scholarly journals Improvement and Selection of Honeybees Assisted by Molecular Markers

10.5772/62426 ◽  
2016 ◽  
Author(s):  
Maria Claudia Colla Ruvolo-Takasusuki ◽  
Arielen Patricia Balista Casagrande Pozza ◽  
Ana Paula Nunes Zago Oliveira ◽  
Rejane Stubs Parpinelli ◽  
Fabiana Martins Costa-Maia ◽  
...  
Keyword(s):  
Molecular Markers ◽  
Selection Of

scholarly journals  Molecular markers: their use in tree improvement

2012 ◽  
Vol 58 (No. 3) ◽  
pp. 137-144 ◽  
Author(s):  
R. Mahajan ◽  
P. Gupta
Keyword(s):  
Molecular Markers ◽  
Tree Species ◽  
Cell Biology ◽  
Genetic Linkage ◽  
Morphological Characteristics ◽  
Phenotypic Selection ◽  
Tree Improvement ◽  
Linkage Maps ◽  
Genetic Linkage Maps ◽  
Selection Of

Earlier breeders used phenotypic selection based on morphological characteristics to improve tree varieties. These selections often take many cycles of breeding and backcrossing in order to place desired characteristics. But today the knowledge has paved the way for a much deeper understanding of the mechanics of cell biology and the hereditary process itself. Breeders are presented with numerous possibilities of altering the behaviour of existing varieties. Linkage between molecular markers can be translated to genetic linkage maps, which have become an important tool in plant genetics. They may choose to use marker-assisted approaches in order to facilitate the selection of favourable combinations of genes that occur naturally within a tree species.  

Efficacy, Safety, and Selection of Molecular Markers of Drug Resistance by Two ACTs in Mali

2008 ◽  
Vol 78 (3) ◽  
pp. 455-461 ◽  
Author(s):  
Abdoulaye A. Djimdé ◽  
Bakary Fofana ◽  
Souleymane Dama ◽  
Bakary Sidibe ◽  
Issaka Sagara ◽  
...  
Keyword(s):  
Drug Resistance ◽  
Molecular Markers ◽  
Selection Of

scholarly journals Identification of Rubisco rbcL and rbcS in Camellia oleifera and their potential as molecular markers for selection of high tea oil cultivars

2015 ◽  
Vol 06 ◽  
Author(s):  
Yongzhong Chen ◽  
Baoming Wang ◽  
Jianjun Chen ◽  
Xiangnan Wang ◽  
Rui Wang ◽  
...  
Keyword(s):  
Molecular Markers ◽  
Camellia Oleifera ◽  
Selection Of

DEVELOPING MOLECULAR MARKERS FOR MARKER ASSISTED SELECTION OF FIRE BLIGHT RESISTANT APPLE SEEDLINGS

2007 ◽  
pp. 117-122 ◽  
Author(s):  
A. Peil ◽  
M.-V. Hanke ◽  
H. Flachowsky ◽  
K. Richter ◽  
T. Garcia ◽  
...  
Keyword(s):  
Molecular Markers ◽  
Marker Assisted Selection ◽  
Fire Blight ◽  
Selection Of

APPLYING A DEFINED SET OF MOLECULAR MARKERS TO IMPROVE SELECTION OF RESISTANT GRAPEVINE ACCESSIONS

2015 ◽  
pp. 73-78 ◽  
Author(s):  
E. Zini ◽  
M. Raffeiner ◽  
G. Di Gaspero ◽  
R. Eibach ◽  
M.S. Grando ◽  
...  
Keyword(s):  
Molecular Markers ◽  
Selection Of

scholarly journals Relationship between Monokaryotic Growth Rate and Mating Type in the Edible Basidiomycete Pleurotus ostreatus

2001 ◽  
Vol 67 (8) ◽  
pp. 3385-3390 ◽  
Author(s):  
Luis M. Larraya ◽  
Gúmer Pérez ◽  
Iñaki Iribarren ◽  
Juan A. Blanco ◽  
Mikel Alfonso ◽  
...  
Keyword(s):  
Growth Rate ◽  
Molecular Markers ◽  
Mating Type ◽  
Pleurotus Ostreatus ◽  
Genetic System ◽  
Hyphal Fusion ◽  
Edible Fungus ◽  
Genomic Regions ◽  
Industrial Yield ◽  
Selection Of

ABSTRACT The edible fungus Pleurotus ostreatus (oyster mushroom) is an industrially produced heterothallic homobasidiomycete whose mating is controlled by a bifactorial tetrapolar genetic system. Two mating loci (matA and matB) control different steps of hyphal fusion, nuclear migration, and nuclear sorting during the onset and progress of the dikaryotic growth. Previous studies have shown that the segregation of the alleles present at thematB locus differs from that expected for a single locus because (i) new nonparental B alleles appeared in the progeny and (ii) there was a distortion in the segregation of the genomic regions close to this mating locus. In this study, we pursued these observations by using a genetic approach based on the identification of molecular markers linked to the matBlocus that allowed us to dissect it into two genetically linked subunits (matBα and matBβ) and to correlate the presence of specific matBα and matAalleles with differences in monokaryotic growth rate. The availability of these molecular markers and the mating type dependence of growth rate in monokaryons can be helpful for marker-assisted selection of fast-growing monokaryons to be used in the construction of dikaryons able to colonize the substrate faster than the competitors responsible for reductions in the industrial yield of this fungus.

scholarly journals Selection of ISSR Primers to Study the Genetic Diversity of Myrciaria floribunda O. Berg

2020 ◽  
pp. 23-28
Author(s):  
Luiz Sergio Costa Duarte Filho ◽  
Danielson Ramos Ribeiro ◽  
Allison Vieira da Silva
Keyword(s):  
Genetic Diversity ◽  
Molecular Markers ◽  
South America ◽  
Central America ◽  
Dna Extraction ◽  
Endemic Species ◽  
Germplasm Bank ◽  
Slow Growing ◽  
Selection Of ◽  
Issr Primers

The species Myrciaria floridunda O. Berg, popularly known as cambuí, belongs to the Myrtaceae family. Cambui is a native, non-endemic species that occur in diverse environments in Central America and South America. They are slow-growing plants with a shrub or sub-shrub habit. The fruits, the product of interest of the species, are small, spherical berries orange or red in colorturning to wine colorwhen they are ripe. The exploitation of the species is still mostly extractivist, carried out by traditional local families who, in times of fruiting of the species, leverage their income by selling fruits at fairs. The fruits can be eaten fresh, in the form of jellies, liquor or wine. To study the genetic diversity of the species using ISSR-type molecular markers, it is necessary to first isolate DNA in sufficient quality and quantity. Here, leaves for DNA extraction were collected from the active germplasm bank of the Federal University of Alagoas, Brazil. The DNA of the species was extracted using CTAB detergent methodology with modifications adapted to the species. Twelve ISSR primers were tested on DNA from two cambui genotypes. Of the twelve primers, eight were selected due to their polymorphism index above 50%, namely: UFAL-2, UFAL-3, UFAL-5, UFAL-6, UFAL-7, UFAL-8, UFAL-9 and UFAL-10.

scholarly journals Selection of powdery mildew resistant and susceptible grapevine genotypes with molecular markers

2007 ◽  
pp. 100-104
Author(s):  
Stella Molnár ◽  
Zsuzsanna Galbács ◽  
Gábor Halász ◽  
Sarolta Hoffmann ◽  
Anikó Veres ◽  
...  
Keyword(s):  
Molecular Markers ◽  
Powdery Mildew ◽  
Marker Assisted Selection ◽  
Powdery Mildew Resistance ◽  
Resistance Breeding ◽  
Breeding Programs ◽  
Pcr Rflp ◽  
Muscadinia Rotundifolia ◽  
Selection Of ◽  
Grape Breeding

Incorporation of competitive quality and resistance against the most important fungal diseases (powdery and downy mildew) in a cultivar is one of the most important aims of grapevine breeding. In the 20th century, the most advanced results in grapevine resistance breeding were achieved by French researchers. They used resistant cultivars in more than 30% of their growing areas. In these varieties, North American wild Vitisspecies were the resistance gene sources. The discovery of immunity-like resistance of Muscadinia rotundifolia opened new perspectives in resistance breeding. M. rotundifolia harbours a dominant powdery mildew gene, providing resistance in highquality cultivars after back-crosses with V. vinifera varieties. M. rotundifolia has been involved in the Hungarian grape breeding programs since 1996, thanks to a French-Hungarian variety exchange. In addition to traditional selection methods, application of MAS (Marker Assisted Selection) based on various types ofmolecular markers, can provide additional tools for these efforts. Run1 locus, responsible for powdery mildew resistance, was identified in Muscadinia rotundifolia. Molecular markers closely linked to this locus are very significant in screening progenies deriving from M. rotundifolia and V. vinifera crosses, making possible the discrimination between resistant and susceptible genotypes at DNA level. In our analyses BC5 progeny of {(M. rotundifola×V. vinifera) BC4}×Cardinal (V. vinifera) tested for powdery symptoms were analysed with PCR-RFLP (GLP1- 12P1P3) and microsatellite markers (VMC4f3.1, VMC8g9). Our results proved the applicability of the linked markers and reliability of marker assisted selection.

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