Beauregard’ Sweet Potato

Rolston, L. H.; Clark, Christopher A.; Cannon, James M.; Randle, William M.; Riley, Edward G.; Wilson, Paul W.; Robbins, Mary Louise

doi:10.21273/hortsci.22.6.1338

Cited by 59 publications

(9 citation statements)

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“…All experiments used cuttings that were 25–30 cm long, with five to six fully opened leaves, approximately 5 mm diameter at the basal cut (cut end) and with uniform distribution of nodes. Two commercially grown cultivars were used: Bayou Belle (LaBonte et al., 2013) and Beauregard (Rolston et al., 1987). Currently, there are no susceptible or resistant standards designated in the United States for black rot in sweet potato.…”

Section: Methodsmentioning

confidence: 99%

Ceratocystis fimbriata alters root system architecture and causes symptom development only in detached storage roots in Bayou Belle and Beauregard sweet potato

Villordon,

DeRobertis,

Clark

2023

Plant Pathology

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Little is known about how the sweet potato (Ipomoea batatas) root system responds to Ceratocystis fimbriata in the growth substrate. Understanding whether the fungus affects the root system before harvest of storage roots (SR) could guide timing of management efforts. Cuttings of cultivars Bayou Belle and Beauregard, both previously considered susceptible to black rot, were in unamended or infested sand. At the onset of SR formation, effects on first‐ and second‐order lateral root (LR) length and number among and within treatments, cultivars and replicate experiments were recorded. First‐order LR length in inoculated Bayou Belle plants was 31% greater than in inoculated plants of cultivar Beauregard in Expt 1, but there were no differences in Expt 2. Second‐order LR length varied among, and within, cultivars, inoculum treatments and experiments in Expts 1 and 2. At 49 days after planting in Expt 1, only inoculated plants had necrotic lesions on stems in both cultivars, with more than twice as many recorded on Bayou Belle than Beauregard. SR had no lesions at harvest. Detached SR originating from inoculated treatments and stored in sampling bags for 25 days developed black rot lesions at either end of the SR (45% and 31% of total in Expt 1 and Expt 2, respectively) or elsewhere, including those centred on LR emergence sites or lenticels (55% and 69%, respectively). Exposing developing plants to inoculation may reveal differences in SR susceptibility not found when harvested SR are wounded and inoculated.

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Section: Methodsmentioning

confidence: 99%

Ceratocystis fimbriata alters root system architecture and causes symptom development only in detached storage roots in Bayou Belle and Beauregard sweet potato

Villordon,

DeRobertis,

Clark

2023

Plant Pathology

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“…In the past century, polycross strategies have been successfully used in sweetpotato breeding programs at Louisiana State University (LSU), the Xuzhou Sweetpotato Research Center in China, and the National Crops Resources Research Institute (NaCRRI) in Kampala, Uganda. The leading sweetpotato cultivar ‘Beauregard’ was developed using polycross selection and was released by LSU ( Rolston et al., 1987 ). Between 1999 and 2003, 22 sweetpotato cultivars were released by the NaCRRI.…”

Section: Progress In Sweetpotato Breedingmentioning

confidence: 99%

Exploring and exploiting genetics and genomics for sweetpotato improvement: Status and perspectives

Yan

Nie

Wang

et al. 2022

Plant Communications

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“…Two sweetpotato varieties, Beauregard and Jewel, were used in this study. Beauregard is one of the most popular sweetpotato varieties in the United States (Rolston, et al, 1987). It has long internodes and twinning tendency, with the vines reaching over 3 to 6 feet in length.…”

Section: Plant Materialsmentioning

confidence: 99%

Diversity, Phylogenetic Relationships, And Expression Profiles Of Invertase Inhibitor Genes In Sweetpotato

Acheampong

Sederoff

Olukolu

et al. 2022

Preprint

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Invertases and their inhibitor proteins are key regulators of carbon allocation in plants. Manipulation of invertase inhibitor (ITI) activity can potentially increase crop yield. The aim of this study was to determine the sequence diversity, phylogenetic relationships, and expression profiles of ITI genes in sweetpotato (Ipomoea batatas). The coding sequences of two ITI paralogs (SPITI1 and SPITI2) were cloned from two sweetpotato varieties (Beauregard and Jewel) and sequenced. The DNA sequences were used to deduce amino acids sequences and predicted protein properties. Quantitative PCR (qPCR) was carried out to study the expression profiles of the genes at different developmental stages. The results show that introns are absent in both SPITI paralogs. SNPs, Indels, and variable simple sequence repeats (SSR) were present in the SPITI1 paralog, however, only SNPs were identified in the SPITI2 paralog. The predicted SPITI1 protein had 168, 172, or 174 amino acid residues, and molecular weights ranging from 17.88 to 18.38 kDa. In contrast, SPITI2 coded for a protein with 192 amino acid residues, with molecular weight ranging from 20.59 to 20.65 kDa. All conserved domains of ITI proteins were present in both protein isoforms. Phylogenetic analysis indicated that SPITI genes were more closely related to I.trifida and I.triloba than I.nil, thus, suggesting their evolutionary relationship and conservation. A qPCR study indicated that both SPITI genes were expressed in all the sample tissues, though relative expression values differed across tissues at different developmental stages. This is the first study reporting diversity of SPITI genes and of an ~18 kDA isoform in sweetpotato. The findings may enable design of genetic engineering strategies for SPITI genes, including CRISPR/Cas gene editing in sweetpotato.

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Beauregard’ Sweet Potato

Cited by 59 publications

References 0 publications

Ceratocystis fimbriata alters root system architecture and causes symptom development only in detached storage roots in Bayou Belle and Beauregard sweet potato

Ceratocystis fimbriata alters root system architecture and causes symptom development only in detached storage roots in Bayou Belle and Beauregard sweet potato

Exploring and exploiting genetics and genomics for sweetpotato improvement: Status and perspectives

Diversity, Phylogenetic Relationships, And Expression Profiles Of Invertase Inhibitor Genes In Sweetpotato

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