Cytoplasmic Male Sterility in Eggplant

Khan, Md. Mizanur Rahim; Isshiki, Shiro

doi:10.2503/hortj.mi-ir03

Cited by 19 publications

(8 citation statements)

References 24 publications

(30 reference statements)

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“…CMS in plants is a sort of sterility caused by specific nuclear and mitochondrial interactions. It is a maternally inherited trait that enables breeders to exploit the hybrid vigor [92]. Nagai and Kida [68] first reported quantitative traits in eggplant hybrids and observed that heterosis was expressed in total yield, plant height, number of branches, early maturity, number of fruits per plant, number of spines on the pedicel, and fruit weight.…”

Section: Prospects Of Male Sterility In Eggplant Heterosismentioning

confidence: 99%

Heterosis Breeding in Eggplant (Solanum melongena L.): Gains and Provocations

Kumar

Sharma

Jain

et al. 2020

Plants

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Heterosis (or hybrid vigor) results in a hybrid’s phenotypic superiority over its founder parents for quantitative and qualitative traits. Hybrid vigor is defined by mechanisms such as dominant complementation, over-dominance, and epistasis. Eggplant (Solanum melongena L.) is an essential vegetable crop and a good source of dietary minerals, vitamins, and anthocyanins, with a high oxygen radical absorbance capacity and low caloric value. Given the economic and nutritional significance of eggplants, breeding efforts focus on developing high-yielding varieties—mostly F1 hybrids—with important traits. Studies indicate the successful exploitation of heterosis in the eggplant for a considerable improvement with respect to quantitative traits. In this direction, estimating heterosis for yield-related traits could well be useful for examining the most beneficial hybrid mix with the exploitation of top-quality hybrid. This review examines the current perception of the breeding and molecular aspects of heterosis in eggplants and cites several studies describing the mechanisms. Rendering and combining recent genomics, epigenetic, proteomic, and metabolomics studies present new prospects towards the understanding of the regulatory events of heterosis involved in the evolution and the domestication of the eggplant ideotype.

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Section: Prospects Of Male Sterility In Eggplant Heterosismentioning

confidence: 99%

Heterosis Breeding in Eggplant (Solanum melongena L.): Gains and Provocations

Kumar

Sharma

Jain

et al. 2020

Plants

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“…Eggplant flowers are large, easy to emasculate and pollinate by hand and each fruit can give a large number of seeds, typically between 200 and 2000 seeds [ 19 , 20 ]. In addition, male-sterility systems have been described [ 21 , 22 ], which might facilitate the development of hybrids.…”

Section: Introductionmentioning

confidence: 99%

Diallel genetic analysis for multiple traits in eggplant and assessment of genetic distances for predicting hybrids performance

et al. 2018

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Evaluation and prediction of the performance of hybrids is important in eggplant (Solanum melongena) breeding. A set of 10 morphologically highly diverse eggplant parents, including nine inbred S. melongena and one weedy S. insanum accessions, were intercrossed according to a half-diallel mating design without reciprocals to obtain 45 hybrids. Parents and hybrids were evaluated for 14 morphological and agronomic conventional descriptors and 14 fruit morphometric traits using Tomato Analyzer. Genetic distances among parents were estimated with 7,335 polymorphic SNP markers. Wide ranges of variation and significant differences were observed in the set of 55 genotypes for all traits, although the hybrids group had significantly higher vigour and yield than parents. General and specific combining abilities (GCA and SCA) were significant for most (GCA) or all (SCA) traits, although a wide variation was obtained for GCA/SCA ratios. Many relevant traits associated to vigour and yield had low GCA/SCA ratios and narrow-sense heritability (h2) values, while the reverse occurred for most fruit shape descriptors. Broad-sense heritability (H2) values were generally high, irrespective of GCA/SCA ratios. Significant correlations were found between traits related to size of leaf, flower and fruit, as well as among many fruit morphometric traits. Genetic distances (GD) among parents were coherent with their phylogenetic relationships, but few significant and generally low correlations were found between GD and hybrid means, heterosis or SCA. The results provide relevant information for developing appropriate strategies for parent selection and hybrid development in eggplant and suggest that GD among parents have limited value to predict hybrid performance in this crop.

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“…Moreover, hybrids are protected against unauthorized multiplication [ 1 ]. Therefore, MS is of interest due to its application in hybrid seed production [ 2 , 3 ]. The discovery and utilization of MS plants can provide excellent germplasm resources for yields increase, quality improvement and resistance enhancement, which have a practical value in eggplant breeding.…”

Section: Introductionmentioning

confidence: 99%

“…Although the molecular mechanism of MS has been investigated in several crops and model plants, it remains poorly understood in the eggplant. Researchers have long known that genetic MS is caused by recessive nuclear genes [ 3 , 32 ]. MS was induced by suppressing transcription factors and fertility could be reversed by ethanol [ 33 , 34 ].…”

Section: Introductionmentioning

confidence: 99%

The key genes and pathways related to male sterility of eggplant revealed by comparative transcriptome analysis

et al. 2018

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BackgroundMale sterility (MS) is an effective tool for hybrid production. Although MS has been widely reported in other plants, such as Arabidopsis and rice, the molecular mechanism of MS in eggplant is largely unknown. To understand the mechanism, the comparative transcriptomic file of MS line and its maintainer line was analyzed with the RNA-seq technology.ResultsA total of 11,7695 unigenes were assembled and 19,652 differentially expressed genes (DEGs) were obtained. The results showed that 1,716 DEGs were shared in the three stages. Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis indicated that these DEGs were mainly involved in oxidation-reduction, carbohydrate and amino acid metabolism. Moreover, transcriptional regulation was also the impact effector for MS and anther development. Weighted correlation network analysis (WGCNA) showed two modules might be responsible for MS, which was similar to hierarchical cluster analysis.ConclusionsA number of genes and pathways associated with MS were found in this study. This study threw light on the molecular mechanism of MS and identified several key genes related to MS in eggplant.Electronic supplementary materialThe online version of this article (10.1186/s12870-018-1430-2) contains supplementary material, which is available to authorized users.

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Cytoplasmic Male Sterility in Eggplant

Cited by 19 publications

References 24 publications

Heterosis Breeding in Eggplant (Solanum melongena L.): Gains and Provocations

Heterosis Breeding in Eggplant (Solanum melongena L.): Gains and Provocations

Diallel genetic analysis for multiple traits in eggplant and assessment of genetic distances for predicting hybrids performance

The key genes and pathways related to male sterility of eggplant revealed by comparative transcriptome analysis

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