Abstract
Maoming is located in the southwest region of Guangdong Province and is the cradle of Gaoliang culture, which is the representative branch of Lingnan cultures. Historical records showed that the amalgamations between Gaoliang aborigines and distinct ethnic minorities had some influences on the shaping of Gaoliang culture, especially for the local Tai-kadai language-speaking Baiyue and Han Chinese from Central China. However, there is still no exact genetic evidence for the influences on the genetic pool of Maoming Han, and the genetic relationships between Maoming Han and other Chinese populations are still unclear. Hence, in order to get a better understanding of the paternal genetic structures and characterize the forensic features of 27 Y-chromosomal short tandem repeats (Y-STRs) in Han Chinese from Guangdong Maoming, we firstly applied the AmpFLSTR® Yfiler® Plus PCR Amplification Kit (Thermo Fisher Scientific, Waltham, MA, United States) to genotype the haplotypes in 431 Han males residing in Maoming. A total of 263 different alleles were determined across all 27 Y-STRs with the corresponding allelic frequencies from 0.0004 to 0.7401, and the range of genetic diversity (GD) was 0.4027 (DYS391) to 0.9596 (DYS385a/b). In the first batch of 27 Yfiler data in Maoming Han, 417 distinct haplotypes were discovered, and nine off-ladder alleles were identified at six Y-STRs; in addition, no copy number variant or null allele was detected. The overall haplotype diversity (HD) and discrimination capacity (DC) of 27 Yfiler were 0.9997 and 0.9675, respectively, which demonstrated that the 6-dye and 27-plex system has sufficient system effectiveness for forensic applications in Maoming Han. What is more, the phylogenetic analyses indicated that Maoming Han, which is a Southern Han Chinese population, has a close relationship with Meizhou Kejia, which uncovered that the role of the gene flows from surrounding Han populations in shaping the genetic pool of Maoming Han cannot be ignored. From the perspectives of genetics, linguistics, and geographies, the genetic structures of Han populations correspond to the patterns of the geographical-scale spatial distributions and the relationships of language families. Nevertheless, no exact genetic evidence supports the intimate relationships between Maoming Han and Tai-Kadai language-speaking populations and Han populations of Central Plains in the present study.
Highlights
Maoming, a city located in the southwest of Guangdong Province (Figure 1), is the cradle of Gaoliang culture (Zhou, 2019)
In order to evaluate the forensic features of Maoming Han population, we set up two datasets, Yfiler set and Yfiler Plus set, including 17 and 27 Y-chromosomal short tandem repeats (Y-STRs), respectively
The aims of this study were to feature the forensic characteristics of 27 Y-STRs in Maoming Han, clarify the paternal genetic structures of Maoming Han, and get a better understanding of the genetic relationships between Maoming Han and other Chinese populations from the perspectives of geographics, linguistics, and genetics
Summary
A city located in the southwest of Guangdong Province (Figure 1), is the cradle of Gaoliang culture (Zhou, 2019). Since the Southern and Northern Dynasties (420–589 A.D.), the intermarriages accelerated national amalgamations between Gaoliang aborigines and other ethnic minorities in ancient Gaoliang District (He, 2012; Chen, 2013)). Gaoliang culture was influenced by the convergences between Gaoliang aborigines and different ethnic groups (Gao, 2007). Some archeological records hinted that the population structures of Gaoliang aborigines might be affected by the local Baiyue (a Tai-kadai languagespeaking population in ancient China) and Han Chinese from Central China with the increasingly social activities of mixed marriages, population migrations, and trade contacts in the long course of history (Gao, 2007). There is still no exact genetic evidence for the influences on the genetic pool of Maoming Han, and the genetic relationships between Maoming Han and other surrounding populations are still unclear
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
