oalib
Search Results: 1 - 10 of 48 matches for " "
All listed articles are free for downloading (OA Articles)
Page 1 /48
Display every page Item
A new species of Lithobius (Monotarsobius) Verhoeff, 1905 (Lithobiomorpha, Lithobiidae) from China  [cached]
Huiqin Ma,Sujian Pei,Baojun Shi,Dayong Wu
ZooKeys , 2011, DOI: 10.3897/zookeys.82.823
Abstract: The present paper deals with a new species of the genus Lithobius Leach, 1814, L. (Monotarsobius) songi sp. n. (Lithobiomorpha: Lithobiidae) recently discovered in Hebei Province, China. Morphologically it resembles L. (M.) holstii (Pocock, 1895) from China and Japan but could be well distinguished from latter bya T m sváry’s organ slightly smaller than the adjoining ocelli, different leg plectrotaxy and tridentate claw of female gonopods. A key to the Chinese Lithobius (Monotarsobius) species is presented.
Lithobius (Monotarsobius) monoforaminis sp. n., a new species of lithobiid centipede from central China (Chilopoda, Lithobiomorpha, Lithobiidae)  [cached]
Huiqin Ma,Sujian Pei,Dayong Wu,Hongjunl Lin
ZooKeys , 2012, DOI: 10.3897/zookeys.193.2802
Abstract: The present paper describes a new species Lithobius (Monotarsobius) monoforaminis sp. n. (Lithobiomorpha: Lithobiidae) recently discovered from Shaanxi and Shanxi provinces, Central China. Morphologically it resembles L. (M.) minimus Farzalieva, 2006 from Eastern Kazakhstan, but could be well distinguished from the latteronly one pore on the coxae of legs 12–15 and different plectrotaxy, and by lacking a wart on the male tibia 15. A key to the Chinese Lithobius (Monotarsobius) species is presented.
über Calciphilie bei Lithobius nodulipes LATZEL, 1880 (Chilopoda, Lithobiomorpha) sowie die Beurteilung von L. nodulipes scarabanciae LOKSA, 1947 in Ungarn  [PDF]
Dányi, L
Opuscula Zoologica Instituti Zoosystematici et Oecologici Universitatis Budapestinensis , 2006,
Abstract: Previously, there were just two known occurrences of Lithobius nodulipes LATZEL, 1880 in Hungary, but in the last couple of years we could show its presence in several new areas of the country. The recent findings disprove the presumed calciphily of the species (MATIC, 1966) and raise taxonomical questions in connection with the subspecies Lithobius nodulipes scarabanciae LOKSA, 1947, which was first found and described in an area of Hungary. We give a list of the newly discovered occurrences and describe the characteristics which are needed for the determination of the species. A drawing of the hind legs of a male and a map showing the occurrences are provided as well
Ensayos de Tolerancia al Aluminio de Bromus stamineus y Bromus lithobius Recolectados en el Sur de Chile Aluminum Tolerance Assays of Bromus stamineus and Bromus lithobius from Southern Chile  [cached]
Marcelo Toneatti,Nelson R Rivera
Información Tecnológica , 2006,
Abstract: Se han estudiado los efectos de los diferentes tratamientos sobre el desarrollo de distintos ecotipos de plantas del género Bromus para determinar la tolerancia al aluminio en diferentes condiciones de suelo. En una primera etapa se seleccionaron los ecotipos PRO 95-18, PRO 94-25, PRO 94-24, PRO 94-49 y PRO 94-4 por orden decreciente en cuanto a la tolerancia al aluminio, entre 20 pertenecientes a las especies Bromus lithobius y Bromus stamineus. Se evaluó el crecimiento radicular durante cuatro días en soluciones de 0, 20, 40, 80 y 160 mM de aluminio. En la segunda etapa se sometió al material seleccionado a cultivo en maceta con un suelo de 42,6% de saturación de aluminio, modificado con tres dosis de carbonato cálcico. Se evaluó la producción de materia seca radicular así como también se determinaron concentraciones de aluminio radicular y foliar (ppm). Se concluye que el comportamiento en suelo no es similar al obtenido en solución debido a que operan mecanismos diferentes de tolerancia, y se destaca el comportamiento del ecotipo PRO 94-49, por tolerancia al aluminio en condiciones de suelo. A study was made on the effects of several soil treatments on different ecotypes of plants of the genus Bromus to determine the tolerance to aluminum under different soil condition. For the first step, out of 20 ecotypes of Bromus lithobius and Bromus stamineus, the ecotypes PRO 95-18, PRO 94-25, PRO 94-24, PRO 94-49 and PRO 94-4 were selected, as they represented a declining order of tolerance to aluminum. Root growth of all the ecotypes was evaluated over four day exposures in aluminum solutions at 0, 20, 40, 80 and 160 mM. A second stage of testing was carried out in soil containing 42.6% saturation of aluminum, modified by three doses of calcium carbonate. Evaluation was made of dry root material produced, as well as concentrations of aluminum in the roots and leaves. It was concluded that behavior of the plants was different between the solution tests and the soil tests due to different mechanisms of tolerance, of which ecotype PRO 94-49 was outstanding in its tolerance to aluminum under soil test conditions.
基于线粒体 COI基因序列的壮真蝎与普洱真蝎的分子鉴定
Molecular Identification of Euscorpiops validus and E. puerensis Based on Mitochondrial COI Gene Sequences
 [PDF]

李蓉#,郑雨田#,李春青,陈艳艳,杨振升,陈善元,肖蘅
- , 2017, DOI: 10.11984/j.issn.1000-7083.20160305
Abstract: 中文摘要:对蝎类物种的传统分类主要依靠形态和行为特征,但由于该类群种间形态特征极为相似,物种的划分和鉴定困难。为弥补传统分类方法的不足,本研究以线粒体细胞色素氧化酶亚基Ⅰ( COI)基因作为分子标记,对形态相似的壮真蝎 Euscorpiops validus和普洱真蝎 E.puerensis进行分子水平的物种鉴定。采用PCR扩增测序获得壮真蝎与普洱真蝎共24个样本的 COI基因部分片段序列(660 bp),进行了遗传距离、系统发育及单倍型网络图分析。结果显示:壮真蝎15个样本中共检测到4个单倍型,单倍型之间的相似度为99.3%~99.8%;普洱真蝎9个样本中共检测到4个单倍型,单倍型之间的相似度为99.6%~99.8%;2种蝎的种间序列相似度为90.1%~90.6%,单倍型间的稳定差异核苷酸位点数为61个。壮真蝎与普洱真蝎种内平均遗传距离分别为0.004 0、0.002 3,种间平均遗传距离为0.103 9,且种间遗传距离为种内的34.6倍。此外,分子系统发育树显示壮真蝎与普洱真蝎的单倍型序列各自聚为2个单系枝,且具有很高的分枝自举值(100%)。单倍型网络图结果也显示壮真蝎与普洱真蝎8个单倍型明显分为2大类群,且壮真蝎的单倍型HAP2与普洱真蝎的单倍型HAP7之间的突变步数高达62步。上述结果不仅进一步确认壮真蝎与普洱真蝎为2个不同的物种,且表明线粒体 COI基因可用于开展真蝎属 Euscorpiops物种的分子鉴定。
英文摘要:The traditional classification and taxonomy of scorpiones are mainly based on morphological and behavioral characteristics. However, due to the similar morphological characteristics among species, it is difficult to classify and identify distinct species among scorpions. To compensate for the insufficiency of traditional taxonomic methodology, this study used mitochondrial cytochrome oxidase subunit Ⅰ ( COI) gene as molecular marker to conduct molecular identification of 2 morphologically similar scorpion species Euscorpiops validus and E. puerensis. The partial COI gene sequences (660 bp) from 24 samples of E. validus and E. puerensis were amplified by PCR followed by gene sequencing. The genetic distances, phylogenetic and haplotype network analyses were then carried out. The results showed that:4 haplotypes with similarity of 99.3%-99.8% were detected in 15 individuals of E. validus, and 4 haplotypes with similarity of 99.6%-99.8% were found in 9 individuals of E. puerensis; the interspecific similarity was 90.1%-90.6% and the number of stable differentiated nucleotide sites between the haplotypes of 2 species was 61. The intraspecific average genetic distances among E. validus haplotypes and among E. puerensis haplotypes were 0.004 0 and 0.002 3, respectively, while the interspecific average genetic distance between E. validus and E. puerensis was 0.103 9, being 34.6 times higher than that of intraspecific values. In addition, molecular phylogenetic tree clearly showed that the haplotype sequences of E. validus and E. puerensis clustered as 2 reciprocally monophyletic clades with high bootstrap values (100%). The haplotype network also showed that 8 haplotypes of E. validus and E. puerensis can be clearly divided into 2 clades, and the mutation steps between HAP2 haplotype of E. validus and HAP7 haplotype of E. puerensis reached 62. These results further confirmed that E. validus and E. puerensis were 2 distinct species, and
Ensayos de Tolerancia al Aluminio de Bromus stamineus y Bromus lithobius Recolectados en el Sur de Chile
Toneatti,Marcelo; Rivera,Nelson R;
Información tecnológica , 2006, DOI: 10.4067/S0718-07642006000100003
Abstract: a study was made on the effects of several soil treatments on different ecotypes of plants of the genus bromus to determine the tolerance to aluminum under different soil condition. for the first step, out of 20 ecotypes of bromus lithobius and bromus stamineus, the ecotypes pro 95-18, pro 94-25, pro 94-24, pro 94-49 and pro 94-4 were selected, as they represented a declining order of tolerance to aluminum. root growth of all the ecotypes was evaluated over four day exposures in aluminum solutions at 0, 20, 40, 80 and 160 mm. a second stage of testing was carried out in soil containing 42.6% saturation of aluminum, modified by three doses of calcium carbonate. evaluation was made of dry root material produced, as well as concentrations of aluminum in the roots and leaves. it was concluded that behavior of the plants was different between the solution tests and the soil tests due to different mechanisms of tolerance, of which ecotype pro 94-49 was outstanding in its tolerance to aluminum under soil test conditions.
Note on Bittacus Validus in Baltic Amber  [cached]
F. M. Carpenter
Psyche , 1975, DOI: 10.1155/1975/86806
Abstract:
On the appendage regeneration of Eupolybothrus transsylvanicus (Latzel) (Chilopoda: Lithobiidae)  [PDF]
Miti? B.M.,Tomi? V.T.,Makarov S.E.,Ili? B.S.
Archives of Biological Sciences , 2010, DOI: 10.2298/abs1002281m
Abstract: We have analyzed and discussed the indirect evidence of regeneration of the forcipular telopodites and the walking legs (reduced in size or abnormal characteristics such as atypical morphology and a reduced number of articles) in wild populations of the lithobiomorph centipede Eupolybothrus transsylvanicus (Latzel). In our opinion, these morphological defects can be interpreted as a result of incomplete regeneration. In some cases, the full segmentation of the regenerating appendages will be completed later in ontogeny through an anamorphic schedule of post-embryonic segment addition.
The centipede genus Eupolybothrus Verhoeff, 1907 (Lithobiidae, Chilopoda) in Serbia and Montenegro
Makarov Slobodan E.,Miti? Bojan M.,Tomi? Vladimir T.
Archives of Biological Sciences , 2003, DOI: 10.2298/abs0302015m
Abstract:
The centipede genus Eupolybothrus Verhoeff, 1907 (Chilopoda: Lithobiomorpha: Lithobiidae) in North Africa, a cybertaxonomic revision, with a key to all species in the genus and the first use of DNA barcoding for the group
Pavel Stoev,Nesrine Akkari,Marzio Zapparoli,David Porco
ZooKeys , 2010, DOI: 10.3897/zookeys.50.504
Abstract: The centipede genus Eupolybothrus Verhoeff, 1907 in North Africa is revised. A new cavernicolous species, E. kahfi Stoev & Akkari, sp. n., is described from a cave in Jebel Zaghouan, northeast Tunisia. Morphologically, it is most closely related to E. nudicornis (Gervais, 1837) from North Africa and Southwest Europe but can be readily distinguished by the long antennae and leg-pair 15, a conical dorso-median protuberance emerging from the posterior part of prefemur 15, and the shape of the male first genital sternite. Molecular sequence data from the cytochrome c oxidase I gene (mtDNA–5’ COI-barcoding fragment) exhibit 19.19% divergence between E. kahfi and E. nudicornis, an interspecific value comparable to those observed among four other species of Eupolybothrus which, combined with a low intraspecific divergence (0.3-1.14%), supports the morphological diagnosis of E. kahfi as a separate species. This is the first troglomorphic myriapod to be found in Tunisia, and the second troglomorph lithobiomorph centipede known from North Africa. E. nudicornis is re-described based on abundant material from Tunisia and its post-embryonic development, distribution and habitat preferences recorded. E. cloudsley-thompsoni Turk, 1955, a nominal species based on Tunisian type material, is placed in synonymy with E. nudicornis. To comply with the latest technological developments in publishing of biological information, the paper implements new approaches in cybertaxonomy, including database and interactive key publishing, georeferencing of all localities via Google Earth, and ZooBank, GenBank and MorphBank registration of datasets. An interactive key to all valid species of Eupolybothrus is made with DELTA software.
Page 1 /48
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.