Segatto Ana Lúcia Anversa, Thompson Claudia Elizabeth, Freitas Loreta Brandão
Laboratory of Molecular Evolution, Department of Genetics, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil.
Center for Biotechnology, Department of Molecular Biology and Biotechnology, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil.
Genet Mol Biol. 2016 Oct-Dec;39(4):658-664. doi: 10.1590/1678-4685-GMB-2016-0073. Epub 2016 Oct 20.
Developmental genes are believed to contribute to major changes during plant evolution, from infrageneric to higher levels. Due to their putative high sequence conservation, developmental genes are rarely used as molecular markers, and few studies including these sequences at low taxonomic levels exist. WUSCHEL-related homeobox genes (WOX) are transcription factors exclusively present in plants and are involved in developmental processes. In this study, we characterized the infrageneric genetic variation of Petunia WOX genes. We obtained phylogenetic relationships consistent with other phylogenies based on nuclear markers, but with higher statistical support, resolution in terminals, and compatibility with flower morphological changes.
发育基因被认为在植物进化过程中，从属内到更高级别都促成了重大变化。由于其假定的高序列保守性，发育基因很少被用作分子标记，并且很少有在低分类水平纳入这些序列的研究。WUSCHEL相关同源框基因（WOX）是仅存在于植物中的转录因子，参与发育过程。在本研究中，我们对矮牵牛WOX基因的属内遗传变异进行了表征。我们获得的系统发育关系与基于核标记的其他系统发育一致，但具有更高的统计支持、末端分辨率以及与花形态变化的兼容性。
