Research Article

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Gametophytic self-incompatibility; Japanese apricot; S-RNase; SFB

SFB, a candidate gene for the pollen S gene, has been identified in several species of Prunus (Rosaceae). We isolated 5 new SFB alleles from 6 Japanese apricot (Prunus mume) lines using a specific Prunus SFB primer pair (SFB-C1F and Pm-Vb), which was designed from conserved regions of Prunus SFB. The nucleotide sequences of ... more

P.P. Wang; Z.H. Gao; Z.J. Ni; W.B. Zhuang; Z. Zhang
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Biometric; Selection; SNPs; Statistics

The aim of this study was to evaluate different methods used in genomic selection, and to verify those that select a higher proportion of individuals with superior genotypes. Thus, F2 populations of different sizes were simulated (100, 200, 500, and 1000 individuals) with 10 replications each. These consisted of 10 linkage groups (LG) of 100 cM each, containing 100 equally spaced markers ... more

L.L. Bhering; V.S. Junqueira; L.A. Peixoto; C.D. Cruz; B.G. Laviola
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Fat thickness; Longissimus muscle area; Nellore cattle; Nonlinear models; Selection

The effect of selection for postweaning weight was evaluated within the growth curve parameters for both growth and carcass traits. Records of 2404 Nellore animals from three selection lines were analyzed: two selection lines for high postweaning weight, selection (NeS) and traditional (NeT); and a control line (NeC) in which animals were selected for postweaning weight close to the ... more

C.C. Coutinho; M.E.Z. Mercadante; A.M. Jorge; C.C.P. Paz; E. Faro; F.M. Monteiro
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Melatonin; PCR-RFLP; Reproduction; Selection; SNP

Buffalo farming in Brazil is increasing, as is the challenge of identifying molecular markers that will improve productivity. Therefore, the aim of this study was to analyze single nucleotide polymorphisms of the receptor gene for the hormone melatonin in buffaloes from northern Brazil by polymerase chain reactions (PCRs) and restriction fragment length polymorphism assays. The PCR ... more

E.B. Machado; B.B. Souza; R.C. Guimarães; J.S.N. Azevedo; E.C. Gonçalves; H.F.L. Ribeiro; S.T.Rolim Filho; S. Filho; E.B. Machado; B.B. Souza; R.C. Guimarães; J.S.N. Azevedo; E.C. Gonçalves; H.F.L. Ribeiro; S.T.Rolim Filho; S. Filho
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Plantains in Brazil are produced from the `Terra Maranhão’, ‘Terrinha’ and ‘D´Angola’ cultivars, which are all susceptible to black Sigatoka, weevils and nematodes. Therefore, the development of resistant plantain cultivars with agronomic characteristics aligned with market demands is the most efficient way to overcome these barriers regarding fruit production. The ... more

Z.S. Gonçalves; D.R.S. da Invenção; C.A. da S. Ledo; C.F. Ferreira; E.P. Amorim
09/22/2015
Cytogenetics; Meiosis; Plant breeding; Pollen viability; X Triticosecale Wittmack

Triticale (X Triticosecale Wittmack) is an intergeneric hybrid derived from a cross between wheat and rye. As a newly created allopolyploid, the plant shows instabilities during the meiotic process, which may result in the loss of fertility. This genomic instability has hindered the success of triticale-breeding programs. Therefore, strategies should be developed to obtain stable ... more

R.M. Giacomin; R. Assis; S.P. Brammer; N. Junior; P.R. Da-Silva
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Agronomic trait; Hybrid; Mungbean; Physiological trait; Plant breeding

Heterotic effects of mungbean hybrids from 25 crosses between parents differing in 9 agronomic and physiological traits were evaluated for various selected traits and seed yield. Significant heteroses were observed in most selected traits, except for the number of seeds per plant. When the heterosis of seed yield was evaluated in these hybrids, significant heterosis was found in 9 crosses, ... more

P.A. Tantasawat; P. Khajudparn; T. Prajongjai; O. Poolsawat
12/28/2015
Bayesian models; Epistasis; Heterosis; Plant breeding

The prediction of single-cross hybrids in maize is a promising technique for optimizing the use of financial resources in a breeding program. This study aimed to evaluate Genomic Best Linear Unbiased Predictors models for hybrid prediction and compare them with the Bayesian Ridge Regression, Bayes A, Bayesian LASSO, Bayes C, Bayes B, and Reproducing Kernel Hilbert Spaces Regression ... more

J.P.R. Santos; H.D. Pereira; R.G. Von Pinho; L.P.M. Pires; R.B. Camargos; M. Balestre
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interspecific hybrid; Modified location model; Multivariate analysis; Plant breeding

The Ward-MLM procedure was used to evaluate genetic variation in four backcross progenies and in their parents, hybrid F1 HD13 and donor parent Passiflora sublanceolata. Sixteen quantitative descriptors and five qualitative characteristics of relevance to ornamental flower production were assessed. Using the pseudo-F and pseudo-T² criteria, we identified four groups among these plants ... more

C.A.F. Melo; M.M. Souza; A.G.R. Sousa; A.P. Viana; E.A. Santos
10/19/2015
Abiotic stress; Drought tolerance; Plant breeding; Sorghum bicolor

Sorghum grain yield can be significantly affected by climatic changes, especially drought and high temperature. The purpose of this study was to evaluate hybrids of grain sorghum grown under normal irrigation conditions or water stress in order to select those likely to be more tolerant of drought. Forty-nine hybrids were grown in a randomized block design experiment, with three ... more

C.B. Menezes; D.C. Saldanha; C.V. Santos; L.C. Andrade; M.P.Mingote Júlio; A.F. Portugal; F.D. Tardin

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