Mating Delay
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. Influência da idade da fêmea na performance reprodutiva e longevidade de Argyrotaenia sphaleropa (Lepidoptera, Tortricidae) / Female age effect on reproductive performance and longevity of Argyrotaenia sphaleropa (Lepidoptera, Tortricidae)
Argyrotaenia sphaleropa (Meyrick, 1909) é uma praga generalista de fruteiras na América do Sul. A influência da idade da fêmea na performance reprodutiva e longevidade foi investigada sob condições laboratoriais. Fêmeas virgens com 1, 3, 5 e 8 dias de idade foram pareadas com machos virgens com idade entre 0 e 3 dias. Longevidade, sucesso no acasalame
Publicado em: 2010
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2. Fatores da biologia reprodutiva que influenciam o menejo comportamental de Tuta absoluta (Meyrick) (Lepidoptera : Gelechiidae). / Reproductive biology factors influencing the Behavioral management of Tuta absoluta (Meyrick) (Lepidoptera : Gelechiidae).
A traça-do-tomateiro, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) é a principal praga da cultura do tomate nas principais regiões produtoras do Brasil e várias táticas de controle foram usadas com resultados variados. A técnica da coleta massal foi uma das táticas utilizadas, e apesar da redução da população dos machos, não se obteve contr
Publicado em: 2008
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3. Histology and Histochemistry of the Reproductive Tract of Melipona quadrifasciata anthidioides (Hymenoptera, Apidae) in Virgin and Physogastric Queens / Histologia e histoquímica do aparelho reprodutor de Melipona quadrifasciata anthidioides (Hymenoptera, Apidae) em rainhas virgens e copuladas
Due to the economic and ecological importance, and the extinction risk that Meliponini is experiencing, many works were developed in search of understanding of reproductive biology of these bees. The importance of the mating for ovaries development and oocytes maturation in insects has been investigated, but there are few research concerning the consequences
Publicado em: 2006
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4. Alternative male life histories in bluegill sunfish
Male bluegill sunfish are shown to have two alternative mating strategies: cuckoldry or parental care. Cuckolder males first mature at age 2. They follow a developmental sequence of sneaking and then mimicking female behavior to deceptively gain access to spawnings. Males who become parentals (construct nests, attract females, provide brood care) delay matur
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5. Increased competitiveness of nematode sperm bearing the male X chromosome
Male offspring, which cannot reproduce independently, represent a cost of sexual reproduction. This cost is eliminated by the production of hermaphroditic offspring in the self-fertilizing nematode Caenorhabditis briggsae. However, these hermaphrodites can outcross by mating with males. Half the sperm received from males contain no sex chromosome and therefo
The National Academy of Sciences of the USA.
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6. Mutations in XRS2 and RAD50 delay but do not prevent mating-type switching in Saccharomyces cerevisiae.
In Saccharomyces cerevisiae, a large number of genes in the RAD52 epistasis group has been implicated in the repair of chromosomal double-strand breaks and in both mitotic and meiotic homologous recombination. While most of these genes are essential for yeast mating-type (MAT) gene switching, neither RAD50 nor XRS2 is required to complete this specialized mi
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7. A Mitogen-Activated Protein Kinase Pathway Modulates the Expression of Two Cellulase Genes in Cochliobolus heterostrophus during Plant Infection
Conserved eukaryotic signaling elements play an important role in the development of fungal pathogens on their hosts. Chk1, a mitogen-activated protein kinase (MAPK), functions in virulence, mating, and sporulation of the maize leaf pathogen Cochliobolus heterostrophus. Suppression subtractive hybridization was used to identify fungal genes whose expression
American Society of Plant Biologists.
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8. GENE TRANSFER BY F′ STRAINS OF ESCHERICHIA COLI K-12 I. : Delay in Initiation of Chromosome Transfer1
Pittard, James (Yale University, New Haven, Conn.), John S. Loutit, and Edward A. Adelberg. Gene transfer by F′ strains of Escherichia coli K-12. I. Delay in initiation of chromosome transfer. J. Bacteriol. 85:1394–1401. 1963.—Two different F′ strains were found to transfer both F-merogenote and chromosomal markers to recipient strains. When zygotes
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9. The highly conserved N-terminal domains of histones H3 and H4 are required for normal cell cycle progression.
The N-terminal domains of the histones H3 and H4 are highly conserved throughout evolution. Mutant alleles deleted for these N-terminal domains were constructed in vitro and examined for function in vivo in Saccharomyces cerevisiae. Cells containing a single deletion allele of either histone H3 or histone H4 were viable. Deletion of the N-terminal domain of
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10. A strategy for the generation of conditional mutations by protein destabilization.
Conditional mutations such as temperature-sensitive (ts) mutations are important for the analysis of protein function but are often difficult, or impossible, to obtain. Here we present a simple method for generating conditional mutations based on the use of a protein-destabilizing genetic element in combination with systems allowing the induction and repress
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11. Mice lacking major histocompatibility complex class I and class II molecules.
Mice lacking major histocompatibility complex (MHC) antigens were generated by mating beta 2-microglobulin-deficient, and therefore class I-deficient, animals with MHC class II-deficient animals. When housed under sterile conditions, the resulting MHC-deficient mice appear healthy, survive for many months, and breed successfully. Phenotypically, MHC-deficien
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12. Genetic divergence of the seminal signal-receptor system in houseflies: the footprints of sexually antagonistic coevolution?
To understand fully the significance of cryptic female choice, we need to focus on each of those postmating processes in females which create variance in fitness among males. Earlier studies have focused almost exclusively on the proportion of a female's eggs fertilized by different males (sperm precedence). Yet, variance in male postmating reproductive succ