Fifteen species in one: deciphering the Brachionus plicatilis species complex (Rotifera, Monogononta) through DNA taxonomy

Mills, Scott, Alcántara-Rodríguez, J. Arturo, Ciros-Pérez, Jorge, Gómez, Africa, Hagiwara, Atsushi, Galindo, Kayla Hinson, Jersabek, Christian D., Malekzadeh-Viayeh, Reza, Leasi, Francesca, Lee, Jae-Seong, Welch, David B. Mark, Papakostas, Spiros, Riss, Simone, Segers, Hendrik, Serra, Manuel, Shiel, Russell, Smolak, Radoslav, Snell, Terry W., Stelzer, Claus-Peter, Tang, Cuong Q., Wallace, Robert L., Fontaneto, Diego, and Walsh, Elizabeth J. (2017) Fifteen species in one: deciphering the Brachionus plicatilis species complex (Rotifera, Monogononta) through DNA taxonomy. Hydrobiologia, 796 (1). pp. 39-58.

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Abstract

Understanding patterns and processes in biological diversity is a critical task given current and rapid environmental change. Such knowledge is even more essential when the taxa under consideration are important ecological and evolutionary models. One of these cases is the monogonont rotifer cryptic species complex Brachionus plicatilis, which is by far the most extensively studied group of rotifers, is widely used in aquaculture, and is known to host a large amount of unresolved diversity. Here we collate a dataset of previously available and newly generated sequences of COI and ITS1 for 1273 isolates of the B. plicatilis complex and apply three approaches in DNA taxonomy (i.e. ABGD, PTP, and GMYC) to identify and provide support for the existence of 15 species within the complex. We used these results to explore phylogenetic signal in morphometric and ecological traits, and to understand correlation among the traits using phylogenetic comparative models. Our results support niche conservatism for some traits (e.g. body length) and phylogenetic plasticity for others (e.g. genome size).

Item ID: 50626
Item Type: Article (Research - C1)
ISSN: 1573-5117
Keywords: biodiversity, COI, cryptic species, evolution, ITS1, phylogenetic comparative methods, zooplankton
Funders: University of Texas (UTEP) Office of Research and Sponsored Projects, National Science Foundation (NSF)
Projects and Grants: UTEP, NSF DEB1257068, NSF DEB1257116
Date Deposited: 20 Sep 2017 10:36
FoR Codes: 06 BIOLOGICAL SCIENCES > 0603 Evolutionary Biology > 060309 Phylogeny and Comparative Analysis @ 100%
SEO Codes: 96 ENVIRONMENT > 9608 Flora, Fauna and Biodiversity > 960803 Documentation of Undescribed Flora and Fauna @ 100%
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