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. 2014 May 28;15(1):405. doi: 10.1186/1471-2164-15-405

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© Park et al.; licensee BioMed Central Ltd. 2014

This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Phylogenetic distribution of gene/intron content (loss and gain) among eight asterids and two outgroups. The tree was inferred using the maximum likelihood (ML) method with the ‘GTRGAMMA’ evolutionary model under the rapid bootstrap algorithm (1000 replicates). Bootstrap support values > 50% are shown at nodes. The 24 genes include atp[1,4,6,8,9], ccm[B, C, Fc, Fn], cob, cox[1-3], matR, mttB, and nad[1, 2, 3, 4, 4L, 5, 6, 7, 9]. The cox1 introns have been lost in the ancestor of angiosperms.