Research Article

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05/12/2009
greenhouse; pollination; Stingless bees; strawberry

We investigated the success of two stingless bee species in pollinating strawberries in greenhouses. Three greenhouses and one open field area were used; one greenhouse had only strawberry plants (control), another (G1) had three colonies of Scaptotrigona aff. depilis and another (G2) had three colonies of Nannotrigona testaceicornis. In the open field area, the ... more

A.C. Roselino; S.B. Santos; M. Hrncir; L.R. Bego
03/07/2013
EST; Genetic diversity; SNPs; strawberry

Single nucleotide polymorphisms (SNPs) occur at high frequencies in both plant and animal genomes and can provide broad genome coverage and reliable estimates of genetic relationships. The availability of expressed sequence tag (EST) data has made it feasible to discover SNPs. DNA analysis is crucial in genetic studies not only for strawberry breeding programs but also for ... more

A.J. Ge; J. Han; X.D. Li; M.Z. Zhao; H. Liu; Q.H. Dong; J.G. Fang
12/07/2015
Ethylene signaling; Non-climacteric fruit; Ripening genes; RT-qPCR; strawberry

In contrast to climacteric fruits, in which ethylene is known to be pivotal, the regulation of ripening in non-climacteric fruits is not well understood. The strawberry is a typical example of a non-climacteric fruit, which has been used as a model system of these types of fruit. In this study, the effect of exogenous ethephon on the expression of ethylene biosynthesis and signaling genes ... more

P.Z. Lopes; I.M. Fornazzari; A.T. Almeida; C.W. Galvão; R.M. Etto; J. Inaba; R.A. Ayub
10/19/2015
Fruit ripening and softening; Fruit texture; Gene expression analysis; Polygalacturonase; strawberry

The role of polygalacturonase (PG) in the development, ripening, and softening of fruit from two strawberry cultivars with different flesh firmness and softening characteristics was compared. Changes in PG activity and gene expression during development, ripening and softening were measured. The PG genes from each cultivar were cloned and analyzed, and were classified with other ... more

H.C. Zhou; G. Li; X. Zhao; L.J. Li
08/05/2016
Bioinformatics; MLO; Phylogenic relationship; strawberry

The MLO (powdery mildew locus O) gene family is important in resistance to powdery mildew (PM). In this study, all of the members of the MLO family were identified and analyzed in the strawberry (Fragaria vesca) genome. The strawberry contains at least 20 members of the MLO family, and the protein sequence contained between 171 and 1485 amino acids, with ... more

L.X. Miao; M. Jiang; Y.C. Zhang; X.F. Yang; H.Q. Zhang; Z.F. Zhang; Y.Z. Wang; G.H. Jiang; L.X. Miao; M. Jiang; Y.C. Zhang; X.F. Yang; H.Q. Zhang; Z.F. Zhang; Y.Z. Wang; G.H. Jiang
07/17/2015
Breeding; Germplasm bank; Pepper; Polymorphism; Simple sequence repeat

In order to support further genetic, diversity, and phy­logeny studies of Capsicum species, the transferability of a Capsicum annuum L. simple sequence repeat (SSR) microsatellite set was ana­lyzed for C. frutescens L. (“malagueta” and “tabasco” peppers) and C. chinense Jacq. (smell peppers, among other types). A total of 185 SSR primers were evaluated ... more

S.I.C. Carvalho; C.F. Ragassi; I.B. Oliveira; Z.P.S. Amaral; F.J.B. Reifschneider; F.G. Faleiro; G.S.C. Buso
10/27/2015
Androgenesis; Breeding; Bud morphology; Culture Media; Genotypes

The aim of this study was to relate flower bud size with microspore developmental stages and the induction of embryos in the anthers of different ornamental pepper (Capsicum annuum L.) genotypes. Flower buds were randomly collected and visually divided into three classes based on both petal and sepal size. The length and diameter of the bud as well as the length of the petal, ... more

P.A. Barroso; M.M. Rêgo; E.R. Rêgo; W.S. Soares
05/06/2016
Abiotic stress; Breeding; Manihot esculenta Crantz; Post-harvest losses; REML/BLUP

Tolerant varieties can effectively control post-harvest physiological deterioration (PPD) of cassava, although knowledge on the genetic variability and inheritance of this trait is needed. The objective of this study was to estimate genetic parameters and identify sources of tolerance to PPD and their stability in cassava accessions. Roots from 418 cassava accessions, grown in four ... more

M.T. Venturini; L.R. Santos; C.I.A. Vildoso; V.S. Santos; E.J. Oliveira; M.T. Venturini; L.R. Santos; C.I.A. Vildoso; V.S. Santos; E.J. Oliveira
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
12/02/2016
Animal Shells; Animals; Bivalvia; Breeding; Evolution, Molecular; Female; Fresh Water; Genetic variation; Genetics, Population; male; Microsatellite Repeats; Phenotype; Phylogeny; Quantitative trait loci

Four Hyriopsis cumingii populations, a breeding population (BP), a cultured population (FP), two wild populations from Poyang Lake (PY) and Dongting Lake (DT), and an H. schlegelii population were collected (JX), and the first filial generations (F1) were bred synchronously. The shell nacre polymorphisms, population genetic diversity, and genetic structures of the F1 of each population were ... more

L.M. Wu; Z.Y. Bai; X.J. Liu; C. Jin; H. Yin; J.L. Li

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