scholarly journals Recombination of Feline calicivirus within an endemically infected cat colony

2006 ◽  
Vol 87 (4) ◽  
pp. 921-926 ◽  
Author(s):  
K. P. Coyne ◽  
F. C. Reed ◽  
C. J. Porter ◽  
S. Dawson ◽  
R. M. Gaskell ◽  
...  

To understand the evolution of the family Caliciviridae, the persistence of Feline calicivirus (FCV) was studied within an endemically infected cat colony. Polymerase and capsid sequences were analysed for 34 FCV isolates obtained over a 4 year period. Initially, the colony was infected with one strain of virus, but a second distinct strain was later identified. Subsequently, the emergence of a recombinant virus was observed, containing elements of both of the strains circulating within the colony. The recombination event mapped close to the ORF1/ORF2 junction. This is consistent with recombination in other caliciviruses, suggesting a common mechanism within this family. This is the first report of recombination within the genus Vesivirus in the family Caliciviridae and the first time that a recombination event has been observed where the parental strains have also been identified.

2015 ◽  
Vol 20 (3) ◽  
pp. 217-220 ◽  
Author(s):  
Jorge Alexander QUIROZ-RODRÍGUEZ ◽  
Edwin BEDOYA ROQUEME ◽  
Robin BEDOYA COCHETT

<p>Durante un estudio de la fauna de artrópodos asociada a montículos de detritos de hormigas de la especie <em>Atta colombica</em> Guérin-Méneville, 1844<em> </em>(Hymenoptera: Formicidae) en la hacienda Santa Isabel, corregimiento de Patio Bonito en el departamento de Córdoba, se encontraron representantes de la familia Cheiridiidae. Por tanto, estos pseudoescorpiones se convierten en el primer reporte de la familia para Colombia y por primera vez se registra su presencia en detritus de hormigas. Así mismo, este reporte, amplía su distribución conocida para Suramérica.</p><p><strong>First Report of Family Cheiridiidae (Arachnida: Pseudoscorpionida) in Colombia</strong></p><p>During a study of the arthropod fauna associated with mounds of detritus produced by <em>Atta colombica</em> (Hymenoptera: Formicidae) in the Santa Isabel estate, locality of Patio Bonito, Department of Córdoba, were found representatives of the family Cheiridiidae. Therefore, these pseudoscorpions becomes in the first report of the family to Colombia and for the first time is recorded its presence in ant detritus. Also, this report extends its known distribution range in South America.   </p>


Zootaxa ◽  
2020 ◽  
Vol 4755 (3) ◽  
pp. 593-597
Author(s):  
YEJIE LIN ◽  
SHUQIANG LI ◽  
HAIFENG CHEN

The spider genus Desis Walckenaer, 1837 is the type genus of the spider family Desidae Pocock, 1895. Desis spiders hide in silk sacs between rocks or shells during high tide and forage during low tide (Baehr et al. 2017). Four Desis species have been recorded from Asia: Desis gardineri Pocock, 1904 (India), Desis inermis Gravely, 1927 (India), Desis japonica Yaginuma, 1956 (Japan) and Desis martensi L. Koch, 1872 (Malaysia) (World Spider Catalog 2020). Until now, only one species of the family Desidae, Badumna tangae Zhu, Zhang & Yang, 2006, has been reported from China (Zhu et al. 2006). Here, we describe a new species of Desis and report the genus from China for the first time. 


2015 ◽  
Vol 52 (4) ◽  
pp. 384-389 ◽  
Author(s):  
J. C. A. Briones ◽  
R. D. S. Papa ◽  
G. A. Cauyan ◽  
M. Urabe

Summary Three acanthocephalan parasites, namely Neoechinorhynchus (Neoechinorhynchus) quinghaiensis, Rhadinorhynchus ganapatti, and Bolbosoma sp. are reported for the first time from Philippine fishes. N. (N.) quinghaiensis (Neoechinorhynchidae) may have been introduced into the country through the importation of carp species from China, where this parasite was first described and is presumed to be naturally occurring. The adult worms of R. ganapatti and the isolated cystacanth of Bolbosoma sp. represent the first record of parasites from both the family Rhadinorhynchidae and Polymorphidae in Philippine waters, respectively. These three new records encompass a third of all listed acanthocephalan parasites that have been reported in Philippine fish species to date, highlighting the need for more biodiversity-focused parasitology research, in light of potentially numerous more undocumented parasite species.


2021 ◽  
Vol 91 (1) ◽  
pp. 59-60
Author(s):  
Mario Lo Valvo ◽  
Domenico Pieri

The presence of the Spotless Starling in Sicily was reported for the first time at the beginning of the XIX century, although the first nests for the province of Trapani are reported almost at the end of the XX century. As a breeder, the Spotless Starling remained absent from all the circumsicilian islands until the first report for the island of Pantelleria, in 2012. In 2020, the nest of Spotless Starling was observed on the island of Favignana, within a hole on an antenna. The couple fed the chicks with Ligia italica crustacean isopod of the family Ligiidae. The nesting on the island of Favignana confirms the continuous expansion of the species in Sicily.


2017 ◽  
Vol 26 (2) ◽  
pp. 329-336 ◽  
Author(s):  
X. Liu ◽  
E.P. Nartshuk ◽  
D. Yang

A wingless species Elachiptera viator Nartshuk, 1971 in the family Chloropidae is recorded from China (Beijing) for the first time. A redescription of the species is given with the figures of its characteristics and the genitalia of both sexes. A checklist of seven species of the genus Elachiptera known from China with their distribution and a key to the Chinese and Oriental species of the genus are given. The following new combinations are proposed: Lasiochaeta bengalensis (Cherian, 1975), comb. nov., L. longicosta (Cherian, 1975), comb. nov., L. luteopilosa (Cherian, 1975), comb. nov., and Disciphus indica (Cherian, 1975), comb. nov.


Zootaxa ◽  
2017 ◽  
Vol 4299 (4) ◽  
pp. 451
Author(s):  
BORIS I. SIRENKO ◽  
HIROSHI SAITO

Twelve species of the polyplacophoran genera Notoplax, Leptoplax, Acanthochitona and Cryptoplax (Chitonida: Acanthochitonina: Cryptoplacoidea) were found in Vietnamese waters for the first time. Five of them, namely Notoplax conica, Leptoplax doederleini, Leptoplax richardi n. comb., Acanthochitona achates and A. biformis, are new to Vietnamese fauna. The remaining seven species are new to science, namely: Notoplax odysseyi n. sp., Leptoplax nhatrangi n. sp., L. tongkingi n. sp., Acanthochitona condaoi n. sp., A. lanae n. sp., A. nigra n. sp. and A.ostreaphila n. sp. Leptoplax richardi n. comb. was transferred from the original genus Notoplax based on the redefinition of the genus given herein. We confirmed the occurrences of 21 species of the superfamily Cryptoplacoidea in the Vietnamese fauna, which makes them the richest group of chitons in Vietnamese waters. A peculiar feature, a comb-like blade in the major uncinal teeth of the radula is found in two new species, L. tongkingi n. sp. and A. ostreaphila n. sp. A similar feature is known only in two other distinct groups: the genus Ferreiraella of the family Ferreiraellidae of the order Lepidopleurida and the genera Tonicella and Boreochiton of the family Tonicellidae of the order Chitonida. This is the first report of this feature other than those two groups. 


2021 ◽  
Vol 15 (2) ◽  
pp. 171-178
Author(s):  
Vladimir E. Gokhman

Chromosomes of two species of the tribe Aylacini (Cynipidae), Isocolus jaceae (Schenck, 1863) and I. scabiosae (Giraud, 1859) (both have 2n = 18) were studied for the first time. In addition, 2n = 20 is confirmed in a member of the same tribe, Aulacidea hieracii (Bouché, 1834). All chromosomes of these gall wasps are biarmed; however, they gradually decrease in size in the case of A. hieracii, whereas a pair of large metacentrics is characteristic of karyotypes of both Isocolus Förster, 1869 species. Chromosomes of the two latter gall wasps are either metacentric or submetacentric, but elements with lower centromeric indices prevail in the karyotype of A. hieracii. Chromomycin A3 (CMA3)/DAPI staining revealed single CMA3-positive bands on a particular pair of chromosomes of all species, and these bands apparently refer to the nucleolus organizing regions (NORs). However, localization of CMA3-positive bands differs substantially between the studied members of Isocolus and Aulacidea Ashmead, 1897. Together with normal haploid and diploid mitotic divisions, several metaphase plates with 2n = 17 containing a peculiar dicentric chromosome were found in a single male specimen of I. scabiosae; this appears to be the first report of an obvious dicentric in the order Hymenoptera in general. Certain aspects of the chromosome diversity and karyotype evolution within the family Cynipidae and the tribe Aylacini in particular are briefly discussed.


2016 ◽  
Vol 7 ◽  
pp. 298-304 ◽  
Author(s):  
Zhizhong Gao ◽  
Feng Zhang

A new pseudoscorpion species, Cardiolpium curcici sp. nov., belonging to the family Olpiidae, is described, and the genus Cardiolpium Mahnert, 1986 is reported from China for the first time. The finding of the new species fills up a gap in the distribution of the genus. Detailed diagnosis, description and illustrations of the new pseudoscorpion species are presented.


1966 ◽  
Vol 15 (1) ◽  
pp. 55-63 ◽  
Author(s):  
Aylthon B. Joly ◽  
Yumiko Ugadim

This paper gives informations on the type of carpogonial branches found in a representative of the family Rhizophyllidaceae, as well as details of the auxiliary cell branches in the genus Ochtodes. Details of the development of the spermatangia in this genus are also presented. The tetrasporic plants, not yet known in this genus are described for the first time. The tetrasporangia are produced in nemathecia and have no sterile filaments in between, and in this respect are similar to the ones found in Rhizophyllis and Desmia the only other two genera of the family. Details of certain peculiarities of the vegetative thallus are also given. This is the first report of Ochtodes secundiramea in the American Western South Atlantic.


Development ◽  
1997 ◽  
Vol 124 (7) ◽  
pp. 1275-1280
Author(s):  
H. Tsukaya

One-leaf plants, belonging to the family Gesneriaceae, were described for the first time more than 150 years ago. One such unusual plant, Monophyllaea, has only one leaf at maturity. Only one of the two cotyledons grows continuously, without the formation of true leaves, and this feature, known as anisocotyledonous development, has been repeatedly mentioned in textbooks of plant morphology. However, the mechanism for the determination of the one-leaf phenotype remains to be ascertained. In this study, meristematic regions were identified, by monitoring DNA synthesis, at the base of both cotyledons just after germination, while no such regions were found in the shoot apex. Surgical experiments with seedlings and analysis of the anisocotyledonous development revealed that the fate of the cotyledons is determined during their growth. Anisocotyledonous development seems to be the result of competition between the two cotyledons. The mechanism that governs the development of the shoot in the genus Monophyllaea is discussed in relation to apical dominance, which is the common mechanism that regulates shoot development in many plants.


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