Standard G-, Q-, and R-banded ideograms of the domestic sheep (Ovis aries): homology with cattle (Bos taurus). Report of the committee for the standardization of the sheep karyotype

1999 ◽  
Vol 87 (1-2) ◽  
pp. 134-142 ◽  
Author(s):  
H.A. Ansari ◽  
A.A. Bosma ◽  
T.E. Broad ◽  
T.D. Bunch ◽  
S.E. Long ◽  
...  
Keyword(s):  
Bos Taurus ◽  
Ovis Aries ◽  
Domestic Sheep

CONSERVATION OF NUCLEOLUS ORGANIZER REGIONS DURING EVOLUTION IN SHEEP, GOAT, CATTLE AND AOUDAD

1979 ◽  
Vol 21 (1) ◽  
pp. 1-8 ◽  
Author(s):  
L. M. Henderson ◽  
A. N. Bruère
Keyword(s):  
Ribosomal Dna ◽  
Bos Taurus ◽  
Centric Fusion ◽  
Nucleolus Organizer ◽  
Ovis Aries ◽  
Capra Hircus ◽  
Domestic Sheep ◽  
Banding Patterns ◽  
Nucleolus Organizer Regions ◽  
Ammotragus Lervia

There are ten nucleolus organizer regions (NORs) in domestic sheep (Ovis aries L.), cattle (Bos taurus L.), goat (Capra hircus L.) and aoudad (Ammotragus lervia Blyth) and these are located terminally on chromosomes with homologous G-banding patterns. The similarity in number of nucleolus organizer regions in these species may indicate that their ribosomal DNA regions are infrequently involved in exchange events which could lead to different numbers of active nucleolus organizer regions. Other possible explanations of the conservation of number of nucleolus organizer regions in these species are discussed. The homology of NOR location in these species supports the idea that the Bovidae karyotype tends to be fairly stable apart from changes due to centric fusion events.

scholarly journals IMGT® Biocuration and Comparative Analysis of Bos taurus and Ovis aries TRA/TRD Loci

Genes ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 30
Author(s):  
Perrine Pégorier ◽  
Morgane Bertignac ◽  
Viviane Nguefack Ngoune ◽  
Géraldine Folch ◽  
Joumana Jabado-Michaloud ◽  
...  
Keyword(s):  
Immune Response ◽  
Comparative Analysis ◽  
T Cell ◽  
T Cell Receptors ◽  
Bos Taurus ◽  
Homo Sapiens ◽  
Adaptive Immune Response ◽  
Ovis Aries ◽  
Cell Receptors ◽  
Adaptive Immune

The adaptive immune response provides the vertebrate immune system with the ability to recognize and remember specific pathogens to generate immunity, and mount stronger attacks each time the pathogen is encountered. T cell receptors are the antigen receptors of the adaptive immune response expressed by T cells, which specifically recognize processed antigens, presented as peptides by the highly polymorphic major histocompatibility (MH) proteins. T cell receptors (TR) are divided into two groups, αβ and γδ, which express distinct TR containing either α and β, or γ and δ chains, respectively. The TRα locus (TRA) and TRδ locus (TRD) of bovine (Bos taurus) and the sheep (Ovis aries) have recently been described and annotated by IMGT® biocurators. The aim of the present study is to present the results of the biocuration and to compare the genes of the TRA/TRD loci among these ruminant species based on the Homo sapiens repertoire. The comparative analysis shows similarities but also differences, including the fact that these two species have a TRA/TRD locus about three times larger than that of humans and therefore have many more genes which may demonstrate duplications and/or deletions during evolution.

scholarly journals Metagenomic analysis of the cow, sheep, reindeer and red deer rumen

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Laura Glendinning ◽  
Buğra Genç ◽  
R. John Wallace ◽  
Mick Watson
Keyword(s):  
Cervus Elaphus ◽  
Rangifer Tarandus ◽  
Red Deer ◽  
Bos Taurus ◽  
Novel Species ◽  
Ovis Aries ◽  
Metagenomic Analysis ◽  
Reference Dataset ◽  
Microbial Genomes ◽  
Ruminant Species

AbstractThe rumen microbiota comprises a community of microorganisms which specialise in the degradation of complex carbohydrates from plant-based feed. These microbes play a highly important role in ruminant nutrition and could also act as sources of industrially useful enzymes. In this study, we performed a metagenomic analysis of samples taken from the ruminal contents of cow (Bos Taurus), sheep (Ovis aries), reindeer (Rangifer tarandus) and red deer (Cervus elaphus). We constructed 391 metagenome-assembled genomes originating from 16 microbial phyla. We compared our genomes to other publically available microbial genomes and found that they contained 279 novel species. We also found significant differences between the microbiota of different ruminant species in terms of the abundance of microbial taxonomies, carbohydrate-active enzyme genes and KEGG orthologs. We present a dataset of rumen-derived genomes which in combination with other publicly-available rumen genomes can be used as a reference dataset in future metagenomic studies.

Bombardioidea stercoris. [Descriptions of Fungi and Bacteria].

2020 ◽  
Author(s):  
D. W. Minter
Keyword(s):  
Czech Republic ◽  
New Zealand ◽  
Canary Islands ◽  
Oryctolagus Cuniculus ◽  
Bos Taurus ◽  
Conservation Status ◽  
Ovis Aries ◽  
Lepus Europaeus ◽  
Falkland Islands ◽  
Faroe Islands

Abstract A description is provided for Bombardioidea stercoris, a dung-inhabiting fungus associated with Bos taurus, Cervidae, Lepus europaeus, L. timidus, Oryctolagus cuniculus and Ovis aries. Some information on its morphology, economic impacts, habitats, dispersal and transmission and conservation status is given, along with details of its geographical distribution (Canada (Quebec), Argentina, Chile, Falkland Islands/Malvinas, Spain (Canary Islands), Australia (Victoria), New Zealand, Belgium, Czech Republic, Denmark (including Faroe Islands), Estonia, France, Germany, Irish Republic, Italy, Luxembourg, Netherlands, Poland, Slovakia, Slovenia, Spain, Sweden, UK and former Yugoslavia).

​Re-sequencing of Whole Genome Jordanian Awassi Ewes using Hiseq Sequencing Technology: Major Step Towards Sheep Genomic Selection

2021 ◽  
Author(s):  
Hussein Migdadi ◽  
Nizar Haddad ◽  
Ruba AlOmari ◽  
Mohammad Brake ◽  
Mustafa AlShdaifat ◽  
...  
Keyword(s):  
Production Systems ◽  
Ovis Aries ◽  
Domestic Sheep ◽  
Major Step ◽  
Illumina Hiseq ◽  
Structure Variation ◽  
Awassi Sheep ◽  
Wide Range ◽  
Number Variation ◽  
Paired End Sequencing

Background: Jordanian Awassi sheep (Ovis aries) is the dominant fat tail sheep breed that appeals to customers because of its various production systems, including fiber, meat and milk. This report is the first whole ewe genome sequence (WGS) of O. aries submitted in the NCBI database from Jordan. Methods: 64 Paired-end sequencing libraries were constructed and subjected to Illumina Hiseq 2500 sequencing system. High-quality reads were aligned against the reference sheep genome and detecting comprehensive sources (SNPs, InDels, SV, CNVs) of genetic variations. We have deposited data sequences at the NCBI under SRA (sequence reads archives) under the accession numbers SRR11128863, PRJNA574879. Result: Genome resequencing of Jordanian Awassi ewe was carried out with approximately 93.88 Gb with a mapping rate and effective mapping depths were 99.28% and 36.32. Around 19 million SNPs, 3,6 million InDels, 35,180 Structure variation and 13,524 copy number variation among the Jordanian ewe genome were detected. This wide range of genetic variation provides a framework for further genetic studies that will help understand the molecular basis underlying phenotypic variation of economically important traits in sheep and improve intrinsic defects in domestic sheep breeds.

Field metabolic rate and water turnover of red kangaroos and sheep in an arid rangeland: an empirically derived dry-sheep-equivalent for kangaroos

2009 ◽  
Vol 57 (1) ◽  
pp. 23 ◽  
Author(s):  
A. J. Munn ◽  
T. J. Dawson ◽  
S. R. McLeod ◽  
D. B. Croft ◽  
M. B. Thompson ◽  
...  
Keyword(s):  
Metabolic Rate ◽  
Grazing Pressure ◽  
Ovis Aries ◽  
Domestic Sheep ◽  
Detailed Knowledge ◽  
Water Turnover ◽  
Field Metabolic Rate ◽  
Red Kangaroo ◽  
Resource Requirements ◽  
Comparative Measure

Sustainable management of pastures requires detailed knowledge of total grazing pressure, but this information is critically lacking in Australia’s rangelands where livestock co-occur with large herbivorous marsupials. We present the first comparative measure of the field metabolic rate (an index of food requirement) of Australia’s largest marsupial, the red kangaroo (Macropus rufus), with that of domestic sheep (Ovis aries; merino breed). We tested the assumption that the grazing pressure of red kangaroos is equivalent to 0.7 sheep, and show this to be a two-fold overestimation of their contribution to total grazing. Moreover, kangaroos had extraordinarily lower rates of water turnover, being only 13% that of sheep. Consequently, our data support arguments that the removal of kangaroos may not markedly improve rangeland capacity for domestic stock. Furthermore, given the low resource requirements of kangaroos, their use in consumptive and non-consumptive enterprises can provide additional benefits for Australia’s rangelands than may occur under traditional rangeland practices.

scholarly journals Withers height of pig - Sus scrofa domestica L. 1758, domestic cow - Bos taurus L. 1758 and sheep - Ovis aries L. 1758 at the “Gornja suma” archaeological site (Novi Sad)

2016 ◽  
pp. 113-125
Author(s):  
Darko Radmanovic ◽  
Desanka Kostic ◽  
Dusanka Veselinov ◽  
Jelena Lujic
Keyword(s):  
Middle Ages ◽  
Sus Scrofa ◽  
Dominant Species ◽  
Bos Taurus ◽  
Archaeological Site ◽  
Ovis Aries ◽  
Novi Sad ◽  
Sus Scrofa Domestica ◽  
The Middle Ages

In spring 2012, osteological material was collected at the ?Gornja Suma? site (site no. 47), located in the territory of Novi Sad, and it was dated to the early 9th century. The withers heights of pig - Sus scrofa domestica, domestic cow - Bos taurus and sheep - Ovis aries, as the three most dominant species at this archaeological site, were analysed based on the length of bones and according to various authors [Boessneck 1956; Zalkin 1960; Matolcsi 1970; Teichert 1975]. It was determined that in these three species the withers heights mostly corresponded to the data from the Middle Ages.

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