Genomic in situ hybridization identifies genome donors of Camellia reticulata (Theaceae) | |
Liu, Li-Qin1,2; Gu, Zhi-Jian1 | |
通讯作者 | Liu, LQ (reprint author), Chinese Acad Sci, Kunming Inst Bot, Kunming 650204, Peoples R China |
2011-03-01 | |
发表期刊 | PLANT SCIENCE
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ISSN | 0168-9452 |
卷号 | 180期号:3页码:554-559 |
摘要 | Camellia reticulata (Theaceae genus Camellia) is a world-famous, ornamental flowering plant. More interestingly, it has a polyploid series varying from 2n = 2x = 30, 2n = 4x = 60 to 2n = 6x = 90, with a basic chromosome number of x = 15. The hypothetic allopolyploid origin and parental genomes of these polyploid types remains unknown. Genomic in situ hybridization (GISH) was used to study the genome organization and evolution of C. reticulata. Total genomic DNA from closely-related diploid species (C pitardii and C saluenensis), with the chromosome number 2n = 2x = 30, were labeled and hybridized in the presence of blocking DNA onto metaphase spreads of C reticulata. The C pitartii probe painted part of the tetraploid and hexaploid C reticulata genomes, whereas the C saluenensis probe delineated part of the hexaploid C reticulata genome. The results provide compelling evidence for the allopolyploid origin of C. reticultata genomes and demonstrate that 1) the diploid C. reticultata, C. pitardii and C. saluenensis are the progenitors of polyploid C reticultata, 2) hybridization between diploid C reticultata and diploid C pitardii gave birth to allotetraploid C. reticulata, and 3) subsequent hybridization between allotetraploid C. reticulata and diploid C. saluenensis formed the allohexaploid C. reticulata. (C) 2010 Elsevier Ireland Ltd. All rights reserved. |
关键词 | Camellia Reticulata C. Pitardii C. Saluenensis Genomic In Situ Hybridization (Gish) Genome Donors |
学科领域 | Biochemistry & Molecular Biology ; Plant Sciences |
DOI | 10.1016/j.plantsci.2010.12.006 |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000287114500019 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.kib.ac.cn/handle/151853/5307 |
专题 | 资源植物与生物技术所级重点实验室 |
作者单位 | 1.Chinese Acad Sci, Kunming Inst Bot, Kunming 650204, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Liu, Li-Qin,Gu, Zhi-Jian. Genomic in situ hybridization identifies genome donors of Camellia reticulata (Theaceae)[J]. PLANT SCIENCE,2011,180(3):554-559. |
APA | Liu, Li-Qin,&Gu, Zhi-Jian.(2011).Genomic in situ hybridization identifies genome donors of Camellia reticulata (Theaceae).PLANT SCIENCE,180(3),554-559. |
MLA | Liu, Li-Qin,et al."Genomic in situ hybridization identifies genome donors of Camellia reticulata (Theaceae)".PLANT SCIENCE 180.3(2011):554-559. |
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