Duminil Jérôme, Caron Henri, Scotti Ivan, Cazal Saint-Omer, Petit Rémy J
INRA, UMR Biodiversity, Genes and Ecosystems, 69 route d'Arcachon, F-33612 Cestas Cedex, France.
Mol Ecol. 2006 Oct;15(12):3505-13. doi: 10.1111/j.1365-294X.2006.03040.x.
Rainforest tree species can be difficult to identify outside of their period of reproduction. Vascular tissues from Carapa spp. individuals were collected during a short field trip in French Guiana and analysed in the laboratory with nuclear and chloroplast markers. Using a Bayesian approach, > 90% of the samples could be assigned to one of two distinct clusters corresponding to previously described species, making it possible to estimate the genetic structure of each species and to identify cases of introgression. We argue that this blind procedure represents a first-choice rather than a fallback option whenever related taxa are investigated.
雨林树种在其繁殖期之外可能很难识别。在法属圭亚那的一次短途实地考察中，采集了卡拉帕属（Carapa spp.）个体的维管组织，并在实验室中用核标记和叶绿体标记进行了分析。使用贝叶斯方法，超过90%的样本可以被归入与先前描述的物种相对应的两个不同聚类之一，从而有可能估计每个物种的遗传结构并识别渐渗情况。我们认为，只要对相关分类群进行研究，这种盲法程序就是首选而非备用选项。
