Authors: D.A.F. Pires, E.G.A. Coelho, J.B. Melo, D.A.A. Oliveira, M.N. Ribeiro, E. Gus Cothran and R. Juras
Knowledge of genetic diversity and relationships between breeds is very important for conservation programs. Hair samples were collected from 393 individual Nordestino horses and genotyped using 14 microsatellite markers in order to investigate the genetic relationship between this breed and 66 international horse breeds. Ther.. Read More»
Authors: G.F. Silva, V.S. Santos, N.R. Sousa, R.E. Hanada and L. Gasparotto
Black sigatoka, caused by the fungus Mycosphaerella fijiensis (anamorphic stage: Paracercospora fijiensis), was first detected in Brazil in early 1998 in the Benjamin Constant and Tabatinga municipalities in the State of Amazonas, near to where the borders of Brazil, Colombia, and Peru converge. Understanding how cultivars rea.. Read More»
Authors: E.S. de Assis, E.F. dos Reis, J.F.N. Pinto, L.A.S. Contim and L.A.S. Dias
The fragmentation of the original vegetation of the Cerrado biome, caused by the expansion of agricultural areas, mainly in central-west Brazil, calls for an assessment of the native population of this vegetation, especially of the species of interest for domestication and sustainable use. The purpose of this study was to characterize the genetic diversit.. Read More»
Authors: G.F. Silva, R.D.V. Paix�£o, C.B. Queiroz, M.F. Santana, A. Souza, N.R. Sousa, R.E. Hanada and L. Gasparotto
The Enterobacterial repetitive intergenic consensus (ERIC) marker was used to analyze the genetic variability of Mycosphaerella fijiensis, the causative agent of Black Sigatoka disease in banana plants. A total of 123 isolates were used, which were divided into populations based on their original hosts and collection .. Read More»
Authors: D.S. Neiva, A.F. Melo J�ºnior, D.A. Oliveira, V.A. Royo, M.M. Brand�£o and E.V. Menezes
Acrocomia emensis, popularly known as the creeping tucum, belongs to the family Arecaceae, and is an oilseed specie of the Brazilian Savannah. The expansion of agricultural activity has rapidly destroyed its natural habitat, leading to a decrease in its population size. Genetic studies can be used to investigate the genetic variability, and may assist wit.. Read More»
Authors: S. Schlottfeldt, M.E.M.T. Walter, A.C.P. L.F. Carvalho, T.N. Soares, M.P.C. Telles, R.D. Loyola and J.A.F. Diniz-Filho
Biodiversity crises have led scientists to develop strategies for achieving conservation goals. The underlying principle of these strategies lies in systematic conservation planning (SCP), in which there are at least 2 conflicting objectives, making it a good candidate for multi-objective optimization. Although SCP is typically applied at the species leve.. Read More»
Authors: L.S. Gui,H.C. Wang,G.Y. Liu and L.S. Zan
Silent information regulator 5 (SIRT5), a member of the Sirtuin family class III nicotinamide adenine dinucleotide-dependent protein deacetylases, plays an important role in metabolic and aging processes in mammals. We identified 4 single-nucleotide polymorphisms (SNPs) (G22010A, G22052A, G22119T, and G22245C) in the 3' untranslated regions of the SIRT5 g.. Read More»
Authors: S. Marghali, A. Touati, M. Gharbi, D. Sdouga and N. Trifi-Farah
Sequence-related amplified polymorphism (SRAP) markers were used to evaluate the intra- and interspecific variation among 40 Lathyrus genotypes (four species) (Fabaceae). Ten SRAP primer combinations resulted in a total of 94 bands, and they exhibited high interspecific variability. The genetic differentiation among Lathyrus, estimated using AMOVA, was hi.. Read More»
Authors: C.-M. An, H.S. An, J.W. Lee and S.W. Hong
The threadsail filefish, Stephanolepis cirrhifer (Monacanthidae), is found mainly in the western Pacific. It is intensively caught in Korea and is a highly appreciated seafood delicacy. Consequently, the natural population of this species has drastically decreased, despite introductions from hatcheries. To provide information necessary for its conservatio.. Read More»
Authors: J.O. Damasceno, E.A. Ruas, L.A. Rodrigues, C.F. Ruas, E. Bianchini, J.A. Pimenta3 and P.M. Ruas
Studies on intraspecific variation can contribute to the development of conservation strategies by identifying units of conservation for threatened species. Aspidosperma polyneuron is a tropical tree of seasonal semideciduous forests that is currently endangered and protected because it has been heavily logged for lumber, alth.. Read More»