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Cao NTT, Nguyen KT, Vu NT, Nguyen VC, Trinh TM, Nguyen NTB, Trinh LTB, Lam TTT, Cao BL, Dang TN. Analysis of the length polymorphisms in sequence-tagged-site sY1291 on Y chromosome in Vietnamese men of infertile couples. Sci Rep 2019; 9:9654. [PMID: 31427585 PMCID: PMC6700317 DOI: 10.1038/s41598-019-45649-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Accepted: 06/11/2019] [Indexed: 11/09/2022] Open
Abstract
This study aims to analyze the length polymorphisms in sequence-tagged-site (STS) sY1291 of the Y chromosome in Vietnamese men of infertile couples. All 322 DNA samples were amplified with the sY1291 primer by the quantitative fluorescent polymerase chain reaction (QF-PCR) assay. DNA sequencing technique was employed to evaluate the accuracy of QF-PCR results. The study showed 273 out of 322 DNA samples had the presence of STS sY1291, accounted for 84.78%. The QF-PCR results showed that there were various lengths in STS sY1291: 507 bp, 512 bp, 523 bp and 527 bp. The most prevalent length in STS sY1291 was 507 bp (87.5%), the others were 512 bp (4.8%), 523 bp (4.8%) and 527 bp (2.9%). We found that the observed length polymorphisms derived from differences in the number of mononucleotide Thymine (T) repeats in its structure. It stretched from 22 T to 39 T. DNA sequencing results identified that the number of mononucleotide T repeats causes these polymorphisms. However, the pair-wise alignment between the obtained and reference sequence was 77%. It can be seen that the length polymorphisms in STS sY1291 observed in QF-PCR results was accurate but it is still difficult to sequence fragments with mononucleotide repeats.
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Affiliation(s)
- Nguyen Thi Tai Cao
- Department of Biology - Genetics, Faculty of Basic Science, Can Tho University of Medicine and Pharmacy, Can Tho city, Vietnam.
| | - Kien Trung Nguyen
- Department of Physiology, Faculty of Medicine, Can Tho University of Medicine and Pharmacy, Can Tho city, Vietnam
| | - Nhuan Thi Vu
- Department of Biology - Genetics, Faculty of Basic Science, Can Tho University of Medicine and Pharmacy, Can Tho city, Vietnam
| | - Vieng Chung Nguyen
- Faculty of Endocrinology, Can Tho Obstetrics and Gynecology Hospital, Can Tho city, Vietnam
| | - Thiet Minh Trinh
- Department of Biology - Genetics, Faculty of Basic Science, Can Tho University of Medicine and Pharmacy, Can Tho city, Vietnam
| | - Ngoc Thi Bich Nguyen
- Faculty of Endocrinology, Can Tho Obstetrics and Gynecology Hospital, Can Tho city, Vietnam
| | - Lien Thi Bich Trinh
- Faculty of Endocrinology, Can Tho Obstetrics and Gynecology Hospital, Can Tho city, Vietnam
| | - Tien Thi Thuy Lam
- Department of Foreign language, Faculty of Basic Science, Can Tho University of Medicine and Pharmacy, Can Tho city, Vietnam
| | - Binh Luong Cao
- Department of Foreign language, Faculty of Basic Science, Can Tho University of Medicine and Pharmacy, Can Tho city, Vietnam
| | - Tra Ngoc Dang
- Department of Biology - Technology, Quoc Hoc Quy Nhon Highschool, Quy Nhon City, Vietnam
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