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| Physical mapping of rDNA and karyotype analysis in Tulipa sinkiangensis and T. schrenkii | |
Lan, Yue1; Qu, Lianwei2,3; Xin, Haoyang1; Gong, Huiling4 ; Lei, Jiajun2; Xi, Mengli1
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| 2018-10-20 | |
| 发表期刊 | SCIENTIA HORTICULTURAE
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| ISSN | 0304-4238 |
| 卷号 | 240页码:638-644 |
| 摘要 | The karyotypes of Tulipa sinkiangensis and T. schrenkii were analyzed based on chromosome size and the physical mapping of 5S and 45S ribosomal DNAs (rDNAs) using fluorescence in situ hybridization. The genomes from both species were consistent with the uniform karyotype formula, i.e., having four pairs of submedian and eight pairs of subterminal chromosomes (2n = 2x = 24 = 8sm + 16st). Remarkably, the number and location of 5S rDNA loci were quite different between the two species. A single pair of 5S rDNA loci was detected on both chromosomes 5 in T. sinkiangensis, but the 5S rDNA loci were detected on almost all chromosomes in T. schrenkii, except for chromosomes 4 and 6. For both species, the 45S rDNA loci were localized to telomeric regions of the chromosome-on either the short or long arm. Interestingly, the 5S rDNA and 45S rDNA loci positions and numbers varied among different genotypes of T. schrenkii. We conclude that the two species are close relatives and that a series of genome modifications occurred during the diversification of these two species. |
| 关键词 | Fluorescence in situ hybridization 5S rDNA 45S rDNA Karyotype analysis Tulipa |
| DOI | 10.1016/j.scienta.2018.06.055 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | Jiangsu Provincial Key Basic Research Fund for Universities[16KJA220001] |
| WOS研究方向 | Agriculture |
| WOS类目 | Horticulture |
| WOS记录号 | WOS:000439763000080 |
| 出版者 | ELSEVIER SCIENCE BV |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/32389 |
| 专题 | 生命科学与工程学院 |
| 通讯作者 | Lei, Jiajun; Xi, Mengli |
| 作者单位 | 1.Nanjing Forestry Univ, Coll Forestry, Coinnovat Ctr Sustainable Forestry Southern China, Nanjing 210037, Jiangsu, Peoples R China 2.Shenyang Agr Univ, Coll Hort, Shenyang 110866, Liaoning, Peoples R China 3.Liaoning Acad Agr Sci, Inst Floriculture, Shenyang 110161, Liaoning, Peoples R China 4.Lanzhou Univ Technol, Sch Life Sci & Engn, Lanzhou 730050, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lan, Yue,Qu, Lianwei,Xin, Haoyang,et al. Physical mapping of rDNA and karyotype analysis in Tulipa sinkiangensis and T. schrenkii[J]. SCIENTIA HORTICULTURAE,2018,240:638-644. |
| APA | Lan, Yue,Qu, Lianwei,Xin, Haoyang,Gong, Huiling,Lei, Jiajun,&Xi, Mengli.(2018).Physical mapping of rDNA and karyotype analysis in Tulipa sinkiangensis and T. schrenkii.SCIENTIA HORTICULTURAE,240,638-644. |
| MLA | Lan, Yue,et al."Physical mapping of rDNA and karyotype analysis in Tulipa sinkiangensis and T. schrenkii".SCIENTIA HORTICULTURAE 240(2018):638-644. |
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