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báo cáo khoa học: " Complete plastid genome sequences suggest strong selection for retention of photosynthetic genes in the parasitic plant genus Cuscuta"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Complete plastid genome sequences suggest strong selection for retention of photosynthetic genes in the parasitic plant genus Cuscuta | BMC Plant Biology BioMed Central Research article Open Access Complete plastid genome sequences suggest strong selection for retention of photosynthetic genes in the parasitic plant genus Cuscuta Joel R McNeal 1 2 Jennifer V Kuehl3 Jeffrey L Boore3 4 and Claude W de Pamphilis2 Address Department of Plant Biology University of Georgia Athens GA 30602 USA 2Department of Biology Huck Institutes of the Life Sciences and Institute of Molecular Evolutionary Genetics The Pennsylvania State University University Park Pennsylvania 16802-5301 USA 3DOE Joint Genome Institute and Lawrence Berkeley National Laboratory Walnut Creek California 94598 USA and 4Genome Project Solutions Hercules CA 94547 USA Email Joel R McNeal - jmcneal@plantbio.uga.edu Jennifer V Kuehl - JVKuehl@lbl.gov Jeffrey L Boore - jlboore@calmail.berkeley.edu Claude W de Pamphilis - cwd3@psu.edu Corresponding author Published 24 October 2007 Received 6 June 2007 BMC Plant Biology 2007 7 57 doi 10.1186 1471 -2229-7-57 Accepted 24 October 2007 This article is available from http www.biomedcentral.cOm 1471-2229 7 57 2007 McNeal 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 Plastid genome content and protein sequence are highly conserved across land plants and their closest algal relatives. Parasitic plants which obtain some or all of their nutrition through an attachment to a host plant are often a striking exception. Heterotrophy can lead to relaxed constraint on some plastid genes or even total gene loss. We sequenced plastid genomes of two species in the parasitic genus Cuscuta along with a non-parasitic relative Ipomoea purpurea to investigate changes in the plastid genome that may result from transition to the parasitic lifestyle. .