Results 61 to 70 of about 70,872 (279)

Gene expression analysis of bovine embryonic disc, trophoblast and parietal hypoblast at the start of gastrulation [PDF]

open access: yes, 2017
In cattle early gastrulation-stage embryos (Stage 5), four tissues can be discerned: (i) the top layer of the embryonic disc consisting of embryonic ectoderm (EmE); (ii) the bottom layer of the disc consisting of mesoderm, endoderm and visceral hypoblast
Berg, D   +3 more
core   +2 more sources

Inside a duck‐billed dinosaur: Vertebral bone microstructure of Huallasaurus (Hadrosauridae), Upper Cretaceous of Patagonia

open access: yesThe Anatomical Record, EarlyView.
Abstract Dinosaurs evolved a unique respiratory system with air sacs that contributed to their evolutionary success. Postcranial skeletal pneumaticity (PSP) has been used to infer the presence of air sac systems in some fossil archosaurs. While unambiguous evidence of PSP is well documented in pterosaurs and post‐Carnian saurischians, it remains absent
Tito Aureliano   +3 more
wiley   +1 more source

Ascertainment Bias in Cattle SNP Arrays and Implications for Multibreed Genomic Predictions. [PDF]

open access: yesAnim Genet
ABSTRACT Ascertainment bias of SNP for genotyping arrays, where markers are discovered largely in one breed then used to genotype other breeds, can affect scaling and dispersion of genomic breeding values in multibreed genomic evaluations. Detecting and addressing this bias is crucial for robust genetic analyses.
Warburton CL, Hayes BJ.
europepmc   +2 more sources

Faunas mamalógicas do sítio pós-orientalizante do Cabeço Redondo (Sobral da Adiça, Moura) [PDF]

open access: yes, 2013
Resultados da análise dos restos faunísticos recuperados em 2011, na escavação arqueológica do sítio do Cabeço Redondo (Moura, Beja), cuja cronologia aponta para o século V a.C.
Cardoso, João Luís   +1 more
core  

Mineração de textos aplicada à análise de dados de expressão gênica por microarranjos. [PDF]

open access: yes, 2020
Este trabalho se insere no projeto "Rede Genômica Animal" e tem por objetivo construir uma ferramenta que utilize técnicas de mineração de textos para apoiar a interpretação biológica de dados de experimentos de expressão gênica.
HIGA, R. H., YASUDA, R. S.
core  

What's in your next-generation sequence data? An exploration of unmapped DNA and RNA sequence reads from the bovine reference individual. [PDF]

open access: yes, 2015
BackgroundNext-generation sequencing projects commonly commence by aligning reads to a reference genome assembly. While improvements in alignment algorithms and computational hardware have greatly enhanced the efficiency and accuracy of alignments, a ...
Alexander, Leeson J   +9 more
core   +1 more source

Diversity and evolution of 11 innate immune genes in Bos taurus taurus and Bos taurus indicus cattle [PDF]

open access: yesProceedings of the National Academy of Sciences, 2009
The Toll-like receptor ( TLR ) and peptidoglycan recognition protein 1 ( PGLYRP1 ) genes play key roles in the innate immune systems of mammals. While the TLRs recognize a variety of invading pathogens and induce innate immune responses, PGLYRP1
Christopher M, Seabury   +5 more
openaire   +2 more sources

From armadillos to sloths: Patterns and variations in xenarthran coronary anatomy

open access: yesThe Anatomical Record, EarlyView.
Abstract Species of the superorder Xenarthra play a vital ecological role in the Neotropics. Despite their evolutionary significance, anatomical studies on their coronary circulation remain scarce. This study investigated the coronary anatomy of 82 hearts from nine Xenarthra species across the Dasypodidae, Myrmecophagidae, and Bradypodidae.
Wilson Viotto‐Souza   +5 more
wiley   +1 more source

Genetic diversity and effective population sizes of thirteen Indian cattle breeds

open access: yesGenetics Selection Evolution, 2021
Background The genetic structure of a diverse set of 15 Indian indigenous breeds and non-descript indigenous cattle sampled from eight states was examined, based on 777 k single nucleotide polymorphism (SNP) genotypes obtained on 699 animals, with sample
Eva M. Strucken   +5 more
doaj   +1 more source

Synaptomenal Complex Analysis of Four Breeds ofBos Taurus Taurus x B. Taurus IndicusHybrids [PDF]

open access: yesHereditas, 2000
The synaptonemal complex (SC) was analyzed in four F1 hybrids of Bos taurus taurus and B. taurus indicus including Gyr-Simmental (G-S), Nelore Simmental (N-S), Gyr-Holstein-Friesian (G-H) and Nelore-Piemontese (N-P). We analysed the frequency of various types of SC abnormalities and the frequency of cells with SC abnormalities.
Scavone, Marcia D. P.   +3 more
openaire   +3 more sources

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