Research Article

Related GMR Articles

Assisted selection; Inbreeding; Microsatellite marker

Brazil is the world leader in papaya production. However, only a small number of cultivars are registered for commercial planting, mainly owing to delays in obtaining cultivars and the high costs of the field phase of breeding programs. These costs can be reduced when molecular tools are combined with conventional breeding methods. In the present study, we conducted a molecular analysis ... more

F.O. Pinto; M.G. Pereira; L.N. Luz; D.L. Cardozo; H.C.C. Ramos; C.M.P. Macedo
Assisted selection; Citrullus lanatus; Fruit external pattern; SSR

Agronomic performance and external and internal appearance of watermelon (Citrullus lanatus) fruit are important traits that should be taken into consideration during the development of a new cultivar, as well as being the principal identification elements used by the consumer, which are based on the external appearance and quality of the fruit. Externally, the fruit can be ... more

R.N.C.S. Gama; C.A.F. Santos; R.C.S. Dias; J.C.S.F. Alves; T.O. Nogueira
DNA; Germination; Polyvinylpyrrolidone; Sodium dodecyl sulfate; Vigor

Genomic tools for watermelon breeding are becoming increasingly available. A high throughput genotyping system would facilitate the use of DNA markers in marker-assisted selection. DNA extraction from leaf material requires prior seed germination and is often time-consuming and cost prohibitive. In an effort to develop a more efficient system, watermelon seeds of several genotypes and ... more

G. Meru; D. McDowell; V. Waters; A. Seibel; J. Davis; C. McGregor
Isozyme markers; Nicotiana tabacum; Physiological maturity; Vigor

Morphological or isozyme markers related to physiological maturation and deteriorative processes are important in the evaluation of seed quality. Two experiments were conducted to examine the possibility of using isozymes as indicators of quality in tobacco seed lots and fruit appearance as an indicator of physiological maturity in tobacco cultivars, based on the physiological and biochemical ... more

D.B. Andrade; H.P. Silva; M.L.M. Carvalho; A.S. Oliveira; H.O. Santos; I.C.Silva Neta
DNA marker; Genetic diversity; Microsatellite; Syzygium samarangense

Syzygium samarangense (Blume) Merr. & Perry (wax apple) is an important commercial fruit tree in Southeast Asia. Here, microsatellite markers were developed to evaluate genetic diversity and distinguish cultivars in this species. In total, 161 microsatellite loci with sufficient flanking sequences to design primer sets were isolated from wax apple using a magnetic bead- ... more

J.M. Lai; C.C. Tsai; C.R. Yen; Y.Z. Ko; S.R. Chen; I.S. Weng; Y.S. Lin; Y.C. Chiang
DNA marker; Genetic authentication; High-GC primer; RAMP-PCR; Random amplified polymorphic DNA

Random amplified polymorphic DNA (RAPD) is a widely used molecular marker technique. As traditional RAPD has poor reproducibility and productivity, we previously developed an improved RAPD method (termed RAMP-PCR), which increased the reproducibility, number of bands, and efficiency of studies on polymorphism. To further develop the efficiency of this method, we used high-GC content ... more

C.L. Wei; J.L. Cheng; M.A. Khan; L.Q. Yang; S. Imani; H.C. Chen; J.J. Fu; C.L. Wei; J.L. Cheng; M.A. Khan; L.Q. Yang; S. Imani; H.C. Chen; J.J. Fu
Biodiesel; DNA marker; Genetic divergence; Oleaginous seeds

The oleaginous species Jatropha curcas (Euphorbiaceae) exhibits significant potential as a source of biodiesel, but the scarcity of information regarding genetic variability within the species limits its possible exploitation. We examined the genetic diversity and relationships among 97 accessions of J. curcas originating from the Brazilian states ... more

S.O. Gomes; R.F.M. Mendes; R.L.F. Gomes; M.E.C. Veloso; N.H.C. Arriel; D.M.P. Azevedo; G.M.C. Carvalho; P.S.C. Lima
DNA extraction; mtDNA; Parchment; PCR; species identification

Historical parchments in the form of documents, manuscripts, books, or letters, make up a large portion of cultural heritage collections. Their priceless historical value is associated with not only their content, but also the information hidden in the DNA deposited on them. Analyses of ancient DNA (aDNA) retrieved from parchments can be used in various investigations, including, but not ... more

T. Lech; T. Lech