Thesis Abstract

Related GMR Articles

07/22/2008
Amplified fragment length polymorphism; Genetic diversity; Jackfruit; Markers; Polymorphism

Artocarpus heterophyllus Lam., commonly called jackfruit, is a medium-sized evergreen tree that bears high yields of the largest known edible fruit. Yet, it has been little explored commercially due to wide variation in fruit quality. The genetic diversity and genetic relatedness of 50 jackfruit accessions were studied using amplified fragment length polymorphism markers. Of 16 primer ... more

S. Shyamalamma; S.B.C. Chandra; M. Hegde; P. Naryanswamy
08/05/2008
Aspergillus flavus; Genetic diversity; Inter-simple sequence repeats; Internal transcribed spacer; Molecular markers; Random amplified polymorphic DNA

The Aspergillus genus belongs to a filamentous fungal group characterized by wide dispersion in the environment. Some species are associated with diseases, especially in immunocompromised patients, while others are of economical importance due to aflatoxin production or biotechnological applications. Its species identification is nowadays performed by traditional techniques combined ... more

P.P. Batista; J.F. Santos; N.T. Oliveira; A.P.D. Pires; C.M.S. Motta; E.A.LunaAlves Lima
02/19/2008
Amphibia; Anthropogenic; Cytogenetic; Genetic diversity; Leptodactylidae; Random amplified polymorphic DNA

Cytogenetic and random amplified polymorphic DNA analyses carried out in the species Leptodactylus podicipinus, L. ocellatus, L. labyrinthicus, and L. fuscus from rural and urban habitats of the northwest region of São Paulo State, Brazil, showed that the karyotypes (2n = 22), constitutive heterochromatin distribution and nucleolus organizer region ... more

M.P. Arruda; E. Morielle-Versute
12/20/2011
Aegiphilla sellowiana; Genetic conservation; Genetic diversity; RAPD; Riparian population; Tropical tree

The Tibagi River, located in southern Brazil, is associated with a significant degree of environmental heterogeneity, along its 550 km extension. There is concern about the integrity of this river’s ecosystem, as human interference has been increasing. Aegiphila sellowiana (Lamiaceae) is an important pioneer tree species, commonly found near rivers; the fruit is consumed by ... more

C. Medri; E.A. Ruas; C.F. Ruas; P.S. Medri; M.E. Medri; P.M. Ruas
11/29/2011
Genetic diversity; Molecular marker; Piper; RAPD; SRAP

Random amplified polymorphic DNA (RAPD) and sequence-related amplified polymorphism (SRAP) analysis were applied to 74 individual plants of Piper spp in Hainan Island. The results showed that the SRAP technique may be more informative and more efficient and effective for studying genetic diversity of Piper spp than the RAPD technique. The overall level of genetic ... more

Y. Jiang; J.P. Liu
10/06/2011
Coffea; Discriminant analysis; Genetic diversity; Microsatellite marker

Coffee is one of the main agrifood commodities traded worldwide. In 2009, coffee accounted for 6.1% of the value of Brazilian agricultural production, generating a revenue of US$6 billion. Despite the importance of coffee production in Brazil, it is supported by a narrow genetic base, with few accessions. Molecular differentiation and diversity of a coffee breeding program were assessed ... more

R.F. Missio; E.T. Caixeta; E.M. Zambolim; G.F. Pena; L. Zambolim; L.A.S. Dias; N.S. Sakiyama
09/22/2011
Aleyrodidae; Genetic diversity; Insecta; Molecular characterization; Whitefly

Bemisia tabaci (Hemiptera: Aleyrodidae) consists of a complex of morphologically indistinct biotypes that vary mainly in their capacity to transmit plant viruses and to induce physiological disorders in plants of economic importance. The adaptability of B. tabaci to many regions of the world has fostered the appearance of various biotypes and has resulted in a broad spectrum of ... more

G.E. Valle; A.L. Lourenção; M.I. Zucchi; J.B. Pinheiro; A.G. Abreu
10/13/2011
Clonal reproduction; Genetic diversity; Pitcairnia albiflos; RAPD markers

Pitcairnia albiflos is a Bromeliaceae species endemic to Brazil that has been included as data-deficient in the extinction risk list of Brazilian flora. We analyzed genetic variability in P. albiflos populations using RAPD markers to investigate population structure and reproductive mechanisms and also to evaluate the actual extinction risk level of this species. Leaves of 56 ... more

R. Domingues; M.A. Machado; R.C. Forzza; T.D. Melo; S. Wohlres-Viana; L.F. Viccini
07/22/2011
EST-SSRs; Genetic diversity; Genomic-SSRs; Gossypium hirsutum

Estimations of genetic diversity and of relationships between varieties are crucial for cotton breeding. The genetic diversity of 59 core cotton cultivars, most of which were collected from China’s main cotton-growing areas, was analyzed based on genomic and newly developed expressed sequence tag-derived microsatellite markers, using total DNA extracted from fresh leaf tissue. Three ... more

Y. Zhang; X.F. Wang; Z.K. Li; G.Y. Zhang; Z.Y. Ma
07/25/2011
Clustering; Genetic correlation; Genetic diversity; Heritability; Oil content

Jatropha curcas, internationally and locally known, respectively, as physic nut and pinhão manso, is a highly promising species for biodiesel production in Brazil and other countries in the tropics. It is rustic, grows in warm regions and is easily cultivated. These characteristics and high-quality oil yields from the seeds have made this plant a priority for biodiesel programs ... more

R.G. Freitas; R.F. Missio; F.S. Matos; M.D.V. Resende; L.A.S. Dias

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