The Herbarium, Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3AB, UK;
Am J Bot. 2007 Mar;94(3):313-29. doi: 10.3732/ajb.94.3.313.
The circumscription of Coffeeae (Rubiaceae) and phylogenetic relationships within the tribe were evaluated using sequence data from four plastid regions (trnL-F intron, trnL-F intergenic spacer [IGS], rpl16 intron, and accD-psa1 IGS) and a morphological data set. Eleven candidates for inclusion in Coffeeae were examined using plastid data, and a further three were investigated using morphology alone. Based on previous phylogenetic analysis of the subfamily Ixoroideae, nine genera representing five tribes were used as outgroups. Our results support an enlarged circumscription for Coffeeae, containing 11 genera, viz. Argocoffeopsis, Belonophora, Calycosiphonia, Coffea, Diplospora, Discospermum, Nostolachma, Psilanthus, Tricalysia, Sericanthe, and Xantonnea. The inclusion of Diplospora and Tricalysia within Coffeeae, based on published molecular data, and the inclusion of Argocoffeopsis, Belonophora, Calycosiphonia, Discospermum, and Sericanthe, based on morphological evidence, are well supported. Nostolachma is newly transferred from Gardenieae subtribe Diplosporinae to Coffeeae, and Xantonnea from Octotropideae to Coffeeae. The exclusion of Bertiera from Coffeeae and placement in tribe Bertiereae is supported on the basis of molecular and morphological data. The removal of Diplospora and all other genera from Gardenieae subtribe Diplosporinae to Coffeeae and Octotropideae renders Diplosporinae superfluous. It is proposed that Xantonneopsis be transferred to Octotropideae; Petitiocodon is tentatively placed in Gardenieae. The monophyly of seven genera is supported, but Coffea is identified as paraphyletic in relation to Psilanthus on the basis of molecular and combined molecular and morphological data.
使用来自四个质体区域（trnL-F 内含子、trnL-F 基因间区、rpl16 内含子和 accD-psa1 基因间区）和形态数据集的数据，评估了咖啡族（茜草科）的范围界定和族内的系统发育关系。使用质体数据检查了咖啡族 11 个候选种，仅使用形态学检查了另外 3 个候选种。基于之前对茜草科 Ixoroideae 亚科的系统发育分析，使用了 9 个代表 5 个族的属作为外群。我们的结果支持咖啡族的扩大范围，包含 11 个属，即 Argocoffeopsis、Belonophora、Calycosiphonia、Coffea、Diplospora、Discospermum、Nostolachma、Psilanthus、Tricalysia、Sericanthe 和 Xantonnea。基于已发表的分子数据将 Diplospora 和 Tricalysia 纳入咖啡族，以及基于形态证据将 Argocoffeopsis、Belonophora、Calycosiphonia、Discospermum 和 Sericanthe 纳入咖啡族，都得到了很好的支持。将 Nostolachma 从 Gardenieae 亚科 Diplosporinae 中转移到 Coffeeae，将 Xantonnea 从 Octotropideae 中转移到 Coffeeae，这是新的。基于分子和形态数据，支持将 Bertiera 从 Coffeeae 中排除并置于 Bertiereae 族中。将 Diplospora 和 Gardenieae 亚科 Diplosporinae 的所有其他属转移到 Coffeeae 和 Octotropideae 使 Diplosporinae 变得多余。建议将 Xantonneopsis 转移到 Octotropideae；Petitiocodon 暂时归入 Gardenieae。七个属的单系性得到支持，但基于分子和综合分子和形态数据，Coffea 相对于 Psilanthus 被确定为并系。
