Red algal diversity (Rhodophyta) from Peru based on molecular analysis

Phytotaxa ◽  
2020 ◽  
Vol 454 (1) ◽  
pp. 1-23
Author(s):  
MARTHA S. CALDERON ◽  
DANILO E. BUSTAMANTE ◽  
SUNG MIN BOO
Keyword(s):  
Dna Sequences ◽  
Red Algae ◽  
Morphological Analysis ◽  
Algal Diversity ◽  
Molecular Approaches ◽  
The Family ◽  
Red Algal ◽  
Marine Flora ◽  
First Time ◽  
Ongoing Project

In Peru, an ongoing project has been to document the marine macroalgal biodiversity using molecular approaches because, to date, the Peruvian marine flora has been mostly characterized on the basis of morphological observations. We herein report on red algae collected along the coast of Peru, including specimens collected at historically important collecting sites, in order to provide a better understanding of Peruvian red algal diversity. Using phylogenetic analysis of rbcL DNA sequences, we report for the first time the occurrence of Nothogenia chilensis, Porphyra mumfordii, and Schizymenia dubyi in Peru. Results from molecular and morphological analysis of topotype material show that Chondracanthus glomeratus (M.Howe) Guiry is conspecific with C. chamissoi (C.Agardh) Kützing. Both Rhodymenia howeana E.Y.Dawson and R. multidigitata E.Y.Dawson, Acleto & Foldvik are proposed to be later taxonomic synonyms of R. corallina (Bory) Greville. Future studies will reveal more diversity of red algae from Peru with special emphasis on members of the family Bangiaceae, Delesseriaceae, and Lithophyllaceae.

scholarly journals First Anthomyzidae (Diptera) from China: a new genus, six new species and new records

2018 ◽  
Vol 58 (1) ◽  
pp. 35-76 ◽  
Author(s):  
Jindřich Roháček
Keyword(s):  
New Species ◽  
East Asia ◽  
Dna Sequences ◽  
New Genus ◽  
New Records ◽  
Molecular Barcoding ◽  
The Family ◽  
First Time

The family Anthomyzidae (Diptera: Acalyptrata) is recorded from China for the first time based on 11 species, 6 of them new to science. A distinctive new genus Marshallya gen. nov. is described, based on single peculiar species, M. platythorax sp. nov. (both sexes) from Sichuan. Other new species, viz. Amygdalops sevciki sp. nov. (Hainan I.) (both sexes), Epischnomyia tkoci sp. nov. (Sichuan) (male only), Anthomyza ornata sp. nov. (Sichuan) (female only), Anthomyza sulphurea sp. nov. (Yunnan) (both sexes) and Arganthomyza hyperseta sp. nov. (Shaanxi) (male only) are described and illustrated in detail. Male-female association of two Amygdalops species is clarified by means of molecular barcoding and the female of A. bisinus Roháček, 2008 is correctly identifi ed and described. Relationships of all these taxa are discussed. Five species, viz. Amygdalops bisinus (Hainan I.), Epischnomyia merzi Roháček, 2009, Anthomyza cuneata Roháček, 1987, Anthomyza trifurca Sueyoshi & Roháček, 2003 (all from Sichuan) and Arganthomyza versitheca Roháček, 2009 (Shaanxi, Sichuan) are new additions to the Chinese fauna of Anthomyzidae. DNA sequences of the barcoding region of COI have been obtained for 3 species, Amygdalops bisinus, Amygdalops sevciki and Marshallya platythorax. Biology and distribution of all 11 species are discussed. First photographs of living Anthomyzidae from East Asia are presented. Based on knowledge of Anthomyzidae from neighbouring areas the diversity of the Chinese fauna of the family is estimated to include 50-60 species.

Actin rings in cytokinesis of apical cells in red algae

1996 ◽  
Vol 74 (6) ◽  
pp. 971-974 ◽  
Author(s):  
David J. Garbary ◽  
A. Rosa McDonald
Keyword(s):  
Cell Division ◽  
Red Algae ◽  
Ring Formation ◽  
Transverse Wall ◽  
Actin Ring ◽  
Dense Ring ◽  
Red Algal ◽  
First Time ◽  
Actin Rings ◽  
Peripheral Cytoplasm

Actin rings are demonstrated for the first time in florideophyte red algae in Audouinella botryocarpa (Acrochaetiales) and Tiffaniella snyderae and Griffithsia pacifica (Ceramiales). Rings formed a complete circle in the peripheral cytoplasm prior to the development of the septum by furrowing. In the uninucleate A. botryocarpa, ring formation precedes mitosis. In all species F-actin initially has a diffuse to longitudinal alignment throughout the cell. The actin realigns and then contracts to form a dense actin ring. Following cell division, aggregations of actin are maintained along the transverse wall in at least G. pacifica and A. botryocarpa, and a dense ring of actin was observed around a pit plug in T. snyderae. The occurrence of actin rings in cell division of members of the Acrochaetiales and Ceramiales is consistent with ultrastructural observations on red algal unicells and suggests that actin rings are part of the ancestral cytokinetic mechanism in red algae. Keywords: actin rings, cell division, cytokinesis, cytoskeleton, microfilaments, Rhodophyta.

scholarly journals New Data on Distribution and Morphological Characters of Cladocera (Daphniidae Straus, 1820) and Copepoda (Diaptomidae Sars, 1903, Cyclopidae Dana, 1846) in Lake Baikal

2020 ◽  
Vol 31 ◽  
pp. 76-92
Author(s):  
N. G. Sheveleva ◽  
◽  
E. A. Misharina ◽  
N .V. Makarkina ◽  
◽  
...  
Keyword(s):  
Species Diversity ◽  
Lake Baikal ◽  
Morphological Analysis ◽  
Morphological Characters ◽  
Water Bodies ◽  
Eastern Siberia ◽  
The South ◽  
First Finding ◽  
The Family ◽  
First Time

The species diversity of the superclass Crustacea only in Lake Baikal has 58 species of the superorder Cladocera and 52 species and subspecies from the subclass Соpepoda, 5 of them belong to the order Calanoida and 47 to the order Cyclopoida. Species that inhabit the waters of Olkhon Island are not included in this list. On the island there are temporary and permanent reservoirs, which by the chemical composition of the water are fresh or brackish. The species diversity of the island crustaceans includes 28 species, of which only 64 % are known for Baikal. This article gives a brief description of the morphology of rare and small species from the family Daphniidae: Ceriodaphnia megops Sars 1985; Diaptomidae: Arctodiaptomus (A.) wierzejskii (Richard, 1888) and Cyclopidae: Eucyclops arcanus Alekseev, 1990. The first two species were found in Lake Baikal, the third species – on Olkhon Island. Morphological analysis of the species was performed by means of a scanning electron microscope (SEM). A detailed description of the morphological features of C. megops, A. (A.) wierzejskii female and male, and E. arcanus female with illustrations is presented. Data on diaptomus and cyclopoid mouth appendages, tables with biometrical parameters of a cyclopoid are provided. Images of cyclopoid Р1–Р4 coxopodite and basal exopodite segment are shown for the first time. C. megops and A. (A.) wierzeskii crustaceans are rare species in the water bodies of the south of Central Asia, including Mongolia. A. (A.) wierzeskii population is the first finding in the water bodies of the south of Eastern Siberia and Baikal.

Notes on calycophyllous Rubiaceae. Part V. A succinct overview of genera with calycophylls, and a revision of Pteridocalyx (Sipaneeae) with observations on distyly and calycophyll variation

Phytotaxa ◽  
2019 ◽  
Vol 391 (1) ◽  
pp. 81
Author(s):  
PIERO G. DELPRETE
Keyword(s):  
Morphological Analysis ◽  
Systematic Position ◽  
Herbarium Specimens ◽  
Field Observations ◽  
Short Discussion ◽  
The Family ◽  
First Time

The first part of this paper includes a short discussion on calycophylls in Rubiaceae, followed by a succinct overview of calycophyllous genera and their systematic position within the family (subfamilies and tribes). The second part is focused on Pteridocalyx, the sole genus of the tribe Sipaneeae with calycophylls, until recently only known by three historic collections (including two type gatherings) from Guyana. Recent field observations and collection of numerous herbarium specimens permitted a detailed study of this genus, which is here reported for the first time to have distylous flowers. Two species were described in the genus. As a result of a detailed morphological analysis, Pteridocalyx is here treated as monospecific, and is here illustrated for the first time.

A catalogue and bibliography of non-marine (freshwater and estuarine) Rhodophyta (red algae) of India

Phytotaxa ◽  
2018 ◽  
Vol 364 (1) ◽  
pp. 1 ◽  
Author(s):  
E. K. GANESAN ◽  
JOHN A. WEST ◽  
ORLANDO NECCHI JR.
Keyword(s):  
Red Algae ◽  
Molecular Data ◽  
Hot Water ◽  
Eastern Ghats ◽  
Red Algal ◽  
Algal Groups ◽  
Voucher Specimens ◽  
Nicobar Islands ◽  
Water Springs ◽  
First Time

An annotated bibliographic catalogue of Indian red algae (Rhodophyta) occurring in freshwater and estuarine habitats (moist terrestrial soils, ponds, streams, rivers, lakes, large inland brackish water lagoons and coastal estuaries), based on more than a century (1846 to 2017) of publications is presented in a single coherent work for the first time. There have been 81 taxonomic entities (species, varieties and doubtful records), distributed among 21 genera recorded for the vast Indian sub-continent. Species distribution among the 21 genera are as follows: Audouinella—12; Balliopsis—1; Batrachospermum—11; Bostrychia—7; Caloglossa—8; Catenella—3; Chroodactylon (including Asterocytis)—2; Chroothece—1; Compsopogon—8, Compsopogonopsis—1; Hildenbrandia—1; Kumanoa—7; Kyliniella—1; Lemanea—6; Nothocladus—1; Polysiphonia—1; Porphyridium—1; Sheathia—1; Sirodotia—4; Thorea—2; and Tuomeya—2. Of the seven currently recognized classes of Rhodophyta, no members of Bangiophyceae, Cyaniodiophyceae, or Rhodellophyceae are recorded from India. For each taxon, the following information is provided: (i) valid and currently accepted binomial (ii) synonyms as applicable to Indian records (iii) references with distribution in India and (iv) brief notes. Descriptions of new species based on Indian collections (holotypes) are indicated and some new combinations were made, when necessary. Several generic records (e.g., Balliopsis, Hildenbrandia, Kyliniella, Nothocladus and Tuomeya) and some species records (e.g. Batrachospermum longiarticulatum, Lemanea australis, L. catenata, L. fluviatilis, L. mamillosa, L. torulosa and Thorea hispida) warrant detailed confirmatory data based on reinvestigation of fresh collections for morphology, reproduction and particularly molecular data to confirm the presence in the country. Future collections, especially in the Indian Biodiversity Hotspots (Indo-Burma, Western and Eastern Ghats and Andaman & Nicobar Islands), may uncover the occurrence of genera such as Bangia, Cyanidium and Nemalionopsis known to be present in neighbouring countries of Pakistan, Nepal and Thailand. Geothermal (acidic) hot water springs in India may reveal the presence of extremophilic unicellular red algal genera like Cyanidium, Cyanidioschyzon and Galdieria of the Cyanidiophyceae. Two maps showing the political and biogeographic zones of India are included. The need to preserve holotype and duplicate/voucher specimens with GPS data of future collections of red algal groups in a centralized national facility is also highlighted.

scholarly journals First records and a new genus of comb-tailed spiders (Araneae: Hahniidae) from Thailand with comments on the six-eyed species of this family

2020 ◽  
Vol 724 ◽  
Author(s):  
Francisco Andrés Rivera-Quiroz ◽  
Booppa Petcharad ◽  
Jeremy A. Miller
Keyword(s):  
New Species ◽  
Dna Sequences ◽  
New Genus ◽  
New Combination ◽  
Phylogenetic Position ◽  
The Novel ◽  
Novel Genus ◽  
The Family ◽  
Two New Species ◽  
First Time

The family Hahniidae is reported from Thailand for the first time. The genus Hexamatia gen. nov. and two new species, Hexamatia seekhaow gen. et sp. nov. and Hahnia ngai sp. nov., are described and illustrated. DNA sequences are provided for all the species reported here. The phylogenetic position of the novel genus Hexamatia gen. nov. and its relation to Hahnia are discussed. Based on these results, a new combination is proposed for Hexamatia senaria (Zhang, Li & Zheng, 2011) gen. et comb. nov. = Hahnia senaria. Known distribution of the species Hahnia saccata Zhang, Li & Zheng, 2011, originally described from China, is expanded. A brief review and notes on the taxonomy of the six-eyed hahniids are included.

New data on the family Blaberidae (Dictyoptera) from Southeast Asia: new species, morphological diversity and phylogeny on the base of ribosomal DNA sequences

2015 ◽  
Vol 24 (1) ◽  
pp. 14-30 ◽  
Author(s):  
V.A. Mavropulo ◽  
L.N. Anisyutkin ◽  
M.V. Zagoskin ◽  
A.S. Zagoskina ◽  
S.V. Lukyantsev ◽  
...  
Keyword(s):  
New Species ◽  
Ribosomal Dna ◽  
Dna Sequences ◽  
Male Genitalia ◽  
Morphological Diversity ◽  
The Family ◽  
Two New Species ◽  
First Time ◽  
One New Species ◽  
28S Ribosomal Dna

New cockroaches of the family Blaberidae are described from Southern Sumatra: two new species of the genus Cyrtonotula Uvarov, 1939, C. secunda sp. nov. and C. tertia sp. nov. (Epilamprinae); and one new species of the genus Paranauphoeta J.W.H. Rehn, 1951, P. pullata sp. nov. (Paranauphoetinae). Detailed morphological descriptions of the new species are given. Structures of the male genitalia of the genus Cyrtonotula are described for the first time. Hypothesis on the relationships of these new taxa as well as Morphna maculata Brunner von Wattenwyl, 1865, Rhabdoblatta sp. and Pseudophoraspis sp. based on 28S ribosomal DNA sequences is discussed.

Buried Narratives: Exhuming the Mother's Story in Oliver Twist

2018 ◽  
Vol 8 (3) ◽  
pp. 247-266
Author(s):  
Michelle L. Wilson
Keyword(s):  
Social Change ◽  
Maternal Inheritance ◽  
The Novel ◽  
Poor Law ◽  
The Family ◽  
The Law ◽  
First Time ◽  
Critical Consideration

Initially, Oliver Twist (1839) might seem representative of the archetypal male social plot, following an orphan and finding him a place by discovering the father and settling the boy within his inheritance. But Agnes Fleming haunts this narrative, undoing its neat, linear transmission. This reconsideration of maternal inheritance and plot in the novel occurs against the backdrop of legal and social change. I extend the critical consideration of the novel's relationship to the New Poor Law by thinking about its reflection on the bastardy clauses. And here, of course, is where the mother enters. Under the bastardy clauses, the responsibility for economic maintenance of bastard children was, for the first time, legally assigned to the mother, relieving the father of any and all obligation. Oliver Twist manages to critique the bastardy clauses for their release of the father, while simultaneously embracing the placement of the mother at the head of the family line. Both Oliver and the novel thus suggest that it is the mother's story that matters, her name through which we find our own. And by containing both plots – that of the father and the mother – Oliver Twist reveals the violence implicit in traditional modes of inheritance in the novel and under the law.

Faktor-Faktor Determinan yang melatar belakangi Kehamilan Remaja di Desa Pandansari Kecamatan Poncokusumo Kabupaten Malang

2020 ◽  
Vol 7 (2) ◽  
pp. 247-255
Author(s):  
Maria Magdalena Setyaningsih ◽  
Emy Sutiyarsih
Keyword(s):  
Sex Education ◽  
Teen Pregnancy ◽  
Teenage Pregnancy ◽  
Well Being ◽  
Case Control ◽  
Control Group ◽  
Case Group ◽  
The Family ◽  
History Of ◽  
First Time

Kehamilan remaja adalah kehamilan yang terjadi pada remaja berusia kurang dari 20 tahunan. Kehamilan remaja memberikan banyak kerugian bagi kesehatan, mental dan psikologis, kesejahteraan ekonomi dan peluang karier, kemiskinan dan prospek kehidupan masa depan remaja. Tujuan penelitian mengidentifikasi faktor determinan yang melatarbelakangi terjadinya kehamilan remaja. Jenis penelitian adalah penelitian analitik kategorik jenis survei kuantitatif dengan desain case control. Populasi semua perempuan yang bertempat tinggal di wilayah dusun Wonosari, Sukosari, dan Krajan Pandansari dan pernah/sedang hamil pertama kali pada usia kurang dari 20 tahun. Teknik pengambilan sampel cluster random sampling besar sampel 73. Berdasarkan hasil model akhir analisis multivariat, diketahui bahwa variabel pendidikan, riwayat kehamilan remaja pada keluarga dan usia menikah merupakan variabel yang berhubungan dengan kejadian kehamilan remaja setelah dikontrol oleh variabel akses informasi, responden berpendidikan rendah memiliki peluang 20,8 kali lebih tinggi, responden yang memiliki riwayat kehamilan remaja pada keluarga memiliki peluang 14,9 kali lebih tinggi, responden yang menikah pada usia <20 tahun memiliki peluang 12,1 kali lebih tinggi, responden dengan pemahaman yang kurang baik terkait penggunaan kondom memiliki peluang 5,9 kali lebih tinggi untuk terjadi kehamilan remaja. Oleh karena itu perlu dibangun karakter buiding, sosial karakter suport untuk para ibu remaja dan keluarga sehingga terbangun interaksi yang baik dalam keluarga yang dilandasi dengan pendidikan dan pemahaman yang baik tentang Pendidikan seksualitas. Teen pregnancy is a pregnancy that occurs in adolescents aged less than 20 years old. Teen pregnancy provides many disadvantages for health, mental, psychological, economic well-being, career opportunities, poverty, and the future life. The aim of the study was to identify the determinants underlying teen pregnancy incidence. This study was a quantitative study with categorical analytic method. The study design used a case control with two comparison groups. The groups were control group and case group. The population in this study was all women who lived in the Wonosari, Sukosari, and Krajan Pandansari district and had or were pregnant for the first time at the age of less than 20 years old. Seventy three respondents were recruited using cluster sampling technique. The case group consists of women who were or had pregnant for the first time at the age of less than 20 years old and their children are currently aged ≤ 1 years old. The control group consists of women who were pregnant for the first time at the age of > 20 years old. The data was collected using a questionnaire. The findings showed that education, history of teen pregnancy in family and the age of marriage were related to the incidence of teen pregnancy after being controlled by information access. Low-educated respondents had 20.8 times higher chance of experiencing teen pregnancy; respondents with a history of teen pregnancy in the family had 4.9 times higher chance of experiencing teen pregnancy; respondents who were married at the age of < 20 years old had 12.1 times higher chance of experiencing teen pregnancy; respondents with poor understanding of condom use had 5.9 times higher chance of teenage pregnancy. In conclusion, the findings suggest to build good interactions in the family based on education and a good understanding of sex education.

New records of some rare species in the family Hyaloscyphaceae (Ascomycota, Helotiales) from Central Russia

2013 ◽  
Vol 47 ◽  
pp. 135-142
Author(s):  
E. S. Popov
Keyword(s):  
Rare Species ◽  
New Records ◽  
Moscow Region ◽  
North Caucasus ◽  
Central Russia ◽  
The Family ◽  
First Time

Three rare species of discomycetes in the family Hyaloscyphaceae are reported from Central Russia (Oryol and Bryansk Regions). Proliferodiscus tricolor is recorded for the first time in Russia. Comments are made on Aeruginoscyphus sericeus and Eriopezia caesia previously reported only from Moscow Region and North Caucasus respectively.

Sign in / Sign up

Export Citation Format

Share Document