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Analyzing genetic diversity of chloroplast genomes in Liliales / Do Hoang Dang Khoa // Tạp chí Khoa học và Công nghệ - Đại học Nguyễn Tất Thành . - 2022. - tr. 1-14. - ISSN: 2615-9015
Ho Chi Minh City : Nguyen Tat Thanh University, 2022
14 p.
Ký hiệu phân loại (DDC): 635.9
Liliales is a monocotyledonous order and contains both photosynthetic and mycoheterotrophic species that distribute locally or worldwide. In this study, the genetic diversity of chloroplast genomes in Liliales was explored regarding their nucleotide diversity and repeated composition. The analysis of nucleotide diversity revealed various hotspots in large and small single-copy regions whereas the IR regions had low sequence divergence. Although each family has specific hotspots, the rps15-ycf1 region was commonly found as a highly variable area in the cpDNA of observed taxa. In the cpDNA of Liliales, mononucleotide simple sequence repeat (SSR) is the most common type. The majority of SSRs are located in non-coding regions. Similarly, more long repeats were found in non-coding areas than in coding sequences. Additionally, the complement repeat exceeds forward type in the cpDNA of Liliales. The highest number of long repeats was found in Corsia dispar whereas that of SSRs was detected in Smilax china. The results of nucleotide diversity and repeat analyses provided fundamental information for further studies on population genetics, molecular marker development and evolutionary history of Liliales.
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