Research Article

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Selection among broilers for performance traits is resulting in locomotion problems and bone disorders, once skeletal structure is not strong enough to support body weight in broilers with high growth rates. In this study, genetic parameters were estimated for body weight at 42 days of age (BW42), and tibia traits (length, width, and weight) in a population of broiler chickens. ... more

B.N.N. Ragognetti; N.B. Stafuzza; T.C.S. Chud; N.V. Grupioni; V.A.R. Cruz; J.O. Peixoto; K. Nones; M.C. Ledur; D.P. Munari; T.B.R. Silva
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Brassica napus; Correlation coefficients; Gene action; Heritability; Quality traits

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S. Ahmad; H.A. Sadaqat; M.H.N. Tahir; F.S. Awan
11/24/2015
Heritability; Longevity; Selection of females; Threshold model

We evaluated the genetic association of growth traits [weight adjusted to 205 days of age (W205), 365 days of age (W365), and 550 days of age (W550); weight gain between 205 days of age and 365 days of age (WG1) and between 365 days of age and 550 days of age (WG2)] and reproductive traits [age at first calving (AFC); first calving interval (FCI)] with stayability in the herd (STAY), ... more

E.C.A. Rizzo; F.R.A. Neto; I.D.P.S. Diaz; M.M. Dias; R.B. Costa; H.T. Ventura; H.N. Oliveira; A.J.S. Falcão
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General and specific combining ability; Genotypic correlations; Heritability; Principal component analysis; Zea mays L.

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R.W. Muhammad; A. Qayyum; A. Hamza; M.Q. Ahmad; N.S. Naseer; S. Liaqat; B. Ahmad; W. Malik; E. Noor
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Accuracy; Computer simulation; Detection power; Heritability; Multiple procedures; QTL mapping

The study of quantitative trait effects is of great significance for molecular marker-assisted breeding. The accuracy of quantitative trait loci (QTL) mapping is the key factor affecting marker-assisted breeding, and is extremely significant. The effect of different heritability rates (10, 30, 50, 70, and 90%) on the accuracy of QTL mapping of five recombinant inbred lines (RILs) were ... more

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Acrocomia aculeata; Biofuel; Genetic diversity; Genetic parameters; Heritability; Plant genetic resource

Macaw palm (Acrocomia aculeata) is a promising species for use in biofuel production, and establishing breeding programs is important for the development of commercial plantations. The aim of the present study was to analyze genetic diversity, verify correlations between traits, estimate genetic parameters, and select different accessions of A. ... more

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11/21/2016
Gain from selection; Heritability; Phaseolus vulgaris; Simultaneous selection

Slow seed coat darkening is desirable in common bean cultivars and genetic parameters are important to define breeding strategies. The aims of this study were to estimate genetic parameters for plant architecture, grain yield, grain size, and seed-coat darkening in common bean; identify any genetic association among these traits; and select lines that associate ... more

R.C. Alvares; F.C. Silva; L.C. Melo; P.G.S. Melo; H.S. Pereira; R.C. Alvares; F.C. Silva; L.C. Melo; P.G.S. Melo; H.S. Pereira
11/21/2016
Breeding; Genomic prediction; Heritability; Prediction ability; Quantitative genetics

Genomic selection is a useful technique to assist breeders in selecting the best genotypes accurately. Phenotypic selection in the F2 generation presents with low accuracy as each genotype is represented by one individual; thus, genomic selection can increase selection accuracy at this stage of the breeding program. This ... more

L.A. Peixoto; L.L. Bhering; C.D. Cruz
05/16/2019
Heritability; Inheritance pattern; Phaseolus vulgaris; Selection index

The development of common bean cultivars with biofortified grains for macrominerals and a seed coat color pattern that satisfies consumer preference is a new demand of breeding programs. However, combined selection for seed coat color and macromineral concentrations in common beans is unprecedented. The objectives of this work were to obtain estimates of genetic ... more

N.D. Ribeiro; H.C. Mezzomo; G.Gdos Santos
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Berries; Heritability; Plant breeding; RELM/BLUP; Rubus idaeus; Small fruits

Raspberry is a berry crop of great economic importance, and its cultivation has expanded worldwide. Information on the genetic parameters of raspberry for use in breeding programs is currently limited. We used Restricted Maximum Likelihood (REML) and Best Linear Unbiased Prediction (BLUP) to estimate variance components and predict genetic parameters for ... more

P.M. Marchi; I.R. Carvalho; D. Höhn; B. Carra; V.J. Szareski; M. Dini; M. Vizzotto; L.E.C. Antunes

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