Aspects relating to seed production in Gloriosa superba L.

Roux, Lucia Le; Robbertse, P.J.

doi:10.1016/s0254-6299(15)30743-2

Cited by 12 publications

(9 citation statements)

References 8 publications

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“…Consequently, in partially SI populations, individuals can vary from completely selfsterile to completely self-fertile, and cross-pollinations between weak and strong SI genotypes are expected to generate a continuous distribution of self-fertilities in the offspring (Crowe 1971;Ascher 1976). There is an extensive and historic literature on the characteristics and determinants of partial SI in cultivars (Atwood 1942;Wilsie 1958;Townsend 1966;Henny and Ascher 1976;Flaschenriem and Ascher 1979;Holland and McNeilly 1990;Nyman 1992; Thorogood and Hayward 1992;Gaude et al 1993), but only recently have many studies begun describing variation in partial self-incompatibility in natural populations of plants (Lloyd 1968;Becerra and Lloyd 1992;Levin 1993;Eckert and Barrett 1994;Kowyama et al 1994;Luijten et al 1996;Ramsey and Vaughton 1996;Chen et al 1997;Le Roux and Robbertse 1997;Daehler 1999;Rodriguez et al 1999;Schmidt et al 1999;Young et al 1999;Hiscock 2000;Lipow and Wyatt 2000;Stephenson et al 2000;Borba et al 2001); there is still little consensus about what effect variation in the strength of SI has on mating systems. For example, although there are distinct differences among individuals in partially SI populations in their ability to self-fertilize, we do not know whether individuals that differ in their degree of self-fertility actually practice different levels of self-fertilization in nature.…”

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confidence: 99%

Parental Effects in a Partially Self‐Incompatible HerbCampanula rapunculoidesL. (Campanulaceae): Influence of Variation in the Strength of Self‐Incompatibility on Seed Set and Progeny Performance

Good‐Avila

Stephenson

2003

The American Naturalist

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We employ a full reciprocal diallel design between 10 parental plants that differed in their strength of self-incompatibility (SI; strong, intermediate, and weak) to examine parental effects on seed set and 10 components of fitness of progeny performance in Campanula rapunculoides. We perform ANOVAs to separate the influence of the strength of SI and the identity of the maternal and paternal parent on family performance. We calculate the phenotypic and genetic correlations between traits to determine potentially evolutionary constraints. Finally, we employ maximum likelihood methods to estimate the components of quantitative genetic variance, as defined by Cockerham and Weir in their BioModel c. Our most significant finding is that weak SI plants have high outcrossed seed set as maternal parents. We argue that direct or pleiotropic effects of modifiers of SI probably cause this. Second, we find that extranuclear interactions, as defined by the BioModel, have strong effects on seed set and several vegetative and flowering traits. These findings indicate that some maternal plants selectively provision seeds sired by specific paternal donors and that some of this variation appears to be associated with modifiers of the strength of SI. We find other sources of significant quantitative genetic variation for all of the traits we examine and discuss the possible role these play in the evolution of the reproductive system. Taken together, our findings show that variation in the strength of SI may influence levels of quantitative genetic variation that, in turn, can influence the reproductive success of individuals in C. rapunculoides

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confidence: 99%

Parental Effects in a Partially Self‐Incompatible HerbCampanula rapunculoidesL. (Campanulaceae): Influence of Variation in the Strength of Self‐Incompatibility on Seed Set and Progeny Performance

Good‐Avila

Stephenson

2003

The American Naturalist

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“…It is also known by its trade name 'Glory lily'; in English it is known as 'Malabar glory lily' and, in Hindi and Sanskrit as 'Kalihari' and 'Agnisikha', respectively [6][7][8]. G. superba is a commercially imperative medicinal plant with wide range of biological activities.…”

Section: Introductionmentioning

confidence: 99%

Screening the elite chemotypes of Gloriosa superba L. in India for the production of anticancer colchicine: simultaneous microwave-assisted extraction and HPTLC studies

et al. 2021

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Background Gloriosa superba L. (Colchicaceae) is a high-value medicinal plant indigenous to Africa and Southeast Asia. Its therapeutic benefits are well-established in traditional medicines including Ayurveda. It is well known for its natural bioactive compound colchicine which exhibits a wide range of pharmacological activities i.e. rheumatism, gout and was also introduced into clinical practices. The increasing demand as well as its illegal harvesting has brought this valuable plant under threatened category. Methods The present investigation describes a microwave assisted extraction (MAE) strategy coupled with a densitometric-high performance thin layer chromatographic (HPTLC) methodology for the analysis of colchicine from 32 different populations of G. superba. A Box-Behnken statistical design (3 level factor) has been employed to optimize MAE, in which power of microwave, time of irradiation, aqueous ethanol and pH were used as independent variables whereas colchicine was used as the dependent variables. Chromatography was carried out on Silica gel 60 F254 TLC plates with toluene: methanol, 85:15 (v/v) being used as solvent system. Densitometric measurement was performed at λ=254 nm following post-derivatization (10% methanolic sulphuric acid). Results Optimal conditions for extraction to obtain the maximum colchicine yield was found to be 7.51 mg g− 1 which was very close to be predicted response 7.48 mg g− 1 by maintaining microwave power (460 W), irradiation time (6.4 min), aqueous ethanol-30, pH -3. Colchicine content ranged between 2.12–7.58 mg g− 1 among 32 G. superba populations in which only three chemotypes viz. GS- 1, GS- 3, and GS- 2 collected from West Bengal and Sikkim, respectively exhibited maximum yield of colchicine. Conclusion Therefore, this newly developed optimized MAE coupled with HPTLC densitometry methodology not only quantifies colchicine in order to identify elite chemotypes of G. superba, but it also encourages in selecting high yielding populations of the plants for industrial use and economic boost for the farmers. This validated, simple and reproducible HPTLC protocol is being used for the first time to estimate colchicine from natural populations of G. superba obtained from 32 different geographical regions of India. Graphical abstract

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“…This species appears seasonally after rains in northern Kenya and other dryland areas of Eastern Africa (Agnew & Agnew, 1994). Recent studies of Gloriosa pollination have focused on the taxonomy in relation to hybridisation (Nakamura et al, 2005), and improvement in cultivation for seed/extraction of colchicine that is used both in traditional medicine and the treatment of gout (Le Roux & Robbertse, 1997;Hassan & Fardous, 2003). Members of the Colchicaceae have floral morphologies that suggest biotic pollination and the showy floral display typical of Gloriosa spp.…”

Section: Introductionmentioning

confidence: 99%

Butterfly Pollination of the Dryland Wildflower Gloriosa minor

Martins

2015

Journal of East African Natural History

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Aspects relating to seed production in Gloriosa superba L.

Cited by 12 publications

References 8 publications

Parental Effects in a Partially Self‐Incompatible HerbCampanula rapunculoidesL. (Campanulaceae): Influence of Variation in the Strength of Self‐Incompatibility on Seed Set and Progeny Performance

Parental Effects in a Partially Self‐Incompatible HerbCampanula rapunculoidesL. (Campanulaceae): Influence of Variation in the Strength of Self‐Incompatibility on Seed Set and Progeny Performance

Screening the elite chemotypes of Gloriosa superba L. in India for the production of anticancer colchicine: simultaneous microwave-assisted extraction and HPTLC studies

Butterfly Pollination of the Dryland Wildflower Gloriosa minor

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