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A comprehensive assessment of the transcriptome of cork oak (Quercus suber) thr...

Background: Cork oak (Quercus suber) is one of the rare trees with the ability to produce cork, a material widely used to make wine bottle stoppers, flooring and insulation materials, among many other uses. The molecular mechanisms of cork formation are still poorly understood, in great part due to the difficulty in studying a species with a long life-cycle and for which there is scarce molecular/genomic inform...

Quercus suber – P. cinnamomi interaction: hypothetical molecular mechanism model

Phytophthora cinnamomi Rands is involved in the decline and mortality of Quercus suber L. and Quercus ilex L. in Southern Europe, in particular in Portugal and Spain. The presence and spread of P. cinnamomi in these regions is a severe threat to these oak ecosystems leading to expectable severe consequences for the production of cork and acorns in the near future. Molecular mechanisms underlying oomycete-host i...

A utilização de elicitinas no combate contra Phytophthora cinnamomi na doença d...

Phytophthora cinnamomi e P. cambivora são considerados os agentes patogénicos da doença da tinta do castanheiro. Estes agentes invadem e destroem o sistema radicular, levando à morte das árvores e a importantes perdas económicas. O declínio do montado tem sido associado a vários agentes patogénicos, pragas e factores abióticos. Phytophthora cinnamomi tem sido referido como um potencial agente patogénico do sobr...

Evolução da produção de leite em pequenos ruminantes: polimorfismos do gene da ...

Os efetivos autóctones de pequenos ruminantes têm vindo a diminuir,em parte devido ao seu baixo potencial produtivo. A necessidade de encontrar formas mais expeditas de aumentar o potencial produtivo das nossas raças, e assim promover a sua manutenção bem como a sustentabilidade dos sistemas extensivos onde são explorados, levou à procura de marcadores moleculares, nomeadamente no gene da hormona de crescimento...

Risk assessment and ecological sustainability of cork oak in montado ecosystems

Molecular genetic analysis of a cattle population to reconstitute the extinct A...

Abstract Background Decisions to initiate conservation programmes need to account for extant variability, diversity loss and cultural and economic aspects. Molecular markers were used to investigate if putative Algarvia animals could be identified for use as progenitors in a breeding programme to recover this nearly extinct breed. Methods 46 individuals phenotypically representative of Algarvia cattle were geno...

Associations among milk production traits and glycosylated haemoglobin in dairy...

Abstract Glucose is the major precursor of lactose synthesis in the mammary gland. Lactose the major carbohydrate and osmolyte of milk, controls milk volume and its concentration. Glycosylated haemoglobin (HbG) is a retrospective measure of mean blood glucose level and it is largely unaffected by recent physiological conditions and environmental events. The purposes of this study were to determine the correlati...

Involvement of the beta-cinnamomin elicitin in infection and colonisation of co...

The virulence of two wild type (PA45 and PA37) and two genetically modified (13C: hygromycin resistant; FATSS: hygromycin resistant and β-cin knock-down) Phytophthora cinnamomi strains towards cork oak (Quercus suber) was assessed via a quantitative evaluation of disease symptoms arising from a soil infestation assay, and by a istological analysis of root colonization. Comparison of virulence, as expressed by ...

Molecular genetic analysis of a cattle population to reconstitute the extinct A...

Background: Decisions to initiate conservation programmes need to account for extant variability, diversity loss and cultural and economic aspects. Molecular markers were used to investigate if putative Algarvia animals could be identified for use as progenitors in a breeding programme to recover this nearly extinct breed. Methods: 46 individuals phenotypically representative of Algarvia cattle were genotyped f...

Polymorphisms of the beta-1,4 galactosyltransferase-I gene in Holsteins

The scope of this study was to identify sequence polymorphisms in the β-1,4- galactosyltransferase-I gene (B4GALT1), the gene which encodes the catalytic part of lactose synthase enzyme. Exons of the gene were scanned for the presence of allelic variation among a sample of 400 Iranian Holsteins, using the single strand conformation polymorphism technique followed by sequencing. Nine polymorphic nucleotide sites...