Genomic in situ hybridization identifies genome donors of Camellia reticulata (Theaceae)
Liu, Li-Qin1,2; Gu, Zhi-Jian1
2011-03-01
发表期刊PLANT SCIENCE
ISSN0168-9452
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
资助信息National Natural Science Foundation of China[30570114]
学科领域Biochemistry & Molecular Biology ; Plant Sciences
DOI10.1016/j.plantsci.2010.12.006
收录类别SCI
语种英语
WOS研究方向Biochemistry & Molecular Biology ; Plant Sciences
WOS类目Biochemistry & Molecular Biology ; Plant Sciences
WOS记录号WOS:000287114500019
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被引频次:6[WOS]   [WOS记录]     [WOS相关记录]
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
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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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