scholarly journals A study of the relationships of cultivated peanut (Arachis hypogaea) and its most closely related wild species using intron sequences and microsatellite markers

2012 ◽  
Vol 111 (1) ◽  
pp. 113-126 ◽  
Author(s):  
Márcio C. Moretzsohn ◽  
Ediene G. Gouvea ◽  
Peter W. Inglis ◽  
Soraya C. M. Leal-Bertioli ◽  
José F. M. Valls ◽  
...  
Keyword(s):  
Microsatellite Markers ◽  
Arachis Hypogaea ◽  
Wild Species ◽  
Cultivated Peanut ◽  
Related Wild Species

scholarly journals Utility of EST-derived SSR in cultivated peanut (Arachis hypogaea L.) and Arachis wild species

2009 ◽  
Vol 9 (1) ◽  
pp. 35 ◽  
Author(s):  
Xuanqiang Liang ◽  
Xiaoping Chen ◽  
Yanbin Hong ◽  
Haiyan Liu ◽  
Guiyuan Zhou ◽  
...  
Keyword(s):  
Arachis Hypogaea ◽  
Wild Species ◽  
Arachis Hypogaea L ◽  
Cultivated Peanut

scholarly journals Characterization and transferability of microsatellite markers of the cultivated peanut (Arachis hypogaea)

2007 ◽  
Vol 7 (1) ◽  
pp. 9 ◽  
Author(s):  
Marcos A Gimenes ◽  
Andrea A Hoshino ◽  
Andrea VG Barbosa ◽  
Dario A Palmieri ◽  
Catalina R Lopes
Keyword(s):  
Microsatellite Markers ◽  
Arachis Hypogaea ◽  
Cultivated Peanut

RAPD and ISSR fingerprints as useful genetic markers for analysis of genetic diversity, varietal identification, and phylogenetic relationships in peanut (Arachis hypogaea) cultivars and wild species

Genome ◽  
2001 ◽  
Vol 44 (5) ◽  
pp. 763-772 ◽  
Author(s):  
S N Raina ◽  
V Rani ◽  
T Kojima ◽  
Y Ogihara ◽  
K P Singh ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Genetic Markers ◽  
Arachis Hypogaea ◽  
Wild Species ◽  
Phylogenetic Relationships ◽  
Varietal Identification ◽  
Ssr Primers ◽  
Cultivated Peanut ◽  
Wild Progenitors ◽  
Botanical Varieties

Twenty-one random and 29 SSR primers were used to assess genetic variation and interrelationships among subspecies and botanical varieties of cultivated peanut, Arachis hypogaea (2n = 4x = 40), and phylogenetic relationships among cultivated peanut and wild species of the genus Arachis. In contrast with the previous generalization that peanut accessions lack genetic variation, both random and SSR primers revealed 42.7 and 54.4% polymorphism, respectively, among 220 and 124 genetic loci amplified from 13 accessions. Moreover, the dendrograms based on RAPD, ISSR, and RAPD + ISSR data precisely organized the five botanical varieties of the two subspecies into five clusters. One SSR primer was identified that could distinguish all the accessions analysed within a variety. Although the polymorphic index content varied from 0.1 to 0.5 for both ISSR and RAPD markers, primer index values were substantially higher for RAPD primers (0.35–4.65) than for SSR primers (0.35–1.73). It was possible to identify accessions, particularly those of divergent origins, by RAPD and (or) ISSR fingerprints. Based on these results, marker-based genetic improvement in A. hypogaea appears possible. None of the 486 RAPD and 330 ISSR amplification products were found to be commonly shared among 13 species of section Arachis and one species each of sections Heteranthae, Rhizomatosae, and Procumbentes. Dendrograms constructed from RAPD, ISSR, and RAPD + ISSR data showed overall similar topologies. They could be resolved into four groups corresponding to the species grouped in four taxonomic sections. The present results strongly support the view that Arachis monticola (2n = 4x = 40) and A. hypogaea are very closely related, and indicate that A. villosa and A. ipaensis are the diploid wild progenitors of these tetraploid species.Key words: Arachis hypogaea, genetic markers, varietal identification, DNA polymorphism, Arachis species.

scholarly journals A Morphological Appraisal of Wild Species in Section Arachis of Peanuts1

1990 ◽  
Vol 17 (2) ◽  
pp. 117-122 ◽  
Author(s):  
H. T. Stalker
Keyword(s):  
Arachis Hypogaea ◽  
Wild Species ◽  
Numerical Taxonomy ◽  
Diploid Species ◽  
Large Collection ◽  
Numerical Techniques ◽  
Arachis Hypogaea L ◽  
Cultivated Peanut ◽  
Systematic Relationships ◽  
Species Descriptions

Abstract The cultivated peanut, Arachis hypogaea L., is a member of section Arachis nom. nud. along with its tetraploid progenitor, A. monticola Krap. et Rig., four validly described diploid species, eight diploid species whose names have never been validly published, and a large collection of taxa discovered since 1975. Systematic relationships and possible species circumscriptors are assessed in section Arachis by means of numerical taxonomy. Seventy-three accessions were grown in the field and three randomly selected specimens of each accession were evaluated. Numerical techniques in the form of cluster and principal components analyses were used on 56 characters, including 20 reproductive, 30 vegetative, and six created variables. Most variation was observed for leaflet size and shape, followed by branching habits and flower size. Although grouping of accessions did not always conform to expectations based on published species descriptions, general relationships among taxa are evident from the analyses. A total of 20 to 25 species will likely exist in section Arachis based on the observed variability.

scholarly journals Genetic differentiation and hybrid identification using microsatellite markers in closely related wild species

AoB Plants ◽  
2015 ◽  
Vol 7 ◽  
pp. plv084 ◽  
Author(s):  
Caroline Turchetto ◽  
Ana Lúcia A. Segatto ◽  
Júlia Beduschi ◽  
Sandro L. Bonatto ◽  
Loreta B. Freitas
Keyword(s):  
Genetic Differentiation ◽  
Microsatellite Markers ◽  
Wild Species ◽  
Hybrid Identification ◽  
Related Wild Species

scholarly journals ValSten: a new wild species derived allotetraploid for increasing genetic diversity of the peanut crop (Arachis hypogaea L.)

2021 ◽  
Author(s):  
Dongying Gao ◽  
Ana C. G. Araujo ◽  
Eliza F. M. B. Nascimento ◽  
M. Carolina Chavarro ◽  
Han Xia ◽  
...  
Keyword(s):  
High Resistance ◽  
Wild Species ◽  
Chromosome Doubling ◽  
Crop Improvement ◽  
Snp Array ◽  
Great Majority ◽  
Morphological Variations ◽  
Peanut Crop ◽  
Cultivated Peanut ◽  
Wild Peanut

AbstractIntrogression of desirable traits from wild relatives plays an important role in crop improvement, as wild species have important characters such as high resistance to pests and pathogens. However, use of wild peanut relatives is challenging because almost all wild species are diploid and sexually incompatible with cultivated peanut, which is tetraploid (AABB genome type; 2n = 4x = 40). To overcome the ploidy barrier, we used 2 wild species to make a tetraploid with the same allotetraploid genome composition as cultivated peanut. Crosses were made between 2 diploid wild species, Arachis valida Krapov. and W.C. Greg. (BB genome; 2n = 2x = 20) and Arachis stenosperma Krapov. and W.C. Greg. (AA genome; 2n = 2x = 20). Cuttings from the diploid F1 AB hybrid were treated with colchicine to induce chromosome doubling thus generating an induced allotetraploid. Chromosome counts confirmed polyploidy (AABB genome; 2n = 4x = 40). We named the new allotetraploid ValSten. Plants had well-developed fertile pollen, produced abundant seed and were sexually compatible with cultivated peanut. ValSten exhibits the same high resistance to early and late leaf spot and rust as its diploid parents. Notably, we observed morphological variations, including flower width and branch angles in the earliest generation (S0) of allotetraploids. A SNP array was used to genotype 47 S0 allotetraploids. The great majority of markers showed the additive allelic state from both parents (AABB). However, some loci were AAAA or BBBB, indicating homeologous recombination. ValSten provides a new, vigorous, highly fertile, disease resistant germplasm for peanut research and improvement.

scholarly journals Diversity in Nutrient Content and Consumer Preferences of Sensory Attributes of Peanut (Arachis hypogaea L.) Varieties in Ugandan Agroecosystems

2021 ◽  
Vol 13 (5) ◽  
pp. 2658
Author(s):  
Rose Nankya ◽  
John W. Mulumba ◽  
Hannington Lwandasa ◽  
Moses Matovu ◽  
Brian Isabirye ◽  
...  
Keyword(s):  
Arachis Hypogaea ◽  
Consumer Preferences ◽  
Consumer Preference ◽  
Nutrient Content ◽  
Intraspecific Diversity ◽  
Laboratory Evaluation ◽  
Organoleptic Characteristics ◽  
Arachis Hypogaea L ◽  
Cultivated Peanut ◽  
Nutrient Amounts

The cultivated peanut (Arachis hypogaea L.) is one of the most widely consumed legumes globally due to its nutrient content, taste, and affordability. Nutrient composition and consumer preference were determined for twenty local farmer (landrace) and commercial peanut varieties grown in the Nakaseke and Nakasongola districts of the central wooded savanna of Uganda through sensory and laboratory evaluation. Significant differences in nutrient content (p < 0.05) among peanut varieties were found within and across sites. A significant relationship between nutrient content and consumer preference for varieties within and across sites was also realized (Wilk’s lambda = 0.05, p = 0.00). The differences in nutrient content influenced key organoleptic characteristics, including taste, crunchiness, appearance, and soup aroma, which contributed to why consumers may prefer certain varieties to others. Gender differences in variety selection were significantly related to consumer preference for the crunchiness of roasted peanut varieties (F = 5.7, p = 0.016). The results imply that selecting different varieties of peanuts enables consumers to receive different nutrient amounts, while experiencing variety uniqueness. The promotion of peanut intraspecific diversity is crucial for improved nutrition, organoleptic appreciation and the livelihood of those engaged in peanut value chains, especially for the actors who specialize in different peanut products. The conservation of peanut diversity will ensure that the present and future generations benefit from the nutritional content and organoleptic enjoyment that is linked to unique peanut varieties.

Sign in / Sign up

Export Citation Format

Share Document