Systematics of “horned” dodders: phylogenetic relationships, taxonomy, and two new species within the Cuscuta chapalana complex (Convolvulaceae)

Botany ◽  
2011 ◽  
Vol 89 (10) ◽  
pp. 715-730 ◽  
Author(s):  
Mihai Costea ◽  
Ignacio García Ruiz ◽  
Saša Stefanović
Keyword(s):  
New Species ◽  
Phylogenetic Relationships ◽  
Internal Transcribed Spacer ◽  
Sequence Data ◽  
Dna Sequence Data ◽  
26S Rdna ◽  
F Region ◽  
Two New Species ◽  
Northern South America ◽  
Nuclear Regions

The Cuscuta chapalana complex (Convolvulaceae) is a recently circumscribed clade within the subgenus Grammica that includes several little-known species from Mexico and Central and northern South America characterized by the presence of peculiar subapical multicelullar appendages on the corolla and often on the calyx lobes. Basic morphology, scanning electron microscopy, and DNA sequence data from the plastid trnL–F region and the 26S rDNA and internal transcribed spacer nuclear regions were used to investigate the phylogenetic relationships within the group and to test the species limits. Multicellular appendages are horn-like or tubular in shape and bear one or more stomata at their tips; hence the vernacular name “horned” dodders. Eight lineages were reconstructed; two of them, both from Mexico, were described as new species: Cuscuta bonafortunae Costea & I. García, sp. nov., and Cuscuta carnosa Costea & Stefanović, sp. nov. Cuscuta pringlei is redefined as a variety of Cuscuta strobilacea . A taxonomic treatment with an identification key, descriptions, and illustrations is provided.

Species delimitation, phylogenetic relationships, and two new species in the Cuscuta gracillima complex (Convolvulaceae)This paper is one of a selection of papers published in the Special Issue on Systematics Research.

Botany ◽  
2008 ◽  
Vol 86 (7) ◽  
pp. 670-681 ◽  
Author(s):  
Mihai Costea ◽  
Fiona Aiston ◽  
Saša Stefanović
Keyword(s):  
New Species ◽  
Phylogenetic Relationships ◽  
Species Delimitation ◽  
Internal Transcribed Spacer ◽  
Sequence Data ◽  
Conservation Status ◽  
Special Issue ◽  
Dna Sequence Data ◽  
F Region ◽  
Selection Of

Basic morphology, scanning electron microscopy, and DNA sequence data from the plastid trnL–F region and the nuclear internal transcribed spacer (ITS) regions were used to delimit the species of a recently circumscribed clade of Cuscuta (Convolvulaceae) and to investigate their phylogenetic relationships. This clade comprises the Cuscuta gracillima complex from Mexico, Central and northern South America, a group which is characterized by inflorescences that appear to emerge directly from the host stem. Eight lineages are recognized, with two of them described here as new species: Cuscuta punana Costea & Stefanović, sp. nov. from Ecuador and Cuscuta vandevenderi Costea & Stefanović, sp. nov. from Mexico. Cuscuta colombiana Yunck is redefined to include Cuscuta aristeguietae Yunck., and Cuscuta deltoidea Yunck. is broadened to encompass Cuscuta serruloba Yunck. A taxonomic treatment with an identification key, descriptions, and illustrations is provided; the biogeography and conservation status of the eight species are also discussed.

Two new species of Crocicreas (Helotiaceae, Ascomycota) revealed by morphological and molecular data

Phytotaxa ◽  
2016 ◽  
Vol 272 (2) ◽  
pp. 149 ◽  
Author(s):  
HUAN-DI ZHENG ◽  
WEN-YING ZHUANG
Keyword(s):  
New Species ◽  
Internal Transcribed Spacer ◽  
Sequence Data ◽  
Molecular Data ◽  
Nuclear Ribosomal Dna ◽  
Sequence Analyses ◽  
Dna Sequence Data ◽  
Ectal Excipulum ◽  
Two New Species ◽  
Morphological And Molecular Data

Two new species of Crocicreas are established based on morphological features and DNA sequence data. Crocicreas luteolum is distinct by combination of the following features: caulicolous, hymenium surface yellow, margin plane, ectal excipulum of textura prismatica, asci J+, 62−81 × 6.0−7.7 µm, and ascospores fusoid, biguttulate, 11−14 × 2.2−3.3 µm. Crocicreas pseudobambusae is featured by combination of bambusicolous, hymenium surface white to beige, margin plane, ectal excipulum of textura intricata, asci J+, 36−58 × 3.5−5.5 µm, and ascospores ellipsoid, eguttulate, 4.5−7.7 × 1.8−2.5 µm. Description, illustration and comparison with related fungi are provided for each species. Sequence analyses of the internal transcribed spacer of nuclear ribosomal DNA are used to confirm their generic positions.

scholarly journals The Genera of Fungi – G6: Arthrographis, Kramasamuha, Melnikomyces, Thysanorea, and Verruconis

2020 ◽  
Vol 6 (1) ◽  
pp. 1-24
Author(s):  
M. Hernández-Restrepo ◽  
A. Giraldo ◽  
R. van Doorn ◽  
M.J. Wingfield ◽  
J.Z. Groenewald ◽  
...  
Keyword(s):  
New Species ◽  
Dna Sequence ◽  
Type Species ◽  
New Genus ◽  
Sequence Data ◽  
Dna Sequence Data ◽  
Two New Species ◽  
First Time

The Genera of Fungi series, of which this is the sixth contribution, links type species of fungal genera to their morphology and DNA sequence data. Five genera of microfungi are treated in this study, with new species introduced in Arthrographis, Melnikomyces, and Verruconis. The genus Thysanorea is emended and two new species and nine combinations are proposed. Kramasamuha sibika, the type species of the genus, is provided with DNA sequence data for first time and shown to be a member of Helminthosphaeriaceae (Sordariomycetes). Aureoconidiella is introduced as a new genus representing a new lineage in the Dothideomycetes.

Eupholidoptera karatolosi sp.n. and E. mirzayani sp.n. (Orthoptera,  Tettigoniidae), two new bushcrickets from Greece and Iran

Zootaxa ◽  
2007 ◽  
Vol 1562 (1) ◽  
pp. 43-53
Author(s):  
MOHSEN MOFIDI-NEYESTANAK ◽  
DONALD L.J. QUICKE
Keyword(s):  
New Species ◽  
Dna Sequence ◽  
Related Species ◽  
Sequence Data ◽  
Identification Key ◽  
Phylogenetic Study ◽  
Species Relationships ◽  
Closely Related Species ◽  
Dna Sequence Data ◽  
Two New Species

Eupholidoptera karatolosi Mofidi-Neyestanak & Quicke from Greece and E. mirzayani Mofidi-Neyestanak & Quicke from Iran, two new species of bushcrickets (Orthoptera, Tettigoniidae: Platycleidini), are described and distinguished from closely related species based on morphology. Species relationships within Eupholidoptera Maran are discussed and some species are given new assignments. A simplified illustrated identification key to the species of Eupholidoptera is provided to accommodate the new species. They are being described since they have been used to generate DNA sequence data that will be published elsewhere as part of a phylogenetic study of the tribe Platycleidini.

Two new species of shrub frogs (Rhacophoridae: Pseudophilautus) from Sri Lanka

Zootaxa ◽  
2011 ◽  
Vol 2747 (1) ◽  
pp. 1 ◽  
Author(s):  
MADHAVA MEEGASKUMBURA ◽  
KELUM MANAMENDRA-ARACHCHI
Keyword(s):  
Mitochondrial Dna ◽  
New Species ◽  
Dna Sequence ◽  
Sequence Data ◽  
Outer Edge ◽  
Valid Species ◽  
Sri Lankan ◽  
Anthropogenic Habitats ◽  
Dna Sequence Data ◽  
Two New Species

Two new species of Sri Lankan shrub frogs of the genus Pseudophilautus are described. These species are diagnosed from their congeners on the basis of morphology, morphometrics and mitochondrial DNA sequence data. Pseudophilautus schneideri, new species, is distinguished from all Sri Lankan Pseudophilautus by its small size (< 22.8 mm SVL), distinct tympanum and supratympanic fold, sharp canthal edges, granular throat, chest and belly, and absence or presence of a vomerine ridge. Pseudophilautus hankeni, new species, is distinguished by its diminutive size (< 21.9 mm SVL), distinct tympanum, rounded canthal edges, tuberculated outer edge of lower arm, tuberculated dermal fold on outer edge of foot, granular throat, chest and belly, and the absence of a vomerine ridge. Pseudophilautus schneideri inhabits shrubs in open areas of the low to mid-elevations of the island’s south-western ‘wet zone’ (rainfall > 2,000 mm•yr -1 ), including anthropogenic habitats, while P. hankeni is found on shrubs in the understorey of montane forests of the highest peaks (c. 1,200– 1,600 m elevation) of the Knuckles region. These descriptions bring the total number of valid species of Sri Lankan Pseudophilautus to 67, 48 of which are extant.

The genus Iare Barbalho and Penteado-Dias (Hymenoptera: Braconidae: Doryctinae) in Mexico, with the description of two new species

Zootaxa ◽  
2010 ◽  
Vol 2685 (1) ◽  
pp. 30 ◽  
Author(s):  
JUAN JOSÉ MARTÍNEZ ◽  
FADIA SARA CECCARELLI ◽  
ALEJANDRO ZALDÍVAR-RIVERÓN
Keyword(s):  
New Species ◽  
Bayesian Analysis ◽  
Dna Sequence ◽  
Sequence Data ◽  
Tropical Dry Forest ◽  
Sister Group ◽  
Dry Forest ◽  
Dna Sequence Data ◽  
Single Clade ◽  
Two New Species

Two new species of the doryctine genus Iare, I. mexicanus sp. nov. and I. cheguevarai sp. nov., are genetically and morphologically described from a tropical dry forest in Jalisco, Mexico. Iare belokobylskiji Marsh is also reported for the latter region. These species represent the northernmost distribution records for the genus. A simultaneous Bayesian analysis with COI and 28S DNA sequence data recovered the three examined species of Iare within a single clade, though with low support. This genus appears nested within a large doryctine Neotropical clade as sister group of a cluster containing species of Callihormius Ashmead, Leluthia Cameron, Histeromeroides Marsh and Panama Marsh.

Pilea nonggangensis (Urticaceae), a new species from Guangxi, China

Phytotaxa ◽  
2017 ◽  
Vol 313 (1) ◽  
pp. 130 ◽  
Author(s):  
LONG-FEI FU ◽  
SHI-LIAN HUANG ◽  
ALEX K. MONRO ◽  
YING LIU ◽  
FANG WEN ◽  
...  
Keyword(s):  
New Species ◽  
Internal Transcribed Spacer ◽  
Sequence Data ◽  
Species Conservation ◽  
Its Region ◽  
Systematic Position ◽  
Molecular Evidence ◽  
Conservation Assessment ◽  
Dna Sequence Data ◽  
A New Species

Pilea nonggangensis Y. G. Wei, L. F. Fu & A. K. Monro, a new species from Guangxi, China is described and illustrated. The new species is morphologically most similar to P. basicordata from which it differs by being dioecious, having peltate leaf blades, membranous stipules, paired inflorescences and larger bracts. Nuclear ribosomal internal transcribed spacer (ITS) region and plastid trnL-F intron spacer (trnL-F) DNA sequence data from the new species and 20 local congeneric species are used to resolve the systematic position of the new species within Pilea. Despite vastly different morphology the molecular evidence suggests that P. nonggangensis is most closely related to P. pseudonotata. A Global Species Conservation Assessment classifies P. nonggangensis as Vulnerable (VU).

Culture experiments and DNA sequence data confirm the identity of Lobaria photomorphs

2003 ◽  
Vol 81 (3) ◽  
pp. 232-247 ◽  
Author(s):  
Soili Stenroos ◽  
Elfriede Stocker-Wörgötter ◽  
Isao Yoshimura ◽  
Leena Myllys ◽  
Arne Thell ◽  
...  
Keyword(s):  
Dna Sequence ◽  
Green Alga ◽  
Phylogenetic Relationships ◽  
Internal Transcribed Spacer ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Its Rdna ◽  
Dna Sequence Data

Lichens consist of a fungal component that associates with either a green alga or cynobacterium, resulting in diverse morphologies. Resynthesis experiments of isolated myco- and photobionts, as well as internal transcribed spacer (ITS) rDNA phylogenies, suggest that the notoriously dissimilar photomorphs of Lobaria fendleri (Tuck. ex Mont.) Lindau and Lobaria amplissima (Scop.) Forss. both have a single mycobiont, which can simultaneously lichenize two unrelated photobionts, a eukaryote and a prokaryote. In the phylogenetic analyses, the genera Sticta and Durietzia appear monophyletic; whereas Lobaria and Pseudocyphellaria are both nonmonophyletic. Furthermore, the phylogenetic relationships of Durietzia, Lobarina, and Sticta relative to Lobaria and Pseudocyphellaria are in need of re-evaluation.Key words: internal transcribed spacer (ITS), photosymbiodeme, phylogeny, lichen-forming fungi, Lobaria amplissima, Lobaria fendleri, Pseudocyphellaria, Sticta.

Two new species of Oobius (Hymenoptera: Encyrtidae) and their phylogenetic relationship with other congeners from northeastern Asia

2018 ◽  
Vol 150 (3) ◽  
pp. 303-316 ◽  
Author(s):  
Yan-Xia Yao ◽  
Jian J. Duan ◽  
Jason L. Mottern ◽  
Xiao-Yi Wang ◽  
Zhong-Qi Yang ◽  
...  
Keyword(s):  
New Species ◽  
Molecular Phylogenetics ◽  
Sequence Data ◽  
Emerald Ash Borer ◽  
Distinct Species ◽  
Agrilus Planipennis ◽  
Morphological Data ◽  
Dna Sequence Data ◽  
Two New Species ◽  
Phloem Feeding

AbstractTwo new species of egg parasitoids, Oobius saimaensis Yao and Mottern new species and Oobius fleischeri Yao and Duan new species (Hymenoptera: Encyrtidae), are described from eggs of Agrilus fleischeri Obenberger, 1925 (Coleoptera: Buprestidae). Agrilus fleischeri is a phloem-feeding woodborer of poplar (Populus Linnaeus; Salicaceae) in northeastern China. These two species can be distinguished morphologically as O. fleischeri has five tarsomeres and O. saimaensis has four tarsomeres. Although O. saimaensis is morphologically similar to its sympatric congener O. agrili Zhang and Hang, 2005, an important natural enemy of the invasive emerald ash borer, Agrilus planipennis Fairmaire, 1888, molecular phylogenetics and morphological data indicate that they are distinct species. Phylogenetic relationships among the new species and other closely related species are also inferred by using DNA sequence data from several ribosomal and mitochondrial genes. In addition, we expand the known distribution of Oobius primorskyensis Yao and Duan, 2016 to include South Korea.

Sign in / Sign up

Export Citation Format

Share Document