‘Alisha’, ‘Anamaria’, ‘Bie’, ‘Bita’, ‘Caelan’, ‘Ivone’, ‘Lawrence’, ‘Margarete’, and ‘Victoria’ Sweetpotato

Andrade, M.I.; Alvaro, Abilio; Menomussanga, Joana; Makunde, Godwill; Ricardo, José; Grüneberg, Wolfgang J.; Eyzaguirre, Raúl; Low, Jan; Ortíz, Rodomiro

doi:10.21273/hortsci.51.5.597

Cited by 40 publications

(10 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The present study shows potential for increased adoption of improved varieties from participatory breeding, which is increasingly taking into account end-user preferences. Similar findings from Mozambique show that the taste of OFSP varieties was equal or better than that of the white-fleshed check cultivars (Andrade et al, 2016). In this study, women's appreciation of NASPOT8 for its high yield and taste characteristics can be attributed to their distinct role of ensuring household food security.…”

Section: Discussionsupporting

confidence: 72%

Development of a food product profile for boiled and steamed sweetpotato in Uganda for effective breeding

Mwanga

Mayanja

Swanckaert

et al. 2020

Int J of Food Sci Tech

View full text Add to dashboard Cite

This study sought to understand user preferences of raw, boiled and steamed sweetpotato, a staple food in Uganda. A sequential methodology involving state of knowledge review, gendered food mapping, processing diagnosis and consumer testing was used in Lira and Kamwenge districts. Preferred raw sweetpotato characteristics were large roots (≥ 3 cm diameter) with a sweet taste, smooth skin and hard texture, while mealiness, sweet taste and good sweetpotato smell were important attributes for boiled sweetpotato. Processors, mostly women, highlighted ease of peeling and sappiness of raw roots. There were gender differences in quality characteristic preferences and perceived importance. The released variety, NASPOT 8, had the highest overall liking in Kamwenge and was well liked in Lira. Penalty analysis of consumer data showed that sweetness and firmness were key drivers of overall liking. The results will support breeding programmes in meeting specific end-user product profiles, selection criteria and uptake of new varieties.

show abstract

Section: Discussionsupporting

confidence: 72%

Development of a food product profile for boiled and steamed sweetpotato in Uganda for effective breeding

Mwanga

Mayanja

Swanckaert

et al. 2020

Int J of Food Sci Tech

View full text Add to dashboard Cite

show abstract

“…In 2005, there were only six OFSP varieties bred in Africa; by 2016 forty-two OFSP varieties had been bred in Africa, with twelve SSA countries actively breeding ( Table 2 ). The major constraint of lack of critical mass involved in sweetpotato breeding has been overcome ( Table 2 ); high dry matter OFSP varieties are available; the accelerated breeding method validated ( Andrade et al, 2016b , Andrade et al, 2016a ) and the sweetpotato speedbreeders are using common protocols and analytic tools as a successful and growing community of practice ( Grüneberg et al, 2015 ). In 2016, 30 breeders working in 14 SSA countries signed a memorandum committing to the principle that at least 50% of the varieties they submit for release will be orange-fleshed.…”

Section: Phase 3: the Stars Align (2010–2016)mentioning

confidence: 99%

Tackling vitamin A deficiency with biofortified sweetpotato in sub-Saharan Africa

Low

Mwanga

Andrade³

et al. 2017

Global Food Security

238

202

View full text Add to dashboard Cite

Orange-fleshed sweetpotato (OFSP) is a rich plant-based source of beta-carotene, which the body converts into vitamin A. In sub-Saharan Africa, sweetpotato is known as a food security crop but most varieties grown are high dry matter white-fleshed types, lacking beta-carotene. In 1995, researchers recognized the potential of OFSP varieties to address widespread vitamin A deficiency in SSA using an integrated agriculture-nutrition approach. With their partners, they confronted conventional wisdom concerning food-based approaches and institutional barriers, to build the evidence base and breed 42 OFSP varieties adapted to farmer needs and consumer preferences. Subsequently, a multi-partner, multi-donor initiative, launched in 2009, has already reached 2.8 million households. This review summarizes that effort describing how the changing policy environment influenced the process.

show abstract

“…The modification of amyloplasts, which are the energy stores within the plant cell to store carotenoids, results in starch biosynthesis and carotenoid biosynthesis competing for carbon that leads to the negative association reported in several crops including citrus (Cao et al 2015), potato (Mortimer et al 2016), and sweetpotato (Yada et al 2017). Application of quantitative and population genetic principles, combined with improved experimental and statistical designs, has led to the release of many improved sweetpotato varieties, including orange-fleshed ones, in several countries within SSA recently (Gruneberg et al 2015;Andrade et al 2016). However, the actual adoption of many improved orange-fleshed varieties has been limited in part by the negative starch/β-carotene correlation and the yet undefined textural characteristics.…”

mentioning

confidence: 99%

Quantitative trait loci and differential gene expression analyses reveal the genetic basis for negatively associated β-carotene and starch content in hexaploid sweetpotato [Ipomoea batatas (L.) Lam.]

et al. 2019

View full text Add to dashboard Cite

Key message β-Carotene content in sweetpotato is associated with the Orange and phytoene synthase genes; due to physical linkage of phytoene synthase with sucrose synthase, β-carotene and starch content are negatively correlated. Abstract In populations depending on sweetpotato for food security, starch is an important source of calories, while β-carotene is an important source of provitamin A. The negative association between the two traits contributes to the low nutritional quality of sweetpotato consumed, especially in sub-Saharan Africa. Using a biparental mapping population of 315 F 1 progeny generated from a cross between an orange-fleshed and a non-orange-fleshed sweetpotato variety, we identified two major quantitative trait loci (QTL) on linkage group (LG) three (LG3) and twelve (LG12) affecting starch, β-carotene, and their correlated traits, dry matter and flesh color. Analysis of parental haplotypes indicated that these two regions acted pleiotropically to reduce starch content and increase β-carotene in genotypes carrying the orange-fleshed parental haplotype at the LG3 locus. Phytoene synthase and sucrose synthase, the rate-limiting and linked genes located within the QTL on LG3 involved in the carotenoid and starch biosynthesis, respectively, were differentially expressed in Beauregard versus Tanzania storage roots. The Orange gene, the molecular switch for chromoplast biogenesis, located within the QTL on LG12 while not differentially expressed was expressed in developing roots of the parental genotypes. We conclude that these two QTL regions act together in a cis and trans manner to inhibit starch biosynthesis in amyloplasts and enhance chromoplast biogenesis, carotenoid biosynthesis, and accumulation in orange-fleshed sweetpotato. Understanding the genetic basis of this negative association between starch and β-carotene will inform future sweetpotato breeding strategies targeting sweetpotato for food and nutritional security.

show abstract

‘Alisha’, ‘Anamaria’, ‘Bie’, ‘Bita’, ‘Caelan’, ‘Ivone’, ‘Lawrence’, ‘Margarete’, and ‘Victoria’ Sweetpotato

Cited by 40 publications

References 8 publications

Development of a food product profile for boiled and steamed sweetpotato in Uganda for effective breeding

Development of a food product profile for boiled and steamed sweetpotato in Uganda for effective breeding

Tackling vitamin A deficiency with biofortified sweetpotato in sub-Saharan Africa

Quantitative trait loci and differential gene expression analyses reveal the genetic basis for negatively associated β-carotene and starch content in hexaploid sweetpotato [Ipomoea batatas (L.) Lam.]

Contact Info

Product

Resources

About