Multi‐gene phylogenetic analyses of New Zealand coralline algae: <i>Corallinapetra Novaezelandiae</i> gen. et sp. nov. and recognition of the Hapalidiales ord. nov.

Nelson, Wendy A.; Sutherland, Judy E.; Farr, Tracy J.; Hart, Darren R.; Neill, Kate F.; Kim, Hee Jeong; Yoon, Hwan Su

doi:10.1111/jpy.12288

Cited by 103 publications

(114 citation statements)

References 82 publications

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“…In the last 10 years, there has been a renewed interest in the taxonomy and systematics of the coralline algae (Orders Corallinales, Hapalidiales and Sporolithales) fueled by the availability of DNA sequence data (Nelson et al. , Caragnano et al. ).…”

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confidence: 99%

Mediterranean Lithophyllum stictiforme (Corallinales, Rhodophyta) is a genetically diverse species complex: implications for species circumscription, biogeography and conservation of coralligenous habitats

Pezzolesi

Peña

Gall

et al. 2019

Journal of Phycology

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Lithophyllum species in the Mediterranean Sea function as algal bioconstructors, contributing to the formation of biogenic habitats such as coralligenous concretions. In such habitats, thalli of Lithophyllum, consisting of crusts or lamellae with entire or lobed margins, have been variously referred to as either one species, L. stictiforme, or two species, L. stictiforme and L. cabiochiae, in the recent literature. We investigated species diversity and phylogenetic relationships in these algae by sequencing three markers (psbA and rbcL genes, cox2,3 spacer), in conjunction with methods for algorithmic delimitation of species (ABGD and GMYC). Mediterranean subtidal Lithophyllum belong to a well‐supported lineage, hereby called the L. stictiforme complex, which also includes two species described from the Atlantic, L. lobatum and L. searlesii. Our results indicate that the L. stictiforme complex consists of at least 13 species. Among the Mediterranean species, some are widely distributed and span most of the western and central Mediterranean, whereas others appear to be restricted to specific localities. These patterns are interpreted as possibly resulting from allopatric speciation events that took place during the Messinian Salinity Crisis and subsequent glacial periods. A partial rbcL sequence from the lectotype of L. stictiforme unambiguously indicates that this name applies to the most common subtidal Lithophyllum in the central Mediterranean. We agree with recent treatments that considered L. cabiochiae and L. stictiforme conspecific. The diversity of Lithophyllum in Mediterranean coralligenous habitats has been substantially underestimated, and future work on these and other Mediterranean corallines should use identifications based on DNA sequences.

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confidence: 99%

Mediterranean Lithophyllum stictiforme (Corallinales, Rhodophyta) is a genetically diverse species complex: implications for species circumscription, biogeography and conservation of coralligenous habitats

Pezzolesi

Peña

Gall

et al. 2019

Journal of Phycology

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“…, Nelson et al. ). However, Sporolithales shares with Corallinales and Hapalidiales the feature of gametangia (including carposporangia) occurring in uniporate conceptacles.…”

Section: Discussionmentioning

confidence: 93%

“…, Nelson et al. ). Generally speaking, before fertilization, the structure of female (carpogonial) conceptacles in Corallinales, Hapalidiales, and Sporolithales are similar and no significant distinction has been reported at the ordinal level.…”

Section: Discussionmentioning

confidence: 99%

“…() elevated the Sporolithaceae to ordinal rank, as the Sporolithales, based on its closer alliance in molecular phylogenies to the Rhodogorgonales rather than the Corallinales and what is now Hapalidiales (Nelson et al. ), and characterized by the mode of the tetrasporangial cleavage (cruciate as opposed to simultaneously zonate in the Corallinales and Hapalidiales) and the presence of calcified sporangial compartments formed from the enlarged wall of a tetrasporangial initial (see Cowan , Townsend et al. ).…”

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confidence: 99%

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New diagnostic characters for the order Sporolithales (Corallinophycidae, Rhodophyta)

Bahia

Maneveldt

Amado‐Filho

et al. 2015

Journal of Phycology

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The diagnosis of the order Sporolithales is currently restricted to tetrasporangial anatomy. Until recently, there were few reports about gametangial, and more specifically carposporangial material for the Sporolithales. This study provides the first detailed observations of the anatomy of the mature carposporophyte phase from three species of Sporolithales commonly found in rhodolith beds from Brazil: Sporolithon episporum, S. ptychoides, and Sporolithon sp. Using these observations, along with previously published descriptions and illustrations from other representative species in the order, a comparison was made with the other three orders (Corallinales, Hapalidiales, and Rhodogorgonales) of the Corallinophycidae. We amend the diagnosis of the order Sporolithales to include the anatomy of the mature carposporophyte as follows: carposporangial conceptacles that lack a central fusion cell, but instead with numerous, short, one to two-celled, filaments that bear oblong terminal carposporangia that are distributed across the conceptacle chamber floor and walls.

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“…The psbA sequence of a specimen collected in the Mediterranean Sea, Spain, identified as L. cf. crispatum (Peña et al 2014b) and the psbA sequences of the taxon identified as L. crispatum (Nelson et al 2015) appear distantly related and are not conspecific with any of the newly sequenced taxa. DNA sequencing of the lectotype specimen of L. crispatum (Basso et al 2011), needs to be performed before this name can be applied with confidence to specimens from the GMx.…”

Section: Discussionmentioning

confidence: 99%

Molecular and Morphological Diversity of Lithothamnion spp. (Hapalidiales, Rhodophyta) from Deepwater Rhodolith Beds in the Northwestern Gulf of Mexico

et al. 2016

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In the Northwestern Gulf of Mexico (NWGMx), subtidal rhodolith beds offshore Louisiana at 45-80 m depth harbor a diverse community of uncharacterized non-geniculate coralline algae including both biogenic and autogenic rhodoliths and other encrusting taxa. Identifying specimens to their correct genus and species is an ongoing process because many available names remain to be validated by comparison to type specimens. Here, comparative DNA sequencing (psbA, UPA, and COI) and scanning electron microscopy (SEM) are used to assess the molecular and morphological diversity of the rhodolithforming specimens belonging to the generic concept of Lithothamnion. Phylogenetic and species delimitation analyses of the newly generated sequences from recently dredged specimens at Ewing and Sackett Banks offshore Louisiana reveal the presence of at least six species of Lithothamnion, whose generic placement is confirmed by SEM images of features considered characteristic for the genus. More broadly, our analyses indicate at least eight Lithothamnion species are found in the Gulf of Mexico. Phylogenetic analyses of single (psbA and COI) and concatenated markers (psbA, COI and UPA) show that Lithothamnion is polyphyletic.

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Multi‐gene phylogenetic analyses of New Zealand coralline algae: Corallinapetra Novaezelandiae gen. et sp. nov. and recognition of the Hapalidiales ord. nov.

Cited by 103 publications

References 82 publications

Mediterranean Lithophyllum stictiforme (Corallinales, Rhodophyta) is a genetically diverse species complex: implications for species circumscription, biogeography and conservation of coralligenous habitats

Mediterranean Lithophyllum stictiforme (Corallinales, Rhodophyta) is a genetically diverse species complex: implications for species circumscription, biogeography and conservation of coralligenous habitats

New diagnostic characters for the order Sporolithales (Corallinophycidae, Rhodophyta)

Molecular and Morphological Diversity of Lithothamnion spp. (Hapalidiales, Rhodophyta) from Deepwater Rhodolith Beds in the Northwestern Gulf of Mexico

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