On the taxonomy of three sympatric sibling species of the Brachionus plicatilis (Rotifera) complex from Spain, with the description of B. ibericus n. sp.

Ciros‐Pérez, Jorge; Gómez, África; Serra, Manuel

doi:10.1093/plankt/23.12.1311

Cited by 158 publications

(142 citation statements)

References 35 publications

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“…Thus, in reviewing morphological, behavioural, and genetic studies, Segers (1995) concluded that the L and S strains could be defined as two distinct species, namely B. plicatilis sensu stricto (s.s.) and Brachionus rotundiformis Tschugunoff, 1921, respectively. Further investigations by , , Gómez & Snell (1996), Serra et al (1998), andOrtells et al (2000) using molecular markers and reproductive isolation tests revealed that several cryptic species could be ascribed to both B. plicatilis and B. rotundiformis. This revelation culminated in a paper by Ciros-Pérez et al (2001a) that used morphological, ecological, and genetic differences to support B. plicatilis s.s. and B. rotundiformis and to introduce a medium size type, designated SM, to the species complex with the description of Brachionus ibericus Ciros-Pérez, Gómez & Serra, 2001. At this stage, three groups were known: L with B. plicatilis s.s., SM with B. ibericus, and SS (here so called with two capital 's' to be clearly differentiated from the S strains) with B. rotundiformis (Fig.…”

Section: Introductionmentioning

confidence: 99%

“…However, only six species have been formally described (in chronological order): B. plicatilis s.s., B. rotundiformis, B. asplanchnoidis, B. ibericus, B. manjavacas, and B. koreanus, respectively, by Müller (1786), Tschungunoff (1921, Charin (1947), Ciros-Pérez et al (2001a), Fontaneto et al (2007), and Hwang et al (2013). Nevertheless, there are additional clades that may correspond to putative new species and that have been designated by the scientific community simply as ''Brachionus sp.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2016

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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).

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

et al. 2016

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“…In contrast, the B. plicatilis population from an inland sea in Russia probably had no recent exposure to K. brevis, so these rotifers have experienced little selection pressure to adapt to feeding on K. brevis. Historically B. ibericus and B. plicatilis were thought to be members of the same species (B. plicatilis); however, recent molecular genetic studies suggest divergence may have occurred many million years ago, despite relatively few morphological differences among members of this species complex (Ciros-Perez et al 2001). It would be useful to repeat the mixed diet feeding experiments with a B. ibericus population that has no experience with K. brevis and/or a B. plicatilis population that has been exposed to K. brevis to test whether traits related to tolerance of K. brevis in a mixed diet differ at the species or population levels.…”

Section: Discussionmentioning

confidence: 99%

Chemical defense of the red tide dinoflagellate Karenia brevis against rotifer grazing

Kubanek

Snell

Pirkle

2007

Limnology & Oceanography

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In order to test whether phytoplankton such as the red tide dinoflagellate Karenia brevis negatively affect rotifer grazers and what mechanisms are involved in these interactions, we conducted laboratory feeding experiments using K. brevis cultured from Gulf of Mexico coastal waters and two species of rotifers, one cooccurring and the other from an inland sea in Russia. The co-occurring rotifer Brachionus ibericus did not ingest K. brevis as a sole diet but tolerated K. brevis in a diet mixed with Rhodomonas lens, whereas the allopatric rotifer, Brachionus plicatilis, rejected K. brevis in either diet, although B. plicatilis started feeding on the mixed diet after a delay of 4 days. The deterrence of K. brevis was mediated by its cellular organic extracts and not by exudates, with compounds other than brevetoxins PbTx-2, PbTx-3, and PbTx-9 implicated in deterrence. The finding that closely related rotifers respond differently to K. brevis and to its chemical defense suggests that a shared evolutionary history may have led B. ibericus to tolerate K. brevis in a mixed diet.

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“…This stage, in which the larva requires exogenous feeding, is a critical period of high mortality that poses serious challenges for marine aquaculture (Takeuchi, 2014). Rotifers of the Brachionus plicatilis species complex are the first live feed for many marine fish larvae; among these, Brachionus rotundiformis is the preferred rotifer for the initial feeding of larvae with small mouths, due to its smaller size (lorica length 100-210 µm, mean±SD: 148.7±1.3 µm) (Ciros-Pérez, Gómez, & Serra, 2001). …”

Section: Introductionmentioning

confidence: 99%

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Reyes¹,

Monteon²,

Urreta³

et al. 2017

Turk. J. Fish. Aquat. Sci.

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The effect of different salinities on growth, crude protein and total energy on a Mexican strain of the minute rotifer Proales similis (GenBank KM078762) were evaluated. The experiment was conducted at 5, 15, 25 and 35 psu, with five replicates. Rotifers were fed twice a day with Nannochloropsis sp., temperature, dissolved oxygen and pH values were maintained at 25±1°C, 5±1 mg L -1 and 8±1 respectively. Results show that salinity does not affect the intrinsic rate of population growth (r=0.46 to 0.51 day -1 ) and duplication time (Dt=1.36 to 1.51 days) for P. similis. Maximum density (Dmax) values were lower at 35 psu (1,703 rotifers ml -1 ), whereas Dmax values were between 2,488 to 2,560 rotifers ml -1 at 5, 15 and 25 psu. Crude protein fluctuated between 25.3 and 42.8% dry biomass (DB), while energy content varied between 11.8 and 19.9 J mg -1 DB; values were significantly lower at 35 psu. Observed population growth parameters and the protein and energy content between 5-25 psu, indicate that P. similis can be successfully reared below 35 psu, making P. similis very suitable when fish larvae require a small rotifer due to sizing of mouth gap at the beginning of exogenous feeding.

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On the taxonomy of three sympatric sibling species of the Brachionus plicatilis (Rotifera) complex from Spain, with the description of B. ibericus n. sp.

Cited by 158 publications

References 35 publications

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

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

Chemical defense of the red tide dinoflagellate Karenia brevis against rotifer grazing

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