RESUMO
Domesticated herbivores are an important agricultural resource that play a critical role in global food security, particularly as they can adapt to varied environments, including marginal lands. An understanding of the molecular basis of their biology would contribute to better management and sustainable production. Thus, we conducted transcriptome sequencing of 100 to 105 tissues from two females of each of seven species of herbivore (cattle, sheep, goats, sika deer, horses, donkeys, and rabbits) including two breeds of sheep. The quality of raw and trimmed reads was assessed in terms of base quality, GC content, duplication sequence rate, overrepresented k-mers, and quality score distribution with FastQC. The high-quality filtered RNA-seq raw reads were deposited in a public database which provides approximately 54 billion high-quality paired-end sequencing reads in total, with an average mapping rate of ~93.92%. Transcriptome databases represent valuable resources that can be used to study patterns of gene expression, and pathways that are related to key biological processes, including important economic traits in herbivores.
Assuntos
Herbivoria , Transcriptoma , Animais , Bovinos/genética , Feminino , Coelhos/genética , Bases de Dados Genéticas , Cervos/genética , Equidae/genética , Cabras/genética , Cavalos/genética , Ovinos/genéticaRESUMO
The dynamical stability, crystal structure, and mechanical properties of semi-titanium boride (Ti2B) are extensively studied using the pseudopotential plane-wave method within first-principles calculations. Soft transverse acoustic phonon modes are identified in the material, which has been assumed for a long time to have an Al2Cu-type structure with a I4/mcm space group. Using the frozen-phonon method, a tetragonal I4/m structure is uncovered to be energetically more stable and have similar diffraction patterns compared to the previously assumed Al2Cu-type structure. Phonon dispersion and elastic constant calculations reveal the dynamical and mechanical stability of the I4/m structure of Ti2B at ambient pressure. The calculated high elastic constants, modulus, and ideal strength show that Ti2B possesses outstanding mechanical properties.
