Results: 53

Foraging behavior and at-sea distribution of White-Tailed Tropicbirds in tropical ocean

Braz. j. biol; 78 (3), 2018
Abstract We used miniaturized GPS loggers and site observations to access foraging patterns and nest behaviour of the White-tailed Tropicbird Phaethon lepturus (WTTB), an endangered species at its South Atlantic breeding colony. Dual foraging pattern was observed with alternation between long and short f...

Encuentro del padre con su hijo con síndrome de Down: sufrimiento y empatía

Pensam. psicol; 16 (2), 2018
Resumen Objetivo. Comprender la experiencia de crianza de niños con síndrome de Down (SD), desde la perspectiva del padre. Método. Investigación cualitativa histórica hermenéutica en la que participaron 20 padres, con edades comprendidas entre los 32 y los 60 años, de niños con SD. Se llevaron ...

Genotyping-by-sequencing based single nucleotide polymorphisms enabled Kompetitive Allele Specific PCR marker development in mutant Rubus genotypes

Background: Rubus is an economically important fruit crop across the globe. Recently, several Rubus mutant genotypes with improved agronomic traits have been developed using gamma ray irradiation. This study investigated genetic diversity and variations in Rubus mutant genotypes using single nucleotide p...

Molecular characterization and genetic diversity of different genotypes of Oryza sativa and Oryza glaberrima

Background: Availability of related rice species is critical for rice breeding and improvement. Two distinct species of domesticated rice exist in the genus Oryza: Oryza sativa (Asian rice) and Oryza glaberrima (African rice). New rice for Africa (NERICA) is derived from interspecific crosses between the...

Transcriptome analysis of Cinnamomum longepaniculatum by high-throughput sequencing

Background: Cinnamomum longepaniculatum is an important commercial crop and the main source of volatile terpenoids. The biosynthesis of key bioactive metabolites of C. longepaniculatum is not well understood because of the lack of available genomic and transcriptomic information. To address this issue, w...

The peculiar breeding biology of the Amazonian frog Allobates subfolionidificans (Aromobatidae)

An. acad. bras. ciênc; 89 (2), 2017
ABSTRACT Allobates subfolionidificans is a vulnerable and endemic leaf-litter frog from the state of Acre, Brazilian Amazonia. We monitored a population of A. subfolionidificans through regular censuses and mark-recapture of 181 individuals during an entire breeding season to characterize its reproductiv...

Musk gland seasonal development and musk secretion are regulated by the testis in muskrat (Ondatra zibethicus)

Biol. Res; 50 (), 2017
BACKGROUND: The muskrat is a seasonal breeder. Males secrete musk to attract females during the breeding season. The testosterone binding to the androgen receptor (AR) in musk glands of muskrat may play an important role conducting the musk secretion process. METHODS: The musk gland, testis and blood sam...

Breeding of White-tailed Tropicbirds (Phaethon lepturus) in the western South Atlantic

Braz. j. biol; 76 (3), 2016
Abstract Basic information on natural history is crucial for assessing the viability of populations, but is often lacking for many species of conservation concern. One such species is the White-tailed Tropicbird, Phaethon lepturus (Mathews, 1915). Here, we address this shortfall by providing detailed inf...

Uniparental genetic systems: a male and a female perspective in the domestic cattle origin and evolution

Electron. j. biotechnol; 19 (5), 2016
Over the last 20 years, the two uniparentally inherited marker systems, namely mitochondrial DNA and Y chromosome have been widely employed to solve questions about origin and prehistorical range expansions, demographic processes, both in humans and domestic animals. The mtDNA and the Y chromosome, with ...