An updated generic circumscription for Cryptangieae (Cyperaceae, Poales) based on a molecular phylogeny and a morphological character reconstruction

Phytotaxa ◽  
2021 ◽  
Vol 483 (3) ◽  
pp. 211-228
Author(s):  
SUZANA M. COSTA ◽  
FABIO A. VITTA ◽  
WILLIAM W. THOMAS ◽  
A. MUTHAMA MUASYA ◽  
ROSEMERI MOROKAWA ◽  
...  

Cryptangieae is a monophyletic tribe, as asserted in a recent molecular hypothesis, but there are questions about the circumscription and relationships of its genera. We enlarged the sampling of the tribe diversity, including about 80% of known species, and provide new analyses using single and combined matrices from two chloroplast (rbcL and trnL-F) and three nuclear ribosomal (ITS, ETS and 5S-NTS) regions with Bayesian Inference to clarify these questions. We also performed character reconstruction analyses with diagnostic morphological characters, including some traditionally applied in Cryptangieae taxonomy, using parsimony methods. The molecular analyses show Lagenocarpus in the current circumscription as polyphyletic, and the need to merge Cephalocarpus and Everardia to avoid paraphyletic genera. We propose an updated circumscription following the phylogeny, including a new name to a group at generic level (Krenakia); and discuss the phylogenetic significance of the morphological characters in Cryptangieae taxonomy. Though the relationship among some genera still needs more research, the genera we propose are strongly supported clades with clear morphological synapomorphies. Additionally, we provide an identification key, a brief description of genera and a list of accepted species including the required new combinations.

2016 ◽  
Vol 47 (1) ◽  
pp. 53-82 ◽  
Author(s):  
Werner P. Strümpher ◽  
Martin H. Villet ◽  
Catherine L. Sole ◽  
Clarke H. Scholtz

Extant genera and subgenera of the Trogidae (Coleoptera: Scarabaeoidea) are reviewed. Contemporary classifications of this family have been based exclusively on morphological characters. The first molecular phylogeny for the family recently provided strong support for the relationships between morphologically defined genera and subgenera. On the basis of morphological, molecular and biogeographical evidence, certain taxonomic changes to the genus-level classification of the family are now proposed. The family is confirmed as consisting of two subfamilies, Omorginae Nikolajev and Troginae MacLeay, the former with two genera,OmorgusErichson andPolynoncusBurmeister, and the latter with two genera,TroxFabricius andPhoberusMacLeaystat. rev.Phoberusis restored to generic rank to include all Afrotropical (including Madagascan endemic) species;Afromorgusis confirmed at subgeneric rank within the genusOmorgus; and the monotypic Madagascan genusMadagatroxsyn. n.is synonymised withPhoberus.The current synonymies ofPseudotroxRobinson (withTrox),ChesasBurmeister,LagopelusBurmeister andMegalotroxPreudhomme de Borre (all withOmorgus) are all accepted to avoid creating speculative synonyms before definitive phylogenetic evidence is available. New combinations resulting from restoringPhoberusto a monophyletic genus are listed in Appendix A.


Zootaxa ◽  
2008 ◽  
Vol 1736 (1) ◽  
pp. 1 ◽  
Author(s):  
CATHERINE J. YOUNG

The Australian Nacophorini and related taxa are described using a matrix of 116 adult morphological characters. Adults of 72 species are illustrated using photographs and electron micrographs. Subsets of the characters are used to conduct a phylogenetic analysis based on cladistic principles. The adult morphological character set was augmented with 17 characters from eggs and 27 from larvae. The resulting phylogeny is poorly resolved but provides support for many of the relationships recovered by previous molecular analyses of the group, including basal derivations for characters of Larentiinae and Sterrhinae relative to those of the rest of Geometridae, and the monophyly of the Geometrinae + Oenochrominae s. str. Combining 28S D2 datawith morphological data produced a matrix of 60 taxa and 590 characters. The majority rule consensus tree produced by the combined morphological and 28S D2 data is almost identical to the majority rule consensus tree produced by the 28S D2 data alone, except that bootstrap support is lower for most nodes. Common clades obtained from the molecular and morphological trees are described in terms of morphological data. On this basis a concept of the Australian Nacophorini includes Lithinini and Australian Archiearinae. Two robust groups within the tribe also are delimited using characters from all data sources. Comparsions are made between the Nearctic and Neotropical Nacophorini on the basis of shared morphological characters. Australian Boarmiini are defined by synapomorphies.


ZooKeys ◽  
2020 ◽  
Vol 985 ◽  
pp. 71-126
Author(s):  
Jose I. Martinez

The endemic Neotropical genus Gaujonia Dognin is revised. Morphological characters and a phylogenetic analysis demonstrate paraphyletic relationships among the species. Four different groups are interpreted to represent four different genera. The G. arbosi group is the only remaining clade in the genus Gaujonia, and the other groups have been arranged into three new genera: Milleranagen. nov., Oculicattusgen. nov., and Cicadoformagen. nov. Additionally, two other genera Cicadomorphusgen. nov., and Gaujopteragen. nov. were found using morphological and molecular analyses based on some specimens that were misidentified as Gaujonia spp. A total of five new genera, three new combinations (Cicadoforma vau-nigrum Hampson, comb. nov., Oculicattus renifera Hampson, comb. nov., and Millerana arbosioides Dognin, comb. nov.) and 21 new species (Cicadoforma ocelotussp. nov., Cicadomorphus chicharrasp. nov., Cicadomorphus chuyasp. nov., Cicadomorphus falkasiskasp. nov., Cicadomorphus lilianaesp. nov., Gaujonia bichusp. nov., Gaujonia chiqyaqsp. nov., Gaujonia kanakusikasp. nov., Gaujonia sourakovisp. nov., Gaujoptera amsasp. nov., Millerana austinisp. nov., Millerana cajassp. nov., Millerana cundinamarquensissp. nov., Millerana matthewsaesp. nov., Millerana tigrinasp. nov., Oculicattus bolivianasp. nov., Oculicattus brehmisp. nov., Oculicattus incasp. nov., Oculicattus raizaesp. nov., Oculicattus schmidtisp. nov., and Oculicattus uturunkusp. nov.) are established.


2021 ◽  
Vol 35 (7) ◽  
pp. 725
Author(s):  
Xiang Zeng ◽  
Haiyang Xu ◽  
Jingxiao Gu ◽  
Benyong Mao ◽  
Zhilin Chen ◽  
...  

Many taxa in the Acrididae have controversial phylogenetic positions. A typical example of such controversies is the phylogenetic positions of the genera Caryandoides, Paratoacris, Fer and Longchuanacris, as well as some other related taxa, which were placed in Oxyinae by some authors, but were considered members of the subfamily Catantopinae by others. In this study, the complete mitogenomes of nine species were sequenced using next-generation sequencing, the characteristics of the newly sequenced mitogenomes are presented briefly, and the phylogeny of the Oxyinae and Catantopinae are reconstructed using a selected dataset of mitogenome sequences under maximum likelihood and Bayesian inference frameworks. The results show that the four controversial genera were consistently assigned to the subfamily Oxyinae rather than Catantopinae in all phylogenetic trees deduced from different datasets under different frameworks, and this finding is entirely consistent with their morphological characters. Therefore, it is more appropriate to place them in Oxyinae rather than Catantopinae. In addition, the results from our analysis also confirm the membership of the genus Apalacris in Coptacrinae rather than Catantopinae, and indicate the uncertainty in the phylogenetic position of the genus Traulia, and a more in-depth study is necessary to resolve the relationship of Traulia with other catantopine groups or Coptacrinae.


2012 ◽  
Vol 25 (5) ◽  
pp. 341 ◽  
Author(s):  
Trevor C. Wilson ◽  
Barry J. Conn ◽  
Murray J. Henwood

Prostanthera is the largest genus of Lamiaceae in Australia and was last comprehensively revised in 1870. To test the classification, and the homology of the morphological characters on which it is based, we analysed nuclear (ETS) and chloroplast (trnT–F and ndhF–rpl32) sequence data for 71 species of Westringieae (Lamiaceae) in separate and combined datasets by using maximum-parsimony and Bayesian-inference methods. Results supported the monophyly of the Westringieae, but indicated that Prostanthera is paraphyletic with respect to Wrixonia, requiring the latter to be synonymised with the former. Although combinations of datasets provided some degree of infrageneric resolution within Prostanthera sensu lato, none of its sections or series could be recovered unambiguously. Prostanthera section Prostanthera and P. section Klanderia (regarded as entomophilous and ornithophilous, respectively) did not form a sister relationship, and neither could be unequivocally resolved as monophyletic. However, all species of P. section Klanderia nested within P. section Prostanthera raising the possibility that P. section Prostanthera is paraphyletic. Similarly, the phylogeny of Prostanthera based on molecular data could not be reconciled with the morphological definition of the traditionally recognised series. We recommend abandoning Bentham’s series as a means of organising morphological variation within the genus, but acknowledge that it is premature to discard Bentham’s sections. The evolutionary and systematic implications of the lack of congruence between our molecular phylogeny and morphologically defined subgeneric taxa are discussed.


2017 ◽  
Vol 10 (1) ◽  
pp. 32 ◽  
Author(s):  
Endang Hadipoentyanti ◽  
Sri Wahyuni

<p><strong>Abstract</strong></p><p>Coriander (Coriandrum sativum L.) is an annual crop, limitedly cultivated in the high land areas. Based on the fruit shape the plant could be groped into three types: globularsmall, globular-big, and ovoid. There were 13 accession numbers of coriander collected from production area in Indonesia or other countries. They were varied in fruit shape and some of morphological characters. To analyze the relationship among the accession based on morphological character, the plant was planted at Manoko, Lembang (1200 m asl). Morphological characters were observed from 10 plant and based on the resulted data, analysis of genetic resemblance were carried out using average taxonomic distance of dissimilarity with NTSYSpc-2.1. Results showed that the accession of coriander can be classified into four groups. The first group only consist of introduced cultivar from Japan, the second group consist of coriander collected from Sungaitarap, Padanglawas, Sumbar, Sungayang, Madiun, Irak, Thailand, and Mesir, where each introduced cultivar made an exclusive sub group. The third group are cultivar collected from Jember and Cipanas, while the fourth groups are cultivar collected from Kadipekso and Temanggung. Collected cultivars from nearby areas tended to belong to the same group.</p><p><strong>Abstrak</strong></p><p><strong>Abstrak</strong></p><p>Ketumbar (Coriandrum sativum L.) merupakan tanaman herba setahun, dan umumnya dibudidayakan secara terbatas di dataran tinggi. Berdasarkan bentuk buahnya, dapat dibedakan ke dalam tiga tipe, yaitu bentuk buah bulat kecil, bulat besar, dan lonjong. Hasil pengumpulan ketumbar dari beberapa sentra produksi maupun introduksi telah diperoleh sebanyak 13 nomor dengan penampakan buah yang bervariasi. Pada penelitian ini dilakukan pengelompokan koleksi ketumbar berdasarkan sifat morfologi. Benih ditanam di Manoko pada ketinggian tempat 1200 m dpl. Pengamatan morfologi dilakukan terhadap 10 tanaman contoh. Data morfologi dianalisis mengunakan metode jarak average taxonomic distance of dissimilarity dengan paket program NTSYSpc-2.1. Hasil analisis menunjukkan bahwa koleksi ketumbar terbagi ke dalam empat kelompok, yaitu kelompok I yang hanya terdiri atas kultivar asal Jepang. Kelompok II adalah kultivar asal Sungaitarap, Padanglawas, Sumbar, Sungayang, Irak, Thailand, Mesir, dan Madiun. Tiga kultivar introduksi membentuk subkelompok tersendiri. Kelompok III adalah kultivar asal Jember dan Cipanas, sedangkan kelompok IV adalah kultivar asal Kadipekso dan Temanggung. Kultivar yang dikoleksi dari daerah yang berdekatan cenderung membentuk kelompok yang sama</p>


2001 ◽  
Vol 58 (2) ◽  
pp. 183-200 ◽  
Author(s):  
G. M. PLUNKETT

Phylogenetic relationships involving the angiosperm order Apiales (Apiaceae and Araliaceae) are troublesome at nearly every taxonomic level and have eluded several generations of botanists. Because of difficulties in interpreting and polarizing morphological character states at deeper phylogenetic levels, most studies in Apiales have focused on relationships between the two families and among/within the apialean genera. In the present study, however, recent contributions from molecular analyses are reviewed and combined using a ‘supertree’ approach to test traditional hypotheses of relationships involving Apiales, and to re-evaluate assumptions of character-state evolution in the order. Results from this study confirm that Apiales form a monophyletic group with Pittosporaceae (along with Griselinia G. Forst., Melanophylla Baker, Torricellia DC. and Aralidium Miq.), and should be transferred out of subclass Rosidae (away from both Cornales and Sapindales) to the Asteridae (in a position close to Asterales and Dipsacales). These findings are also supported by several lines of morphological, anatomical, and phytochemical evidence, and provide a more satisfactory framework for interpreting relationships and character-state evolution within the major clades of Apiales.


Author(s):  
Cristiano S Costa ◽  
Gonzalo Giribet FLS ◽  
Ricardo Pinto-Da-Rocha

Abstract Onychophora, or velvet worms, are a key group for understanding ecdysozoan evolution. It comprises two families: Peripatopsidae, largely of Austral distribution, and Peripatidae, which is circumtropical. The interrelationships between the members of Peripatidae present many taxonomic issues exacerbated in the radiation of the Neotropical species or Neopatida. To understand the phylogeny of Neopatida, and to test the information of such morphological characters, we gathered novel molecular and morphological datasets focusing on Neotropical specimens. Our data were analysed using a combination of parsimony and maximum likelihood for the individual and combined molecular and morphological datasets. An analysis of morphology alone was inconclusive, supporting the notion that morphological characters used in peripatid taxonomy have little power to resolve phylogenetic relationships among higher taxa in Neopatida. However, the analyses of molecular or combined data show a split of the Neotropical species into two clades, which we use to reassign genera. Epiperipatus, as currently understood, is non-monophyletic, because it includes species of monotypic genera. To avoid paraphyly of Epiperipatus, the following new combinations are proposed: Epiperipatus bouvieri (Fuhrmann, 1913), Epiperipatus hitoyensis (Oliveira et al., 2012a), Epiperipatus solorzanoi (Morera-Brenes & Monge-Nájera, 2010) and Epiperipatus sucuriuensis (Oliveira et al., 2015).


Phytotaxa ◽  
2019 ◽  
Vol 405 (2) ◽  
pp. 65
Author(s):  
ABDOLLAH AHMADPOUR

Alternaria section Nimbya, currently contains six species which are pathogens of members of the Juncaceae and Cyperaceae plant families. The prominent morphological character in the members of this section is internal compartmentation of conidia into conspicuous angular lumina interconnected by narrow channels through the transverse distosepta and fewer transverse eusepta. In the study on fungi from culm lesions of Carex sp. (Cyperaceae) from West Azarbaijan province, Iran, four isolates with typical characteristics of Alternaria were isolated and studied taxonomically. Based on combination of morphological characters and molecular phylogeny based on ITS–rDNA and glyceraldehyde-3-phosphate dehydrogenase (GAPDH) gene sequences, the isolates represent a new undescribed species of Alternaria in the section Nimbya, which is described here as Alternaria caricicola sp. nov. The new species is characterized by straight to slightly curved obclavate conidia with 6–14 transverse distosepta, 1–4 darkened eusepta, and an unbranched, tapering apical beak. A detailed description and illustrations are provided and compared with similar taxa in the section Nimbya.


2017 ◽  
Vol 31 (4) ◽  
pp. 427 ◽  
Author(s):  
Nan Jiang ◽  
Xinxin Li ◽  
Axel Hausmann ◽  
Rui Cheng ◽  
Dayong Xue ◽  
...  

Owing to the high species diversity and the lack of a modern revision, the phylogenetic relationships within the tribe Boarmiini remain largely unexplored. In this study, we reconstruct the first molecular phylogeny of the Palaearctic and Oriental members of Boarmiini, and infer the relationships among tribes within the ‘boarmiine’ lineage. One mitochondrial (COI) and four nuclear (EF-1α, CAD, RpS5, GAPDH) genes for 56 genera and 96 species of Boarmiini mostly from the Palaearctic and Oriental regions were included in the study. Analyses of Bayesian inference and maximum likelihood recovered largely congruent results. The monophyly of Boarmiini is supported by our results. Seven clades and seven subclades within Boarmiini were found. The molecular results coupled with morphological studies suggested the synonymisation of Zanclopera Warren, 1894, syn. nov. with Krananda Moore, 1868. The following new combinations are proposed: Krananda straminearia (Leech, 1897) (comb. nov.), Krananda falcata (Warren, 1894) (comb. nov.), and Krananda fulva (Yazaki, 1994) (comb. nov.). Our results also supported the monophyly of the ‘boarmiine’ lineage. Boarmiini were recovered as sister to the remaining taxa within the ‘boarmiine’ lineage, and Macariini were recovered as sister to Abraxini, Eutoeini and Cassymini.


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