A.S. Ledo
Genetic diversity of Saccharum complex using ISSR markers
Sugarcane (Saccharum sp, Poaceae) is native to Southeast Asia, and due to growing demand as raw material, its cultivation recently expanded to new frontiers. The genetic diversity analysis is essential for targeting strategies in the formation and maintenance of a germplasm. This study aimed to assess the genetic diversity of 26 accessions of sugarcane from the Acti.. Read More»
Genet. Mol. Res. 16(3): gmr16039788
DOI: 10.4238/gmr16039788
Descriptor selection for banana accessions based on univariate and multivariate analysis
Our objective was to establish a minimum number of morphological descriptors for the characterization of banana germplasm and evaluate the efficiency of removal of redundant characters, based on univariate and multivariate statistical analyses. Phenotypic characterization was made of 77 accessions from Bahia, Brazil, using 92 descriptors. The selection of the descriptors was carried out by prin.. Read More»
Genet. Mol. Res. 12(2): 2013.May.14.1
DOI: 10.4238/2013.May.14.1
Genetic diversity in natural populations of mangaba in Sergipe, the largest producer State in Brazil
Mangaba (Hancornia speciosa Gomes) is found in areas of coastal tablelands in the Brazilian Northeast and Cerrado regions. This species has been subjected to habitat fragmentation that is mainly due to human activity, and requires conservation strategies. The aim of this study was to analyze the structure and inter- and intrapopulation genetic diversity of natural populations of H. speciosa Gom.. Read More»
Genet. Mol. Res. 15(3): gmr.15038624
DOI: 10.4238/gmr.15038624
Genetic fidelity and variability of micropropagated cassava plants (Manihot esculenta Crantz) evaluated using ISSR markers
Molecular markers are efficient for assessing the genetic fidelity of various species of plants after in vitro culture. In this study, we evaluated the genetic fidelity and variability of micropropagated cassava plants (Manihot esculenta Crantz) using inter-simple sequence repeat markers. Twenty-two cassava accessions from the Embrapa Cassava & Fruits Germplasm Bank were used. For each acce.. Read More»
Genet. Mol. Res. 14(3): 2015.July.14.2
DOI: 10.4238/2015.July.14.2
Selection of putative Terra Maranh?£o plantain cultivar mutants obtained by gamma radiation
The aim of this study was to select putative Terra Maranhão plantain cultivar mutants obtained by gamma radiation, with good agronomic traits and short height. A total of 315 buds were irradiated in vitro with gamma rays in doses of 20 Gy and were subcultivated and evaluated in the field over 2 production cycles. The clones were evaluated to select the best 10% of the plants. Cultivation.. Read More»
Genet. Mol. Res. 14(2): 2015.May.11.1
DOI: 10.4238/2015.May.11.1
Genetic dissimilarity of putative gamma-ray-induced â??Preciosa - AAAB-Pome typeâ?? banana (Musa sp) mutants based on multivariate statistical analysis
Bananas are among the most important fruit crops worldwide, being cultivated in more than 120 countries, mainly by small-scale producers. However, short-stature high-yielding bananas presenting good agronomic characteristics are hard to find. Consequently, wind continues to damage a great number of plantations each year, leading to lodging of plants and bunch loss. .. Read More»
Genet. Mol. Res. 10(4): 2011.October.25.2
DOI: 10.4238/2011.October.25.2
Genetic dissimilarity and selection of putative mutants of Terra Maranh?£o plantain cultivar using the Ward-MLM strategy
The objective of this study was to evaluate genetic variability and select putative mutants of Terra Maranhão plantain cultivar (AAB genome) subjected to gamma radiation based on agronomic data and inter simple sequence repeat molecular marker profiles using the Ward-MLM strategy. A total of 233 irradiated plants and 41 controls were assessed. The agronomic a.. Read More»
Genet. Mol. Res. 14(4): 2015.November.30.11
DOI: 10.4238/2015.November.30.11
Selection of morphoagronomic descriptors for the characterization of accessions of cassava of the Eastern Brazilian Amazon
The aim of this study was to select morphoagronomic descriptors to characterize cassava accessions representative of Eastern Brazilian Amazonia. It was characterized 262 accessions using 21 qualitative descriptors. The multiple-correspondence analysis (MCA) technique was applied using the criteria: contribution of the descriptor in the last factorial axis of analysi.. Read More»
Genet. Mol. Res. 16(2): gmr16029595
DOI: 10.4238/gmr16029595
Genetic variability in banana diploids and nonparametric statistics of fragments associated with natural fruit finger drop
Natural fruit finger drop in bananas is one of the major concerns of producers as well as consumers. The aim of this study was to estimate the genetic diversity among 15 diploid bananas with different levels of resistance to finger drop (RFD) using SSR and ISSR (inter-simple sequence repeat) markers, and assess the possibility of association of bands with RFD variab.. Read More»
Genet. Mol. Res. 16(3): gmr16039554
DOI: 10.4238/gmr16039554
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