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Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: On the road to diploidization? Homoeolog loss in independently formed populations of the allopolyploid Tragopogon miscellus (Asteraceae) | BMC Plant Biology BioMed Central Research article On the road to diploidization Homoeolog loss in independently formed populations of the allopolyploid Tragopogon miscellus Asteraceae Jennifer A Tate 1 Prashant Joshi1 Kerry A Soltis2 Pamela S Soltis3 4 and Douglas E Soltis2 4 Open Access Address 1Institute of Molecular BioSciences Massey University Palmerston North New Zealand 2Department of Biology University of Florida Gainesville Florida USA 3Florida Museum of Natural History University of Florida Gainesville Florida USA and 4Genetics Institute University of Florida Gainesville Florida USA Email Jennifer A Tate - j.tate@massey.ac.nz Prashant Joshi - p.joshi@massey.ac.nz KerryASoltis-kerry1@ufl.edu Pamela S Soltis - psoltis@flmnh.ufl.edu Douglas E Soltis - dsoltis@botany.ufl.edu Corresponding author Published 27 June 2009 Received 5 May 2009 BMC Plant Biology 2009 9 80 doi 10.1186 1471-2229-9-80 Accepted 27 June 2009 This article is available from http www.biomedcentral.cOm 1471-2229 9 80 2009 Tate et al licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http creativecommons.org licenses by 2.0 which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract Background Polyploidy whole-genome duplication is an important speciation mechanism particularly in plants. Gene loss silencing and the formation of novel gene complexes are some of the consequences that the new polyploid genome may experience. Despite the recurrent nature of polyploidy little is known about the genomic outcome of independent polyploidization events. Here we analyze the fate of genes duplicated by polyploidy homoeologs in multiple individuals from ten natural populations of Tragopogon miscellus Asteraceae all of which formed independently from T. dubius and T. .
