Heritability
Genetic parameters for postweaning traits in Braunvieh cattle
Authors: D.C. Cucco, J.B.S. Ferraz, J.P. Eler, J.C.C. Balieiro, E.C. Mattos and L. Varona
Genetic parameters for traits related to postweaning growth in Braunvieh cattle, reared under tropical and sub-tropical conditions in Brazil, were studied. Weight traits were weight at 365 days of age (W365, N = 4055), at 450 days (W450, N = 3453), and at 550 days (W550, N = 1946), while weight gains were gain from weaning to .. Read More»
- Genet. Mol. Res. 9(1):
- vol9-1gmr764
- DOI:
- 10.4238/vol9-1gmr764
Diversity and genetic parameter estimates for yield and its components in Jatropha curcas L.
Authors: R.G. Freitas, L.A.S. Dias, P.M.R. Cardoso, A.B. Evaristo, M.F. Silva and N.M. Ara�ºjo
Jatropha curcas L. is one of the most promising oilseeds for biodiesel and biokerosene production, but few basic studies or breeding programs have been conducted for the species. We estimated genetic parameters and diversity based on 10 yield traits in 77 half-sib progenies of J. curcas after 52 months in the field, and evaluated correlations between them.. Read More»
- Genet. Mol. Res. 15(1):
- gmr.15017540
- DOI:
- 10.4238/gmr.15017540
Artificial neural networks reveal efficiency in genetic value prediction
Authors: L.A. Peixoto, L.L. Bhering and C.D. Cruz
The objective of this study was to evaluate the efficiency of artificial neural networks (ANNs) for predicting genetic value in experiments carried out in randomized blocks. Sixteen scenarios were simulated with different values of heritability (10, 20, 30, and 40%), coefficient of variation (5 and 10%), and the number of genotypes per block (150 and 200 .. Read More»
- Genet. Mol. Res. 14(2):
- 2015.June.18.22
- DOI:
- 10.4238/2015.June.18.22
Inheritance of resistance to Pepper yellow mosaic virus in Capsicum baccatum var. pendulum
Authors: C.S. Bento, R. Rodrigues, L.S.A. Gon�§alves, H.S. Oliveira, M.H. Santos, M.C. Pontes and C.P. Sudr�©
We investigated inheritance of resistance to Pepper yellow mosaic virus (PepYMV) in Capsicum baccatum var. pendulum accessions UENF 1616 (susceptible) crossed with UENF 1732 (resistant). Plants from generations P1, P2, F1, F2, BC1:1, and BC1:2 were inoculated and the symptoms were evaluated for 25 days. Subsequently, an area under the disease progress cur.. Read More»
- Genet. Mol. Res. 12(2):
- 2013.April.10.3
- DOI:
- 10.4238/2013.April.10.3
Genetic correlations between visual slaughter conformation scores and growth and reproductive traits in Canchim cattle
Authors: L.H.F. Borba, F. Baldi, F.L.B. Feitosa, L.O.C. da Silva, A.S.C. Pereira and M.M. Alencar
We obtained heritability and (co)variance component estimates for slaughter conformation scores at 420 days of age (SCS420), age at calving (first, AFC; second, ASC), calving occurrence until 38 months of age (CP38), weight at 420 days of age (W420), and scrotal circumference at 420 days (SC420) in Canchim (5/8 Charolais + 3/8.. Read More»
- Genet. Mol. Res. 15(2):
- gmr.15027555
- DOI:
- 10.4238/gmr.15027555
Change in heritability estimates due to half-sib family selection in the maize variety Pahari
Authors: M. Noor, D. Shahwar, H. Rahman, H. Ullah, F. Ali, M. Iqbal, I.A. Shah and I. Ullah
This research was carried out at the Agriculture Research Farm, Khyber Pakhtunkhwa Agricultural University, Peshawar, and the Cereal Crops Research Institute, Pirsabak, Nowshera, during 2009 and 2010. Half-sib families (HS) derived from the maize variety Pahari in spring crop seasons 2009 and 2010 were developed at the Cereal Crops Research Institute. All.. Read More»
- Genet. Mol. Res. 12(2):
- 2013.January.16.1
- DOI:
- 10.4238/2013.January.16.1
Estimating the genetic parameters for liver fat traits in broiler lines divergently selected for abdominal fat
Authors: M.J. Liang, Z.P. Wang, L. Xu, L. Leng1, S.Z. Wang, P. Luan, Z.P. Cao, Y.M. Li and H. Li
Intensive selection of broilers for improved growth rate is known to exert a negative effect on broiler health, such as an increase in body fat (and its related diseases). Excessive fat deposition in the liver can cause fatty liver hemorrhagic syndrome (FLHS); in addition, traits associated with liver fat have also been associated with FLHS. This study ex.. Read More»
- Genet. Mol. Res. 14(3):
- 2015.August.14.27
- DOI:
- 10.4238/2015.August.14.27
Genetic parameters and mapping quantitative trait loci associated with tibia traits in broilers
Authors: B.N.N. Ragognetti, N.B. Stafuzza, T.B.R. Silva, T.C.S. Chud, N.V. Grupioni, V.A.R. Cruz, J.O. Peixoto, K. Nones, M.C. Ledur and D.P. Munari
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 populati.. Read More»
- Genet. Mol. Res. 14(4):
- 2015.December.21.27
- DOI:
- 10.4238/2015.December.21.27
An insight in the genetic control and interrelationship of some quality traits in Brassica napus
Authors: S. Ahmad, H.A. Sadaqat, M.H.N. Tahir and F.S. Awan
A study on three leading lines (KN-256, KN-257, and KN-258) of Brassica napus and an approved variety, Punjab-Sarson, was conducted to gain insight into the genetic control of some quality traits using generation mean analysis. Our results showed that additive gene action predominated in the inheritance of oil content and erucic acid in cross KN-256 x KN-.. Read More»
- Genet. Mol. Res. 14(4):
- 2015.December.22.19
- DOI:
- 10.4238/2015.December.22.19
Genetic parameters for test day somatic cell score in Brazilian Holstein cattle
Authors: C.N. Costa, G.G. Santos, J.A. Cobuci, G. Thompson and J.G.V. Carvalheira
Selection for lower somatic cell count has been included in the breeding objectives of several countries in order to increase resistance to mastitis. Genetic parameters of somatic cell scores (SCS) were estimated from the first lactation test day records of Brazilian Holstein cows using random-regression models with Legendre polynomials (LP) of the order .. Read More»
- Genet. Mol. Res. 14(4):
- 2015.December.29.21
- DOI:
- 10.4238/2015.December.29.21