Current status on production and utilization of spider plant (Cleome gynandra L.) an underutilized leafy vegetable in Kenya

Onyango, Cecilia Moraa; Kunyanga, Catherine Nkirote; Ontita, Edward; Narla, R. D.; Kimenju, J. W.

doi:10.1007/s10722-013-0036-7

Cited by 41 publications

(33 citation statements)

References 9 publications

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“…Despite the considerable benefits of the crop, it is still regarded as a minor crop and has a lack of support from research and development programmes to develop high‐yielding cultivars and improved cultural practices (Onyango et al. ). Of all studies dealing with the use of molecular markers in genetic diversity studies in African leafy vegetables (reviewed by Omondi et al.…”

Section: Introductionmentioning

confidence: 99%

“…It is one of the most important African leafy vegetables after Amaranthus spp., cowpea (Vigna unguiculata) and African nightshades (Solanum spp.). These leafy vegetables have been recognized to play an important role in human nutrition, food security and income generation among poor rural communities and recently in urban communities (Abukutsa-Onyango 2007;Onyango et al 2013). Cleome gynandra leaves are rich in proteins, vitamins and minerals, such as iron and zinc, and have other beneficial health compounds, such as flavonoids and glucosinolates (van Jaarsveld et al 2014;Odhav et al 2011;Uusiku et al 2010).…”

Section: Introductionmentioning

confidence: 99%

“…It is important for rural households' food security as this vegetable is available during periods of drought or in seasons when other main food crops do not grow well (Chweya and Mnzava 1997). Despite the considerable benefits of the crop, it is still regarded as a minor crop and has a lack of support from research and development programmes to develop high-yielding cultivars and improved cultural practices (Onyango et al 2013). Of all studies dealing with the use of molecular markers in genetic diversity studies in African leafy vegetables (reviewed by Omondi et al 2016), only one study with limited scope could be listed for C. gynandra.…”

Section: Introductionmentioning

confidence: 99%

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Mating biology, nuclear DNA content and genetic diversity in spider plant (Cleome gynandra) germplasm from various African countries

et al. 2017

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Cleome gynandra (L.) Briq. is an African leafy vegetable with a potential to improve food security and micronutrient deficiencies. Cytological traits, breeding biology and genetic diversity of 30 selected entries of C. gynandra from six African countries were investigated. The entries consisted of advanced lines, gene bank accessions and farmers’ cultivars. Our study revealed chromosome numbers of 2n = 34 in root tip metaphase cells from one entry. The 30 entries were found to be diploid with genome sizes ranging from 2.31 to 2.45 pg/2C. Hand pollination experiments were carried out to assess self‐incompatibility within the entries and revealed that they are self‐ and cross‐compatible. For genetic diversity studies within and among the entries, the pooled data of 499 polymorphic bands from 11 amplified fragment length polymorphism primer combinations and nine simple sequence repeat markers were used. The genetic distance among the entries ranged from 0.13 to 0.77. In a principal coordinate analysis, the farmers’ cultivars formed a cluster separate from the advanced lines and the gene bank entries, and the latter were not well resolved.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Mating biology, nuclear DNA content and genetic diversity in spider plant (Cleome gynandra) germplasm from various African countries

et al. 2017

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“…(Briq.) is an important indigenous vegetable that is neglected and underutilized but plays a crucial role in food and nutrition security and income generation of the rural poor [1][2][3][4]. It grows as a volunteer weedy crop in farmers' fields and in the wild during the rainy season [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Diversity and Domestication Status of Spider Plant (Gynandropsis gynandra, L.) amongst Sociolinguistic Groups of Northern Namibia

et al. 2020

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Knowledge on the diversity and domestication levels of the spider plant (Gynandropsis gynandra) has the potential to affect pre-breeding for client-preferred traits, yet information is scarce in Namibia due to limited research. We investigated indigenous knowledge on the species diversity and domestication levels in the regions of Kavango West, Ohangwena, Omusati, Oshana, and Oshikoto of northern Namibia. Semi-structured interviews involving 100 randomly selected farming households, four key informant interviews, and a focus group discussion were conducted. Descriptive and chi-square tests were conducted using IBM SPSS version 20. Out of the possible four morphotypes, the results suggested that only one with green stem and green petiole existed and was associated with soils rich in organic manure. Spider plant abundance was reported to be on the decline, due to declining soil fertility. On a scale of 0 (wild species) to 6 (highest level of domestication), an index of 1.56 was found and this implied very low domestication levels. Furthermore, the study found significant differences in the trends of domestication across the sociolinguistic groups (χ2 (12, N = 98) = 46.9, p < 0.001) and regions studied (χ2 (12, N = 100) = 47.8, p < 0.001), suggesting cultural and geographical influences. In conclusion, the findings constituted an important precedent for guiding subsequent pre-breeding efforts.

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“…The crop has a number of health benefits, which include iron supplementation for treatment of anaemia, muscle pains and chest pains (Chivinge, 1983;Chweya, 1997). In most African countries, the crop is sold on the markets (Onyango et al, 2013) to generate income for the resource-limited farmers. Spider plant is a diploid plant with a common number of chromosomes of twenty (2n = 2x = 20) (Chweya, 1997).…”

Section: Introductionmentioning

confidence: 99%

Discriminating phenotypic markers reveal low genetic diversity in spider plant

Wenyika¹,

Gasura²,

Kafesu³

et al. 2015

Afr. Crop Sci. J.

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Traditional vegetables such as spider plant (Cleome gynandra L.) have better nutritional and health benefits. The aim of this study was to determine the extent of genetic diversity of spider plant genotypes based on phenotypic markers and understand its implications in germplasm utilisation in Zimbabwe. Eighteen genotypes collected from across Zimbabwe were evaluated for phenotypic traits. There were no significant differences (P<0.05) in days to flowering, number of branches, fresh and dry mass, pod number, pod length and stem height. Variance components due to error were higher than genotypic variance components for all quantitative traits, resulting in low broad sense heritability estimates, < 39%. Stem colour, pod lining, number of leaf loblets, pod shape and colour, and stem pubescence showed variations. Hierarchical cluster analysis showed 30% dissimilarity among genotypes. At 85% similarity level, there were four clusters and one of the clusters had eleven out of eighteen genotypes. The results showed low genetic diversity of spider plant in the country. Most agronomic traits could have been affected by directional selection arising from farmers preferences. Some selectively neutral descriptor traits such as colour of the stem and pods, leaf loblets number, pod lining and pod shape can be used in characterising and distinguishing spider plant genotypes.Key Words: Cleome gynandra, descriptor traits, Zimbabwe RÉSUMÉLes légumes traditionnels tels que la plante arraignée (Cleome gynandra L.) ont de bonnes propriétés nutritionnelles. L'objectif de cette étude était de déterminer l'envergure de la diversité génétique des génotypes de la plante arraignée, et ceci en se basant sur des marqueurs phénotypiques en vue de l'utilisation des germplasm au Zimbabwé. Dix-huit génotypes collectés dans différents endroits au Zimbabwé ont été évalués suivant des traits phénotypiques. Il n'y avait pas de différence significative (P<0.05) entre les dates de floraison, nombres de branches, masse fraîche et sèche, nombre de fruit, longueur du fruit et taille de la tige. La composante de variance liée à l'erreur expérimentale était plus élevée que la composante de variance génotypique pour tous les traits quantitatifs mesurés, ceci résulte en une valeur faible d'héritabilité au sens large, < 39%. La couleur de la tige, l'aspect du fruit, le nombre de lobules foliaires, la forme et la couleur du fruit et la pubescence de la tige ont montré une variabilité. La classification numérique a montré 30% de dissimilarité entre les génotypes. A 85% de niveau de similarité, il y avait quatre groupes dont l'un regroupait onze des dix-huit génotypes. Les résultats ont montré une faible diversité génétique au sein de la plante arraignée au Zimbabwé. La plupart des traits agronomiques pourraient affectés par selection directionelle en tenant compte des préférences des producteurs. Certains descripteurs sélectivement neutres tels que la couleur de la tige et du fruit, le nombre de lobules foliaires, l'aspect du fruit et la forme du fruit...

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Current status on production and utilization of spider plant (Cleome gynandra L.) an underutilized leafy vegetable in Kenya

Cited by 41 publications

References 9 publications

Mating biology, nuclear DNA content and genetic diversity in spider plant (Cleome gynandra) germplasm from various African countries

Mating biology, nuclear DNA content and genetic diversity in spider plant (Cleome gynandra) germplasm from various African countries

Diversity and Domestication Status of Spider Plant (Gynandropsis gynandra, L.) amongst Sociolinguistic Groups of Northern Namibia

Discriminating phenotypic markers reveal low genetic diversity in spider plant

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