Abstracts - faqs.org

Abstracts

Biological sciences

Search abstracts:
Abstracts » Biological sciences

Multivariate analysis of male mating success on morphometric traits and chromosome dosage in the grasshopper Sinipta dalmani

Article Abstract:

Multivariate analysis has been carried out relative to male mating success in the grasshopper Sinipta dalmani. the analysis deals with on morphometric traits and chromosome dosage. The conclusions were the same when linear and logistic multiple regression were used on the first three components of PCA analyses. Differences in some body size traits seem to be determined by the karyotype. Of these, length of the third tibia gives the best contribution to variation in fitness. Selective effects detected on chromosome dosage and other morphological trains are indirect and caused by correlated effects.

Author: Remis, Maria Isabel, Pensel, Sara, Vilardi, Juan C.
Publisher: Blackwell Publishers Ltd.
Publication Name: Heredity
Subject: Biological sciences
ISSN: 0018-067X
Year: 2000
Usage, Multivariate analysis, Cell adhesion molecules, Natural selection, Locusts, Locusts (Insects), Inversion (Genetics)

User Contributions:

Comment about this article or add new information about this topic:

CAPTCHA


Negative genetic correlation between traits of the Drosophila head, and interspecific divergence in head shape

Article Abstract:

The pattern of divergence of two sibling species of cactophilic Drosophila was studied for traits known to be negatively correlated in other Drosophila species, face width (FW) and width of both eyes (EW). Head width (HW) equals the sum of FW and EW. Overall findings are support genetic correlation-related constraints on the pattern of interspecific differentiation.

Author: Vilardi, Juan C., Norry, Fabian M., Hasson, Esteban
Publisher: Blackwell Publishers Ltd.
Publication Name: Heredity
Subject: Biological sciences
ISSN: 0018-067X
Year: 2000
Statistical Data Included, Physiological aspects, Developmental biology, Phenotype, Phenotypes, Drosophila, Heredity, Morphology (Animals), Animal morphology

User Contributions:

Comment about this article or add new information about this topic:

CAPTCHA


Female mating behaviour, sexual selection and chromosome 1 karyotype in the seaweed fly, Coelopa frigida

Article Abstract:

Mate choice in female seaweed flies is affected by pleiotropic factors of selection. Willingness to mate is not, contrary to evolutionary theory, always made on the basis of improving the fitness of female flies' offspring. Mate choice for large male size was found to vary between two inversion homokaryotypes in several families.

Author: Day, Thomas H., Gilburn, Andre S.
Publisher: Blackwell Publishers Ltd.
Publication Name: Heredity
Subject: Biological sciences
ISSN: 0018-067X
Year: 1999
Behavior, Flies, Diptera, Sexual selection in animals, Sexual selection (Natural selection)

User Contributions:

Comment about this article or add new information about this topic:

CAPTCHA


Subjects list: Research, Genetic aspects, Argentina, Sexual behavior in animals, Animal sexual behavior, Karyotypes
Similar abstracts:
  • Abstracts: Genetic variation and reproductive success of road verge populations of the rare shrub Grevillea barklyana (Proteaceae)
  • Abstracts: Characterization and mutation analysis of human LEFTY A (ital) and LEFTY B (ital), homologues of murine genes implicated in left-right axis development
  • Abstracts: Defect in export and synthesis of the periplasmic galactose receptor MglB in dnaK mutants of Escherichia coli, and decreased stability of the mglB mRNA
  • Abstracts: Disruption of the Pseudomonas aeruginosa dipZ gene, encoding a putative protein-disulfide reductase, leads to a partial pleiotropic deficiency in c-type cytochrome biogenesis
This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.
Some parts © 2025 Advameg, Inc.