Queiroz Luciano Paganucci de, São-Mateus Wallace, Delgado-Salinas Alfonso, Torke Benjamin M, Lewis Gwilym P, Dorado Óscar, Ardley Julie K, Wojciechowski Martin F, Cardoso Domingos
Departamento de Ciências Biológicas, Universidade Estadual de Feira de Santana, Av. Transnordestina, s/n, Novo Horizonte, 44036-900 Feira de Santana, Bahia, Brazil.
Programa de Pós-Graduação em Sistemática e Evolução (PPGSE), Departamento de Botânica, Ecologia e Zoologia, Universidade Federal do Rio Grande do Norte, Campus Universitário Lagoa Nova, 59072-970 Natal, Rio Grande do Norte, Brazil.
Mol Phylogenet Evol. 2017 Apr;109:191-202. doi: 10.1016/j.ympev.2017.01.001. Epub 2017 Jan 9.
The papilionoid legume tribe Brongniartieae comprises a collection of 15 genera with disparate morphologies that were previously positioned in at least four remotely related tribes. The Brongniartieae displays a wide geographical disjunction between Australia and the New World and previous phylogenetic studies had provided conflicting results about the relationships between the American and Australian genera. We carry out phylogenetic analyses of (1) a plastid matK dataset extensively sampled across legumes to solve the enigmatic relationship of the Cuban-endemic monospecific genus Behaimia; and (2) multilocus datasets with focus on all genera ever referred to Brongniartieae. These analyses resulted in a well-resolved and strongly-supported phylogenetic tree of the Brongniartieae. The monophyly of all American genera of Brongniartieae is strongly supported. The doubtful position of the Australian genus Plagiocarpus is resolved within a clade comprising all Australian genera. Behaimia has been traditionally classified in tribe Millettieae, but our new molecular data and re-assessment of morphological traits have resolved the genus within the early-branching papilionoid tribe Brongniartieae. Characters including the pinnately multifoliolate (vs. unifoliolate) leaves, a sessile (vs. stipitate) ovary, and an indehiscent or late dehiscent one-seeded pod distinguish Behaimia from its closer relatives, the South American genera Cyclolobium and Limadendron.
蝶形花科豆族布朗尼亚尔豆族包含15个属，这些属形态各异，以前至少被归在四个亲缘关系甚远的族中。布朗尼亚尔豆族在澳大利亚和新大陆之间呈现出广泛的地理间断分布，之前的系统发育研究对于美洲属和澳大利亚属之间的关系给出了相互矛盾的结果。我们进行了系统发育分析：（1）对广泛取样于豆科植物的叶绿体matK数据集进行分析，以解决古巴特有的单种属贝海木属的神秘关系；（2）对多位点数据集进行分析，重点关注所有曾被归入布朗尼亚尔豆族的属。这些分析得出了一个分支明确且支持有力的布朗尼亚尔豆族系统发育树。强烈支持布朗尼亚尔豆族所有美洲属的单系性。澳大利亚属斜果豆属的可疑位置在一个包含所有澳大利亚属的分支中得到了解决。贝海木属传统上被归入崖豆族，但我们新的分子数据和对形态特征的重新评估将该属归入了早期分支的蝶形花科布朗尼亚尔豆族。包括羽状复叶（而非单叶）、无柄（而非具柄）子房以及不裂或晚裂的单种子荚等特征，使贝海木属与其近缘属，即南美洲的环瓣豆属和边叶豆属区分开来。
