Results 31 to 40 of about 22,383 (204)

Transcriptome analysis of Pinus massoniana Lamb. microstrobili during sexual reversal [PDF]

open access: yesOpen Life Sciences, 2018
AbstractThe normal megastrobilli and microstrobilli before and after the sexual reversal inPinus massonianaLamb. were studied and classified using a transcriptomic approach. In the analysis, a total of 190,023 unigenes were obtained with an average length of 595 bp.
Feng Xiao   +3 more
openaire   +3 more sources

Growth stanza in fish life history using otoliths shape: the protandric Centropomus case (Carangaria: Centropomidae)

open access: yesNeotropical Ichthyology, 2021
Morphoanatomical or physiological changes coupled with changes in body size are known as allometric relationships. The objective of this study was to identify the points of growth changes in Centropomus based on otolith morphometry and morphogeometry ...
Reginaldo Medeiros   +4 more
doaj   +1 more source

Farelo de soja na alimentação de tilápias-do-nilo durante o período de reversão sexual Soybean meal in Nile tilapia diets during the sexual reversion period

open access: yesRevista Brasileira de Zootecnia, 2008
Foram utilizadas 800 larvas com 2 dias de idade com o objetivo de testar o uso de farelo de soja em rações para tilápias-do-nilo durante o período de reversão sexual (30 dias).
Fábio Meurer   +5 more
doaj   +1 more source

New Avenues to Design Toxoplasma Vaccines Based on Oocysts and Cysts

open access: yesFrontiers in Immunology, 2022
Toxoplasmosis is a worldwide disease affecting all warm-blooded animals, including humans. Vaccination strategies aimed at inducing an efficient immune response while preventing transmission have been attempted in the past.
David Arranz-Solís, Jeroen P. J. Saeij
doaj   +1 more source

Energia digestível para larvas de tilápia-do-nilo (Oreochromis niloticus) na fase de reversão sexual Digestible energy for nile tilapia (Oreochromis niloticus) larvae in the sexual reversion phase

open access: yesRevista Brasileira de Zootecnia, 2005
Este trabalho foi realizado com o objetivo de se avaliar o efeito de diferentes níveis de energia digestível na ração sobre o desempenho de larvas de tilápia-do-nilo (Oreochromis niloticus), durante a fase de reversão sexual.
Wilson Rogério Boscolo   +5 more
doaj   +1 more source

PHENOMENON OF FLORAL REVERSION IN BOLTING GARLIC (Allium sativum L.)

open access: yesActa Scientiarum Polonorum: Hortorum Cultus, 2018
In this study, we present investigations of morphological changes in the inflorescence of bolting Allium sativum L., which forms umbel-like inflorescences with small, inconspicuous flowers, bulbils, and leaf-like membranous bracts.
Krystyna Winiarczyk   +2 more
doaj   +1 more source

Roles of estrogen receptors during sexual reversal in Pelodiscus sinensis

open access: yesMolecular Biology Reports, 2023
Abstract The Chinese soft-shelled turtle, Pelodiscus sinensis, exhibits distinct sexual dimorphism, with the males growing faster and larger than the females. During breeding, all-male offspring can be obtained using 17β-estradiol (E2). However, the molecular mechanisms underlying E2-induced sexual reversal have not yet been elucidated ...
Guobin, Chen   +7 more
openaire   +2 more sources

On sexual behavior and sex-role reversal

open access: yesJournal of Psychosomatic Obstetrics & Gynecology, 2005
Sex is not about reproduction; sex is about (re-)combination of DNA. Sex, not reproduction, always involves physical contact between two individuals; to achieve this, strategies of sexual behavior evolved. Sexual behavior, therefore, did not evolve as part of a reproductive strategy, but evolved to enable exchange of genetic material.
openaire   +2 more sources

Parasites of Nile Tilapia larvae Oreochromis niloticus (Pisces: Cichlidae) in concrete ponds in Guanacaste, Northern Costa Rica

open access: yesCuadernos de investigación UNED, 2017
Tilapia is the second most important cultured species in the world fish culture but it can be affected by parasites. We conducted a cross-sectional parasitic study in tilapia larvae during sexual reversion for two seasons in Costa Rica.
Donald Arguedas C.   +3 more
doaj   +1 more source

Measurement error and the effect of inequality on experienced versus reported crime [PDF]

open access: yes, 2006
This paper analyzes measurement errors in crime data to see how they impact econometric estimates, particularly of the key relationship between inequality and crime.
Gibson, John, Kim, Bonggeun
core   +1 more source

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