Abstract
Bonilla-Rodríguez M., Garduño-Solórzano G., Martínez-García M., Campos J.E., Monsalvo-Reyes A.C. and Quintanar-Zúñiga R.E. 2013. Vaucheria zapotecana (Xanthophyceae), a new species from Oaxaca, Mexico. Phycologia 52: 550–556. DOI: 10.2216/13-162.1A new species of Vaucheria was isolated from the Santa Gertrudis River in Oaxaca, Mexico. This taxon was distinguished from the other six species in the Pseudogeminata group of section Racemosae by wider siphonous filaments and antheridia of a larger diameter, lack of septa in the gametophore, broader oogonial beak, erect oogonia and oospores that lacked yellowish spots. This species was named Vaucheria zapotecana sp. nov. The phylogenetic relationship of this species was investigated by analyzing a 2022-base-pair sequence that included the rbcL gene; results revealed a close relationship among this species, V. pseudogeminata and other species of the section Racemosae; although, the sequence for V. zaptecana is distinct.
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