Results 61 to 70 of about 152,008 (179)

Segurança biológica. [PDF]

, 2017
bitstream/item/109278/1/fold06-16-segBiologica ...
EMBRAPA. CENTRO NACIONAL DE RECURSOS GENÉTICOS E BIOTECNOLOGIA
core  

A fractal pattern of hierarchical genetic population structure in mixed stocks across fish segregated by dams revealed by genomic resources for curimba Prochilodus lineatus

Journal of Fish Biology, EarlyView.
Abstract Genomic resources, new microsatellite markers and a novel observation of a fractal pattern in the genetic population structure are presented for curimba, Prochilodus lineatus, a freshwater migratory model species of South America. Our main goals were to investigate the presence of mixed fish stocks and the effects of damming‐induced ...
Gabriel M. Yazbeck, Gésica Aparecida Santana Nascimento, Leiliane Campos Carvalho, Raíssa Cristina Dias Graciano, Rosiane de Paula Santos, Rafael Sachetto Oliveira   +5 more
wiley   +1 more source

Recursos genéticos de macieira. [PDF]

, 2013
A maçã é de grande importância econômica e social, sendo a segunda fruta mais produzida no mundo. Grande parte desse sucesso é devido a atuação dos programas de melhoramento genético no desenvolvimento de cultivares adequadas às necessidades das regiões ...
CASTRO, C. M., PASA, M. da S., SILVA, C. P. da   +2 more
core  

Occurrence of multiple congenital anomalies in Potamotrygon amandae (Elasmobranchii, Potamotrygoninae) embryos, including the first report of bicephaly

Journal of Fish Biology, EarlyView.
Abstract Reports of teratogenic embryos in elasmobranchs have been documented in multiple species, with proposed aetiologies including environmental disturbances, genetic mutations, predation, exposure to endocrine‐disrupting compounds and maternal stress.
Douglas de Castro Ribeiro, Raquel Lopes Queiroz, Cristiéle da Silva Ribeiro   +2 more
wiley   +1 more source

Fitossociologia do componente arbóreo e florí­stica de um remanescente de cerrado sentido restrito contí­guo a áreas de agricultura na porção leste do Distrito Federal, Brasil

Heringeriana, 2014
Na década de 1970 a região leste do Distrito Federal (DF) foi ocupada por grandes cultivos  agrí­colas, restando hoje poucos remanescentes com vegetação nativa. Em um trecho de reserva, com cerca  de 85 ha de cerrado sentido restrito naquela região (15í°
Márcio Honorato Fernandes, Vanessa Pozzi Zoch, Renata Alves Mata, Bruno Machado Teles Walter   +3 more
doaj   +5 more sources

Alternated selection mechanisms maintain adaptive diversity in different demographic scenarios of a large carnivore

BMC Evolutionary Biology, 2019
Background Different population trajectories are expected to impact the signature of neutral and adaptive processes at multiple levels, challenging the assessment of the relative roles of different microevolutionary forces.
Rita G. Rocha, Vanessa Magalhães, José V. López-Bao, Wessel van der Loo, Luis Llaneza, Francisco Alvares, Pedro J. Esteves, Raquel Godinho   +7 more
doaj   +1 more source

Generation of Trichoderma harzianum with pyr4 auxotrophic marker by using the CRISPR/Cas9 system

Scientific Reports, 2021
Trichoderma harzianum is a filamentous fungus used as a biological control agent for agricultural pests. Genes of this microorganism have been studied, and their applications are patented for use in biofungicides and plant breeding strategies.
Amanda A. Vieira, Giovanni R. Vianna, Jessica Carrijo, Francisco J. L. Aragão, Pabline M. Vieira   +4 more
doaj   +1 more source

Evolutionary and environmental drivers of dry‐season deciduousness in a legume genus

New Phytologist, EarlyView.
Summary Leaf deciduousness is a key drought‐avoidance strategy in tropical flora, reducing water loss during seasonal dry periods. While winter‐deciduousness in temperate regions is well‐understood, the evolutionary and environmental drivers of dry‐season deciduousness remain poorly explored.
Cibele Cássia‐Silva, Jeannine Cavender‐Bares, Marcelo F. Simon, Leonel Herrera‐Alsina, Vinicius Marcilio‐Silva, Edeline Gagnon, Rafael Silva Oliveira, Jesús N. Pinto‐Ledezma   +7 more
wiley   +1 more source

Ecological effects on female bill colour explain plastic sexual dichromatism in a mutually-ornamented bird

Scientific Reports, 2021
Sex differences in ornamentation are common and, in species with conventional sex roles, are generally thought of as stable, due to stronger sexual selection on males.
Rita Freitas, Cristiana Marques, Gonçalo C. Cardoso, Sandra Trigo   +3 more
doaj   +1 more source

Horses on the Menu: Patterns and Drivers of Free‐Ranging Horse Consumption by Iberian Wolves

Mammal Review, Volume 56, Issue 2, June 2026.
Free‐ranging mountain ponies can comprise most of the Iberian wolf diet. Through a meta‐analysis of 137 studies, we show that horse consumption is shaped by prey availability, topography and human density, often surpassing wild and domestic ungulates and potentially serving as a buffer for livestock predation.
Joana Freitas, Laura Lagos, Ana Sofia Vaz, Luis Llaneza, Francisco Álvares   +4 more
wiley   +1 more source