Abstract:
:Peanut (Arachis hypogaea) is the fifth most produced oil crop worldwide. Besides lack of water, fungal diseases are the most limiting factors for the crop. Several species of Arachis are resistant to certain pests and diseases. This study aimed to successfully cross the A-genome with B-K-A genome wild species previously selected for fungal disease resistance, but that are still untested. We also aimed to polyplodize the amphihaploid chromosomes; cross the synthetic amphidiploids and A. hypogaea to introgress disease resistance genes into the cultivated peanut; and analyze pollen viability and morphological descriptors for all progenies and their parents. We selected 12 A-genome accessions as male parents and three B-genome species, one K-genome species, and one A-genome species as female parents. Of the 26 distinct cross combinations, 13 different interspecific AB-genome and three AA-genome hybrids were obtained. These sterile hybrids were polyploidized and five combinations produced tetraploid flowers. Next, 16 combinations were crossed between A. hypogaea and the synthetic amphidiploids, resulting in 11 different hybrid combinations. Our results confirm that it is possible to introgress resistance genes from wild species into the peanut using artificial hybridization, and that more species than previously reported can be used, thus enhancing the genetic variability in peanut genetic improvement programs.
journal_name
Genet Mol Bioljournal_title
Genetics and molecular biologyauthors
Fávero AP,Dos Santos RF,Simpson CE,Valls JF,Vello NAdoi
10.1590/S1415-475738320140376subject
Has Abstractpub_date
2015-07-01 00:00:00pages
353-65issue
3eissn
1415-4757issn
1678-4685journal_volume
38pub_type
杂志文章abstract::More than 90% of birds are socially monogamous, although genetic studies indicate that many are often not sexually monogamous. In the present study, DNA fingerprinting was used to estimate the genetic relationships between nestlings belonging to the same broods to evaluate the mating system in the socially monogamous ...
journal_title:Genetics and molecular biology
pub_type: 杂志文章
doi:10.1590/S1415-47572010005000112
更新日期:2011-01-01 00:00:00
abstract::This study shows that sampling maternal DNA from hatched and abandoned eggshells is a viable noninvasive strategy for studying the genetics of rare or endangered tropical birds, as exemplified here by the Brazilian Merganser (Mergus octosetaceus). Eighteen microsatellites were isolated from enriched libraries and nine...
journal_title:Genetics and molecular biology
pub_type: 杂志文章
doi:10.1590/1678-4685-GMB-2016-0297
更新日期:2017-10-01 00:00:00
abstract::The population of India harbors one of the world's most highly diverse gene pools, owing to the influx of successive waves of immigrants over regular periods in time. Several phylogenetic studies involving mitochondrial DNA and Y chromosomal variation have demonstrated Europeans to have been the first settlers in Indi...
journal_title:Genetics and molecular biology
pub_type: 杂志文章
doi:10.1590/s1415-47572011005000003
更新日期:2011-04-01 00:00:00
abstract::Tandem repeats (microsatellites or SSRs) are molecular markers with great potential for plant genetic studies. Modern strategies include the transfer of these markers among widely studied and orphan species. In silico analyses allow for studying distribution patterns of microsatellites and predicting which motifs woul...
journal_title:Genetics and molecular biology
pub_type: 杂志文章
doi:10.1590/S1415-47572009005000091
更新日期:2009-10-01 00:00:00
abstract::Cannabinoids, flavonoids, and stilbenoids have been identified in the annual dioecious plant Cannabis sativa L. Of these, the cannabinoids are the best known group of this plant's natural products. Polyketide synthases (PKSs) are responsible for the biosynthesis of diverse secondary metabolites, including flavonoids a...
journal_title:Genetics and molecular biology
pub_type: 杂志文章
doi:10.1590/S1415-47572010005000088
更新日期:2010-10-01 00:00:00
abstract::SPLs are plant-specific transcription factors that play important regulatory roles in plant growth and development. Systematic analysis of the SPL family has been performed in numerous plants, such as Arabidopsis, rice, and Populus. However, no comparative analysis has been performed across different species to examin...
journal_title:Genetics and molecular biology
pub_type: 杂志文章
doi:10.1590/1678-4685-GMB-2017-0144
更新日期:2019-04-01 00:00:00
abstract::In this work we describe the establishment of mesenchymal stem cells (MSCs) derived from embryonic stem cells (ESCs) and the role of bFGF in adipocyte differentiation. The totipotency of ESCs and MSCs was assessed by immunofluorescence staining and RT-PCR of totipotency factors. MSCs were successfully used to induce o...
journal_title:Genetics and molecular biology
pub_type: 杂志文章
doi:10.1590/s1415-47572014000100019
更新日期:2014-03-01 00:00:00
abstract::Ample evidence suggests that cancer is triggered by mutagenic damage and diets or supplements capable of reducing such incidences can be related to the prevention of neoplasy development or to an improvement in life quality of patients who undergo chemotherapy. This research aimed to evaluate the antimutagenic and ant...
journal_title:Genetics and molecular biology
pub_type: 杂志文章
doi:10.1590/S1415-47572013005000028
更新日期:2013-09-01 00:00:00
abstract::The genus Phanaeus is included in the tribe Phanaeini, one of the most diverse tribes within the subfamily Scarabaeinae in terms of chromosomal characteristics. However, so far the species of this genus were not studied with differential cytogenetic techniques, limiting any inference of the probable mechanisms respons...
journal_title:Genetics and molecular biology
pub_type: 杂志文章
doi:10.1590/S1415-47572013005000031
更新日期:2013-09-01 00:00:00
abstract::Screening of mutations that cause β-thalassaemia in the Bangladeshi population led to the identification of a patient with a combination of two rare mutations, Hb Monroe and HBB: -92 C > G. The β-thalassaemia major male individual was transfusion-dependent and had an atypical β-globin gene cluster haplotype. Of the tw...
journal_title:Genetics and molecular biology
pub_type: 杂志文章
doi:10.1590/S1415-47572011005000026
更新日期:2011-07-01 00:00:00
abstract::Switchgrass (Panicum virgatum L.; family Poaceae) is a warm-season C4 perennial grass. Tillering plays an important role in determining the morphology of aboveground parts and the final biomass yield of switchgrass. Auxin distribution in plants can affect a variety of important growth and developmental processes, incl...
journal_title:Genetics and molecular biology
pub_type: 杂志文章
doi:10.1590/1678-4685-GMB-2014-0300
更新日期:2016-03-01 00:00:00
abstract::Post-translational modification of proteins by ADP-ribosylation, catalysed by poly (ADP-ribose) polymerases (PARPs) using NAD+ as a substrate, plays central roles in DNA damage signalling and repair, modulates a range of cellular signalling cascades and initiates programmed cell death by parthanatos. Here, we present ...
journal_title:Genetics and molecular biology
pub_type: 杂志文章
doi:10.1590/1678-4685-GMB-2019-0075
更新日期:2019-12-13 00:00:00
abstract::The applicability of mitochondrial nad6 sequences to studies of DNA and population variability in Lepidoptera was tested in four species of economically important moths and one of wild butterflies. The genetic information so obtained was compared to that of cox1 sequences for two species of Lepidoptera. nad6 primers a...
journal_title:Genetics and molecular biology
pub_type: 杂志文章
doi:10.1590/S1415-47572011000400028
更新日期:2011-10-01 00:00:00
abstract::A detailed study of putative recombination events and their evolution frequency in the whole genome of the currently known members of the family Tombusviridae, comprising 79 accessions retrieved from the international databases, was carried out by using the RECCO and RDP version 3.31β algorithms. The first program all...
journal_title:Genetics and molecular biology
pub_type: 杂志文章
doi:10.1590/S1415-47572011005000046
更新日期:2011-10-01 00:00:00
abstract::Oryza sativa, the common cultivated rice, is one of the most important crops for human consumption, but production is increasingly threatened by abiotic stresses. Although many efforts have resulted in breeding rice cultivars that are relatively tolerant to their local environments, climate changes and population incr...
journal_title:Genetics and molecular biology
pub_type: 杂志文章
doi:10.1590/1678-4685-GMB-2016-0093
更新日期:2017-01-01 00:00:00
abstract::Blood methylated cell-free DNA (cfDNA) as a minimally invasive cancer biomarker has great importance in cancer management. Guanylate binding protein 2 (GBP2) has been considered as a possible controlling factor in tumor development. GBP2 gene expression and its promoter methylation status in both plasma cfDNA and tumo...
journal_title:Genetics and molecular biology
pub_type: 杂志文章
doi:10.1590/1678-4685-GMB-2019-0230
更新日期:2020-11-17 00:00:00
abstract::The potential effect of electromagnetic fields (EMFs) emitted from video display terminals (VDTs) to elicit biological response is a major concern for the public. The software professionals are subjected to cumulative EMFs in their occupational environments. This study was undertaken to evaluate DNA damage and inciden...
journal_title:Genetics and molecular biology
pub_type: 杂志文章
doi:10.1590/S1415-47572010005000010
更新日期:2010-01-01 00:00:00
abstract::Molecular genetic research relies heavily on the ability to detect polymorphisms in DNA. Single nucleotide polymorphisms (SNPs) are the most frequent form of DNA variation in the genome. In combination with a PCR assay, the corresponding SNP can be analyzed as a derived cleaved amplified polymorphic sequence (dCAPS) m...
journal_title:Genetics and molecular biology
pub_type: 杂志文章
doi:10.1590/S1415-47572009005000047
更新日期:2009-07-01 00:00:00
abstract::Sickle cell anemia is a genetic disease with high prevalence in people of African descent. There are five typical haplotypes associated with this disease and the haplotypes associated with the beta-globin gene cluster have been used to establish the origin of African-descendant people in America. In this work, we dete...
journal_title:Genetics and molecular biology
pub_type: 杂志文章
doi:10.1590/S1415-47572013000400005
更新日期:2013-12-01 00:00:00
abstract::Despite their ecological and economical importance, fishes of the family Ariidae are still genetically and cytogenetically poorly studied. Among the 133 known species of ariids, only eight have been karyotyped. Cytogenetic analyses performed on Genidens barbus and Sciades herzbergii revealed that both species have 2n ...
journal_title:Genetics and molecular biology
pub_type: 杂志文章
doi:10.1590/S1415-47572010005000038
更新日期:2010-04-01 00:00:00
abstract::Tsetse flies are responsible for the transmission of Trypanossoma sp. to vertebrate animals in Africa causing huge health issues and economic loss. The availability of the genome sequence of Glossina morsitans enabled the discovery of several genes related to medically important phenotypes and novel physiological feat...
journal_title:Genetics and molecular biology
pub_type: 杂志文章
doi:10.1590/1678-4685-GMB-2018-0311
更新日期:2020-06-10 00:00:00
abstract::Now a days, an important and interesting alternative in the control of tick-infestation in cattle is to select resistant animals, and identify the respective quantitative trait loci (QTLs) and DNA markers, for posterior use in breeding programs. The number of ticks/animal is characterized as a discrete-counting trait,...
journal_title:Genetics and molecular biology
pub_type: 杂志文章
doi:10.1590/S1415-47572011005000049
更新日期:2011-10-01 00:00:00
abstract::Breast cancer (BC) is the most prevalent type worldwide, besides being one of the most common causes of death among women. It has been suggested that sporadic BC is most likely caused by low-penetrance genes, including those involved in DNA repair mechanisms. Furthermore, the accumulation of DNA damage may contribute ...
journal_title:Genetics and molecular biology
pub_type: 杂志文章
doi:10.1590/S1415-47572010005000082
更新日期:2010-10-01 00:00:00
abstract::Despite the richness of species in the Hirudinidae family, little is known about the genome organization of swallows. The Progne tapera species presents genetic and morphological difference when compared to other members of the same genus. Hence, the aims of this study were to analyze the chromosomal evolution of thre...
journal_title:Genetics and molecular biology
pub_type: 杂志文章
doi:10.1590/1678-4685-GMB-2019-0232
更新日期:2020-03-09 00:00:00
abstract::The goal of this research was to investigate the linkage disequilibrium between rs9263726 and HLA-B*58:01 in different Chinese ethnic groups (Han, Tibet, and Hui) and to study the feasibility of rs9263726 replacing HLA-B*58:01 as an efficient indicator of potential allopurinol hypersensitivity syndrome. In this study,...
journal_title:Genetics and molecular biology
pub_type: 杂志文章
doi:10.1590/1678-4685-GMB-2017-0258
更新日期:2018-07-01 00:00:00
abstract::The common everyday use of medicinal plants is an ancient, and still very widespread practice, whereby the need for studies on their possible toxicity and mutagenic properties. The species Coccoloba mollis has been much used in phytotherapy, mainly in cases involving loss of memory and stress. In order to investigate ...
journal_title:Genetics and molecular biology
pub_type: 杂志文章
doi:10.1590/S1415-47572010005000062
更新日期:2010-07-01 00:00:00
abstract::Machado-Joseph disease (MJD) is an autosomal dominant, late-onset neurological disorder and the most common form of spinocerebellar ataxia (SCA) worldwide. Diagnostic genetic testing is available to detect the disease-causing mutation by direct sizing of the CAG repeat tract in the ataxin 3 gene. Presymptomatic testin...
journal_title:Genetics and molecular biology
pub_type: 杂志文章
doi:10.1590/s1415-47572014000200012
更新日期:2014-03-01 00:00:00
abstract::Phylogenetic species of Paracoccidioides brasiliensis complex (S1a and S1b, PS2, PS3, and PS4) and Paracoccidioides lutzii are agents of paracoccidioidomycosis, an endemic fungal disease in Latin America. P. restrepiensis (PS3 genotype) was classified as monophyletic and geographically restricted to Colombia and neigh...
journal_title:Genetics and molecular biology
pub_type: 杂志文章
doi:10.1590/1678-4685-GMB-2019-0201
更新日期:2020-05-29 00:00:00
abstract::Metachromatic leukodystrophy disorder (MLD) is an autosomal recessive and lysosomal storage disease. The disease is caused by the deficiency of the enzyme arylsulfatase A (ARSA) which is encoded by the ARSA gene. Different mutations have been reported in different populations. The present study was aimed to detect the...
journal_title:Genetics and molecular biology
pub_type: 杂志文章
doi:10.1590/1678-4685-GMB-2016-0110
更新日期:2017-10-01 00:00:00
abstract::This study evaluated the diversity of cultivable plant growth-promoting (PGP) bacteria associated with apple trees cultivated under different crop management systems and their antagonistic ability against Colletotrichum gloeosporioides. Samples of roots and rhizospheric soil from apple trees cultivated in organic and ...
journal_title:Genetics and molecular biology
pub_type: 杂志文章
doi:10.1590/s1415-47572014000400013
更新日期:2014-09-01 00:00:00