scholarly journals Involvement of Root Hair during <i>Rhizobial</i> Invasion in Cultivated Peanut (<i>Arachis hypogaea</i> L.)

2018 ◽  
Vol 09 (08) ◽  
pp. 1646-1659
Author(s):  
James Maku ◽  
Liping Wang ◽  
Fengxia Liu ◽  
Lixia Liu ◽  
Karen Kelley ◽  
...  
Keyword(s):  
Arachis Hypogaea ◽  
Root Hair ◽  
Cultivated Peanut

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.

scholarly journals Comparative Transcriptome Analysis Reveals Molecular Defensive Mechanism of Arachis hypogaea in Response to Salt Stress

2020 ◽  
Vol 2020 ◽  
pp. 1-13 ◽  
Author(s):  
Hao Zhang ◽  
Xiaobo Zhao ◽  
Quanxi Sun ◽  
Caixia Yan ◽  
Juan Wang ◽  
...  
Keyword(s):  
Salt Stress ◽  
Salt Tolerance ◽  
Arachis Hypogaea ◽  
Genetic Manipulation ◽  
Plant Production ◽  
Cell Periphery ◽  
Oxidoreductase Activity ◽  
The World ◽  
Cultivated Peanut ◽  
Young Leaves

Abiotic stresses comprise all nonliving factors, such as soil salinity, drought, extreme temperatures, and metal toxicity, posing a serious threat to agriculture and affecting the plant production around the world. Peanut (Arachis hypogaea L.) is one of the most important crops for vegetable oil, proteins, minerals, and vitamins in the world. Therefore, it is of importance to understand the molecular mechanism of peanut against salt stress. Six transcriptome sequencing libraries including 24-hour salt treatments and control samples were constructed from the young leaves of peanut. A comprehensive analysis between two groups detected 3,425 differentially expressed genes (DEGs) including 2,013 upregulated genes and 1,412 downregulated genes. Of these DEGs, 141 transcription factors (TFs) mainly consisting of MYB, AP2/ERF, WRKY, bHLH, and HSF were identified in response to salinity stress. Further, GO categories of the DEGs highly related to regulation of cell growth, cell periphery, sustained external encapsulating structure, cell wall organization or biogenesis, antioxidant activity, and peroxidase activity were significantly enriched for upregulated DEGs. The function of downregulated DEGs was mainly enriched in regulation of metabolic processes, oxidoreductase activity, and catalytic activity. Fourteen DEGs with response to salt tolerance were validated by real-time PCR. Taken together, the identification of DEGs’ response to salt tolerance of cultivated peanut will provide a solid foundation for improving salt-tolerant peanut genetic manipulation in the future.

scholarly journals Recombinants from the crosses between amphidiploid and cultivated peanut (Arachis hypogaea) for pest-resistance breeding programs

PLoS ONE ◽  
2017 ◽  
Vol 12 (4) ◽  
pp. e0175940 ◽  
Author(s):  
Ailton Ferreira de Paula ◽  
Naiana Barbosa Dinato ◽  
Bianca Baccili Zanotto Vigna ◽  
Alessandra Pereira Fávero
Keyword(s):  
Arachis Hypogaea ◽  
Pest Resistance ◽  
Resistance Breeding ◽  
Breeding Programs ◽  
Cultivated Peanut

Colonization and invasion of peanut (Arachis hypogaea L.) roots by gusA-marked Bradyrhizobium sp.

2001 ◽  
Vol 79 (6) ◽  
pp. 733-738 ◽  
Author(s):  
Eiji Uheda ◽  
Hiroyuki Daimon ◽  
Fumiki Yoshizako
Keyword(s):  
Cell Wall ◽  
Arachis Hypogaea ◽  
Hair Cells ◽  
Root Hair ◽  
Root Nodules ◽  
Lateral Roots ◽  
Middle Lamella ◽  
Root Surface ◽  
Arachis Hypogaea L ◽  
Root Hair Cells

Tufted rosettes of long root hairs occur in axils of young lateral roots of peanut (Arachis hypogaea L.). Analyses of serial sections of the axils of emerging lateral roots revealed multiple layers of root hair cells. The cells of the outer layer partially overlie the adjacent cells of the inner layer. When Bradyrhizobium cells with an integrated gusA gene were inoculated onto peanut roots and the roots subsequently stained with X-gluc, blue spots indicating the presence of colonies of Bradyrhizobium were observed in the axils of lateral roots. Blue spots were also observed in other areas on the root surface. Transmission electron microscopy revealed that the primary wall of the base of root hair cells has a loose construction. Upon inoculation of Bradyrhizobium, bacteria entered only between root hair cells through the middle lamella. In other areas of the root surface other than axils of lateral roots, the cells had modified walls similar to those at the base of root hair cells. However, invasion by Bradyrhizobium of the cell wall was not observed.Key words: Arachis hypogaea, gusA-marked Bradyrhizobium, cell wall, invasion, root hair cell, root nodules.

An integrated genetic linkage map of cultivated peanut (Arachis hypogaea L.) constructed from two RIL populations

2011 ◽  
Vol 124 (4) ◽  
pp. 653-664 ◽  
Author(s):  
Hongde Qin ◽  
Suping Feng ◽  
Charles Chen ◽  
Yufang Guo ◽  
Steven Knapp ◽  
...  
Keyword(s):  
Linkage Map ◽  
Arachis Hypogaea ◽  
Genetic Linkage ◽  
Genetic Linkage Map ◽  
Arachis Hypogaea L ◽  
Cultivated Peanut

scholarly journals A SSR-based composite genetic linkage map for the cultivated peanut (Arachis hypogaea L.) genome

2010 ◽  
Vol 10 (1) ◽  
pp. 17 ◽  
Author(s):  
Yanbin Hong ◽  
Xiaoping Chen ◽  
Xuanqiang Liang ◽  
Haiyan Liu ◽  
Guiyuan Zhou ◽  
...  
Keyword(s):  
Linkage Map ◽  
Arachis Hypogaea ◽  
Genetic Linkage ◽  
Genetic Linkage Map ◽  
Arachis Hypogaea L ◽  
Cultivated Peanut

scholarly journals Genetic Studies Involving Wine Testa Color in Peanut1

1997 ◽  
Vol 24 (1) ◽  
pp. 60-62 ◽  
Author(s):  
W. D. Branch
Keyword(s):  
Arachis Hypogaea ◽  
Genetic Study ◽  
Genetic Studies ◽  
Arachis Hypogaea L ◽  
True Breeding ◽  
Cultivated Peanut ◽  
Testa Color ◽  
New Cultivars

Abstract A better understanding of peanut (Arachis hypogaea L.) testa color genetics would be helpful to breeders in developing new cultivars to meet U.S. market acceptability. Wine is one of the least understood of all basic testa colors in peanut. The objective of this genetic study was to gain further knowledge on the inheritance of wine testa color and possible allelic interactions. Crosses were made using two true-breeding wine testa color genotypes (Wine-Frr and PI 264549) as females with the tan testa and recessive red testa male parents Krinkle-Leaf and Makulu Red, respectively. F1, F2, and F3 data suggest no difference between the two wine testa color genotypes. Inheritance of wine testa color was found to be recessive with a one gene difference between wine and the tan testa color of Krinkle-Leaf, and with two gene differences between wine and the recessive red testa color of Makulu Red. Inheritance of wine seems to closely parallel that for recessive red testa color in the cultivated peanut.

scholarly journals QTL mapping and QTL × environment interaction analysis of multi-seed pod in cultivated peanut (Arachis hypogaea L.)

2019 ◽  
Vol 7 (2) ◽  
pp. 249-260 ◽  
Author(s):  
Liang Wang ◽  
Xinlei Yang ◽  
Shunli Cui ◽  
Guojun Mu ◽  
Xingming Sun ◽  
...  
Keyword(s):  
Qtl Mapping ◽  
Arachis Hypogaea ◽  
Interaction Analysis ◽  
Arachis Hypogaea L ◽  
Cultivated Peanut
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