.05), and none of the other locus polymorphisms showed any significant sex differences; only female left hand 2D∶4D was significantly associated with rs6461992 locus genotype in the relationship between 2D∶4D and HOXA11 polymorphisms (P<0.05). Conclusion There were significant sex differences in 2D∶4D among Han college students in Ningxia, and the rs6461992 locus polymorphism of HOXA11 gene may be associated with the formation of 2D∶4D in females.

Key words: Homeobox A11 gene, Index finger, Ring finger, Digit ratio, Multiplex PCR, Ningxia college student

CLC Number:

YANG Meng-yi NIU Shi-bo ZHANG Jing DANG Jie MA Zhan-bing LU Hong HUO Zheng-hao.

Association between index finger and ring finger length ratios and polymorphism of homeobox A11 gene locus among Ningxia college students [J]. Acta Anatomica Sinica, 2024, 55(1): 62-66.

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Association between index finger and ring finger length ratios and polymorphism of homeobox A11 gene locus among Ningxia college students

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