Calanthe × yarlungzangboensis, a new natural hybrid in genus Calanthe (Orchidaceae) from China

Phytotaxa ◽  
2021 ◽  
Vol 518 (2) ◽  
pp. 167-174
Author(s):  
PO-PO WU ◽  
ZI WANG ◽  
NING-XIA JIA ◽  
SHI-WEI GUO ◽  
CHANG-CHENG LIU ◽  
...  
Keyword(s):  
Morphological Traits ◽  
Coniferous Forest ◽  
Plastid Dna ◽  
Molecular Data ◽  
Natural Hybrid ◽  
Eastern Himalayas

Calanthe × yarlungzangboensis P. P. Wu & Z. Wang, a new natural hybrid was described and illustrated from Xizang, China. Calanthe griffithii and C. tricarinata were considered as putative parentage by morphological traits and molecular data from nrITS and two plastid DNA (rbcL and matK). Calanthe × yarlungzangboensis is easily distinguished from its parentage by mid-lobe with three tuberculatus lamellae. The new hybrid grows in subalpine evergreen coniferous forest dominated by Tsuga dumosa in the eastern Himalayas with elevation about 2500m.

Cymbidium motuoense (Orchidaceae; Epidendroideae), a new species from China: evidence from morphological and molecular data

Phytotaxa ◽  
2021 ◽  
Vol 509 (1) ◽  
Author(s):  
WENQI HU ◽  
QINGHAI ZHANG ◽  
GUIZHEN CHEN ◽  
MENGJIA ZHU ◽  
XIA YU ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Plastid Dna ◽  
Molecular Data ◽  
Natural Hybrid ◽  
Closely Related Species ◽  
Orchid Species ◽  
Molecular Analyses ◽  
Morphological And Molecular Data ◽  
A New Species

This study describes a new orchid species, Cymbidium motuoense, from Xizang, China based on morphological and molecular analyses. Several unique morphological features distinguish this new orchid from all other species of Cymbidium. Based on its morphology, this orchid is similar to C. tracyanum but differs in its yellow-green flower with dark purple-red spots on the veins, oblong-elliptic sepals, side lobes of the lip with reddish brown hairs along the veins and disc with three purple-red lamellae. Phylogenetic analyses based on plastid DNA (matK and rbcL) supported C. motuoense as a new species. However, the low support in nuclear ribosomal ITS tree provide the possibility that the new orchid may be a natural hybrid of C. tracyanum and C. iridioides or another closely related species.

Cymbidium weishanense (Orchidaceae; Epidendroideae), a new species from China: evidence from morphological and molecular data

Phytotaxa ◽  
2021 ◽  
Vol 500 (1) ◽  
pp. 45-50
Author(s):  
XIA YU ◽  
MENG-YAO ZENG ◽  
GUI-ZHEN CHEN ◽  
XIN-YU XU ◽  
YUAN-YANG BI ◽  
...  
Keyword(s):  
New Species ◽  
Yunnan Province ◽  
Plastid Dna ◽  
Molecular Data ◽  
Molecular Evidence ◽  
Natural Hybrid ◽  
Morphological Comparison ◽  
The Status ◽  
Morphological And Molecular Data ◽  
A New Species

A new species of Cymbidium (Orchidaceae), C. weishanense, from Yunnan Province, China, is illustrated and described based on morphological and molecular evidence. Morphological comparison indicates that C. weishanense is similar to C. concinnum but differs in several floral characteristics. Molecular analyses based on nuclear ribosomal (ITS) and plastid DNA (matK and rbcL) support the status of C. weishanense as a new species. Due to the low support for nrITS, it is possible that this is a natural hybrid of C. concinnum with C. insigne or another related species.

scholarly journals Taxonomic notes on Scutellaria taipeiensis (Lamiaceae) from morphological and molecular data

PhytoKeys ◽  
2020 ◽  
Vol 140 ◽  
pp. 33-45
Author(s):  
Chien-Ti Chao ◽  
Bing-Hong Huang ◽  
Jui-Tse Chang ◽  
Pei-Chun Liao
Keyword(s):  
Dna Sequence ◽  
Phylogenetic Relationships ◽  
Taxonomic Status ◽  
Plastid Dna ◽  
Single Species ◽  
Molecular Data ◽  
Sequence Information ◽  
Related Literature ◽  
Morphological And Molecular Data ◽  
Comprehensive Study

The genus Scutellaria comprises eight species distributed from 50 to 2000 m in Taiwan. Amongst them, S. barbata and S. taipeiensis are very similar on the basis of morphological and plastid DNA sequence information. Therefore, a comprehensive study of the taxonomic status of S. taipeiensis is necessary. We reviewed the herbarium sheets, related literature and protologues and compared morphologies of these two species, as well as their phylogenetic relationships. All evidence, including the diagnostic characters between S. taipeiensis and S. barbata, suggest that they belonged to a single species rather than two. As a result, S. taipeiensis is treated as a synonym of S. barbata.

Cymbidium xichouense (Orchidaceae; Epidendroideae), a new species from China: evidence from morphological and molecular data

Phytotaxa ◽  
2021 ◽  
Vol 484 (3) ◽  
pp. 291-297
Author(s):  
XINYU XU ◽  
CHANG-CHUN DING ◽  
WENQI HU ◽  
XIA YU ◽  
YU ZHENG ◽  
...  
Keyword(s):  
New Species ◽  
Yunnan Province ◽  
Phylogenetic Analyses ◽  
Plastid Dna ◽  
Molecular Data ◽  
Morphological Evidence ◽  
The Status ◽  
Nuclear Its ◽  
Morphological And Molecular Data ◽  
A New Species

A new species of Cymbidium (Orchidaceae), Cymbidium xichouense, from Yunnan Province, China, is described and illustrated based on morphological evidence and molecular analyses. The new orchid is morphologically similar to C. qinbeiense, but it has several morphological features that distinguish it from C. qiubeinense and all other recognized species in Cymbidium. Phylogenetic analyses based on nuclear (ITS) and plastid DNA (matK) were conducted, and the results also supported the status of C. xichouense as a new species, which is sister to C. qiubeiense.

scholarly journals Assessment of relationships among and within Helichrysum Mill. (Asteraceae) species by using ISSR markers and morphological traits

Hacquetia ◽  
2019 ◽  
Vol 18 (1) ◽  
pp. 105-118 ◽  
Author(s):  
Narjes Azizi ◽  
Masoud Sheidai ◽  
Valiollah Mozaffarian ◽  
Mitra Arman ◽  
Zahra Noormohammadi
Keyword(s):  
Genetic Similarity ◽  
Morphological Traits ◽  
Morphological Analysis ◽  
Gene Diversity ◽  
Molecular Data ◽  
Issr Markers ◽  
Diagnostic Features ◽  
Analysis Of Molecular Variance ◽  
Information Index ◽  
Expected Heterozygosity

Abstract This study conducted to determine relationship among and within Iranian Helichrysum species (Asteraceae). In this study based on ISSR markers, the highest percentage of ISSR loci polymorphism (54.7%) occurred in H. armenium. The highest gene diversity over loci (1.224), Shannon’s Information Index (0.224%) and Expected Heterozygosity (0.142%) occurred in H. armenium (0.18) and the lowest of these parameters (0%) were observed in H. araxinum, H. graveolens, H. persicum and H. psychrophilum. The highest genetic similarity occurred between H. armenium and H. rubicundum (0.989), while the lowest was between H. polyphyllum and H. graveolens (0.213). The analysis of molecular variance (AMOVA), showed significant genetic variation among (24%) and within (76%) species. In morphological analysis traits such as indumentum, resting bud, achene length, achenial papillae, dimension of receptacle and form and apex of phyllaries were main diagnostic features. Results obtained from the morphological cluster were greatly consistent with the molecular data, to elucidating taxonomic relationships, as well as both attributed the higher diversity in H. armenium and H. rubicundum in comparison with other species and also indicated that H. persicum is a member of H. oocephalum species. Totally we confirmed the presence of 18 species in Iran.

Allium urusakiorum (Amaryllidaceae), a new member of the Balkan clade of the section Oreiprason from European Turkey

Phytotaxa ◽  
2016 ◽  
Vol 275 (3) ◽  
pp. 228
Author(s):  
MINE KOÇYIĞIT ◽  
ALEXEY P. SEREGIN ◽  
NERIMAN ÖZHATAY ◽  
NIKOLAI FRIESEN
Keyword(s):  
New Species ◽  
Plastid Dna ◽  
Morphological Characters ◽  
Molecular Data ◽  
Morphological Description ◽  
Herbarium Specimens ◽  
Turkish Flora ◽  
Molecular Dataset ◽  
Morphological And Molecular Data ◽  
A New Species

The taxonomy of the Allium saxatile group (sect. Oreiprason) has been studied recently upon morphological and molecular data. New specimens collected from the European part of Turkey near the Istranca Mountains and identified as ‘A. saxatile’ proved to be a new species confirmed by sequences of internal transcribed spacer (ITS) and two plastid DNA regions (rpl32–trnL and trnL–trnF) and supported by morphological characters. Allium urusakiorum, a new species from the A. saxatile group, is described here through living and herbarium specimens. It is the only species of the sect. Oreiprason in the country and seems to be an endemic species of the Turkish flora. Characteristics of the species include morphological description, identification key, molecular dataset, and karyotype (2n = 16).

scholarly journals Assessing Genetic Variability of Pelargonium Species Using PCR-based TRAP Markers

HortScience ◽  
2004 ◽  
Vol 39 (4) ◽  
pp. 812D-812
Author(s):  
Wai-Foong Hong ◽  
Chang-Qing Bai ◽  
Michael Broe ◽  
Jinguo Hu ◽  
Charles Krause ◽  
...  
Keyword(s):  
Cluster Analysis ◽  
Genetic Variation ◽  
Genetic Variability ◽  
Morphological Traits ◽  
Molecular Data ◽  
Ornamental Plant ◽  
Target Region ◽  
Marker System ◽  
Highly Correlated

Pelargonium is one of the important flower crops in USA. It is a priority genus for conservation at the USDA Ornamental Plant Germplasm Center (OPGC). It belongs to Geraniaceae family and comprises of about 280 species. To understand the genetic variation of the Pelargonium collection at OPGC, the PCR-based TRAP (target region amplified polymorphism) marker system which was newly developed in sunflower was used in this study. Twelve sets of primers were used to fingerprint 46 accessions representing 21 commercial P. hortorum, 17 scented geraniums and 8 other unidentified Pelargonium taxa. About 150 DNA bands could be detected in each primer and accession combination. Cluster analysis showed that molecular data was highly correlated with the phenotypes. Cultivars with similar morphological traits were clustered together. These results demonstrated that the TRAP system is a useful technique for the characterization and classification of Pelargonium collections.

The genealogy of geebungs: phylogenetic analysis of Persoonia (Proteaceae) and related genera in subfamily Persoonioideae

2018 ◽  
Vol 31 (2) ◽  
pp. 166
Author(s):  
Gareth D. Holmes ◽  
Peter H. Weston ◽  
Daniel J. Murphy ◽  
Carolyn Connelly ◽  
David J. Cantrill
Keyword(s):  
Western Australia ◽  
New Caledonia ◽  
Plastid Dna ◽  
Morphological Characters ◽  
Molecular Data ◽  
Morphological Data ◽  
Rdna Its ◽  
Eastern Australia ◽  
Group Relationships ◽  
Informal Groups

Proteaceae subfamily Persoonioideae, as presently circumscribed, consists of the monogeneric tribe Placospermeae (Placospermum) and the tribe Persoonieae. The latter comprises the diverse genus Persoonia and monospecific genera found in New Zealand (Toronia), New Caledonia (Garnieria) and south-western Western Australia (Acidonia). Persoonia has 101 species distributed across Australia and has been classified into 11 informal groups. Using data derived from plastid DNA (trnL–trnF region), nuclear rDNA (ITS) and morphological characters, we constructed a phylogeny of Persoonioideae and compared the results to the existing classification. Bayesian and parsimony analyses indicated that Persoonia, as currently defined, is non-monophyletic. The molecular data and combined molecular and morphological data place Toronia in a moderately well supported clade with the monophyletic Rufiflora group of Persoonia from Western Australia. This clade is sister to Acidonia, Garnieria and the remaining Persoonia species. Of the other informal groups in Persoonia, the Teretifolia, Quinquenervis, Laurina, Arborea, Graminea and Chapmaniana groups are supported as monophyletic. The Lanceolata group can be re-circumscribed to be monophyletic by the addition of P. elliptica R.Br. (Longifolia group) and the Dillwynioides group. Relationships within this large, geographically widespread clade are largely unresolved and low DNA-sequence variation within it suggests a recent radiation followed by isolation in south-western and eastern Australia. All endemic Tasmanian Persoonia (Gunnii group taxa) are unresolved at the second-most basal node of the Persoonieae. Our results suggest that the Rufiflora group should be treated as a new genus and that the infrageneric taxonomy of Persoonia requires minor amendment.

The taxonomic status of Cryptobatrachus frogs (Anura: Hemiphractidae) from the Serranía del Perijá

Zootaxa ◽  
2021 ◽  
Vol 5068 (2) ◽  
pp. 247-262
Author(s):  
FABIO LEONARDO MEZA-JOYA ◽  
ELIANA RAMOS ◽  
FERNANDO J. M. ROJAS-RUNJAIC ◽  
ANDRÉS OVALLE-PACHECO
Keyword(s):  
Dna Sequences ◽  
Genetic Divergence ◽  
Morphological Traits ◽  
Phylogenetic Analyses ◽  
Taxonomic Status ◽  
Molecular Data ◽  
The Other ◽  
Taxon Sampling ◽  
Morphological Similarity ◽  
Morphological And Molecular Data

The Neotropical frog genus Cryptobatrachus includes six currently recognized species distributed throughout the northern Andes in Colombia and Venezuela. Cryptobatrachus conditus, C. pedroruizi, and C. remotus were described from the Colombian and Venezuelan slopes of the Serranía del Perijá. Due to the great morphological similarity among these species, we re-assess their taxonomic status based on morphological and molecular data from types, topotypes, and specimens from localities referred to in the original descriptions of these species. Morphometric comparisons showed that all these species are virtually indistinguishable, although some subtle qualitative differences in morphological traits distinguish C. conditus from the other species. Phylogenetic analyses of DNA sequences found that C. remotus and C. pedroruizi are not reciprocally monophyletic and exhibit low genetic divergence (< 1 %). Therefore, C. remotus should be considered a junior synonym of C. pedroruizi. This work stresses the importance of comprehensive taxon sampling in poorly explored areas, especially between neighbouring countries.  

Sorting out the muddle: taxonomy and nomenclature of Thymus ×porcii (Lamiaceae) and related nothotaxa, with comments on parent species delimitation

Phytotaxa ◽  
2021 ◽  
Vol 501 (1) ◽  
pp. 119-139
Author(s):  
VIKTOR O. NACHYCHKO ◽  
YEVHEN V. SOSNOVSKY
Keyword(s):  
Species Delimitation ◽  
Parental Species ◽  
Molecular Data ◽  
Forest Steppe ◽  
Original Material ◽  
Parent Species ◽  
Natural Hybrid ◽  
Separate Species ◽  
Diagnostic Traits

Thymus ×porcii is a natural hybrid between T. pannonicus and T. pulegioides, occurring within the co-occurrence range of its parental species in the forest and forest-steppe zones of Europe. Taxonomy and nomenclature of this hybrid present a longstanding puzzle due to the lack of critical evaluations of the original material as well as conflicting taxonomic interpretations of the parent taxa both at specific and intraspecific levels. The present paper attempts to clarify these issues, arguing against the synonymic treatment and/or consolidation of T. pannonicus and T. pulegioides, which is accepted in modern taxonomies apparently as a result of nomenclatural confusion related to T. pannonicus typification. Based on morphology and reported molecular data, it is proposed to treat T. pannonicus and T. pulegioides as separate species, each containing two varieties being well-distinguished by the presence or absence of leaf indumentum: T. pannonicus var. latifolius (glabrous leaves) and T. pannonicus var. pannonicus (pubescent leaves), and T. pulegioides var. pulegioides (glabrous leaves) and T. pulegioides var. vestitus (pubescent leaves). In view of such treatment, T. ×porcii is divided into three nothovarieties, representing natural crosses between different varieties of the parent species. Namely, in addition to the typical T. ×porcii nothovar. porcii [T. pannonicus var. latifolius × T. pulegioides var. pulegioides] (with T. ×pilisiensis and T. ×goginae as the taxonomic synonyms), we describe a new nothovariety T. ×porcii nothovar. calvariensis [T. pannonicus var. pannonicus × T. pulegioides var. pulegioides], and propose a new nomenclatural combination T. ×porcii nothovar. opizii [T. pannonicus × T. pulegioides var. vestitus] based on the previously published name T. ×opizii. On the basis of original material examination, two collections from BP are designated here as the lectotypes of T. ×porcii (≡ T. ×porcii nothovar. porcii) and T. ×pilisiensis respectively, and one specimen from PR is designated as the lectotype of T. ×opizii (≡ T. ×porcii nothovar. opizii). Main diagnostic traits of T. ×porcii nothovarieties and their parental taxa are compared and discussed.

Sign in / Sign up

Export Citation Format

Share Document