
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»
Authors: C.A.F. Reis, F.M.A. Gon�§alves, L.N. Rosse, R.R.G.F. Costa and M.A.P. Ramalho
We examined the correspondence in performance between trees selected from a family test and their respective clones from a clonal test of Eucalyptus. Full-sib families were obtained from controlled pollination among individuals of Eucalyptus grandis and between E. grandis and E. urophylla. The hybridizations did not follow a f.. Read More»
Authors: A.A. Boligon, F. Baldi, M.E.Z. Mercadante2, R.B. Lobo, R.J. Pereira and L.G. Albuquerque
We quantified the potential increase in accuracy of expected breeding value for weights of Nelore cattle, from birth to mature age, using multi-trait and random regression models on Legendre polynomials and B-spline functions. A total of 87,712 weight records from 8144 females were used, recorded every three months from birth .. Read More»
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»
Authors: J.L.R. Sarmento, R.A. Torres, W.H. Sousa, R.N.B. L�´bo,L.G. Albuquerque, P.S. Lopes, N.P.S. Santos and A.B. Bignard
Polynomial functions of different orders were used to model random effects associated with weight of Santa Ines sheep from birth to 196 days. Fixed effects included in the models were contemporary groups, age of ewe at lambing, and fourth-order Legendre polynomials for age to represent the average growth curve. In the random p.. Read More»
Authors: B.A. Rezende, C.B. Ribeiro, D.H.L. Teixeira, F.M.A. Gon�§alves and F. Souza Sobrinho
The aim of this study was to use multivariate methods and Pearson and partial correlations to disregard phenotypic characteristics that contribute little to differentiation between Brachiaria ruziziensis genotypes. Eighty-one genotypes of B. ruziziensis were assessed in completely randomized blocks with three replications. Ten phenotypic characteristics w.. Read More»
Authors: H.R. Mirzaei, A.P. Verbyla and W.S. Pitchford
A joint growth-carcass model using random regression was used to estimate the (co)variance components of beef cattle body weights and carcass quality traits and correlations between them. During a four-year period (1994-1997) of the Australian “southern crossbreeding project”, mature Hereford cows (N = 581) were ma.. Read More»
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»
Authors: S. Munir, S.B. Hussain, H. Manzoor, M.K. Quereshi, M. Zubair,W. Nouman, A.N. Shehzad, S. Rasul and S.A. Manzoor
Interspecific and intraspecific hybrids show varying degrees of heterosis for yield and yield components. Yield-component traits have complex genetic relationships with each other. To determine the relationship of yield-component traits and fiber traits with seed cotton yield, six lines (Bt. CIM-599, CIM-573, MNH-786, CIM-554,.. Read More»
Authors: L.L. Li, H.G. Zhang, X.G. Shao, J.C. Gao, H.Y. Zhang and R.Z. Liu
The 11q terminal deletion disorder is a rare genetic disorder associated with numerous clinical features. A few case reports have been made about de novo interstitial deletion of chromosome 11q. However, due to the heterogeneity in size and position of the deletions, a clear genotype-phenotype correlation is not easily made. H.. Read More»