Heterosis and inbreeding depression for fruit yield attributing traits in eggplant

Mistry, Chintan R.; Kathiria, K. B.; Sabolu, Srikanth; Kumar, Sushil

doi:10.1016/j.cpb.2018.10.004

Cited by 12 publications

(18 citation statements)

References 12 publications

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“…As well as in Japan by Nagai and Kida [68]. Despite economic as well as nutritional importance, breeding efforts in eggplant are still limited, because of that, its production is lower in comparison with other solanaceous crops [69].…”

Section: Heterosis In Eggplantmentioning

confidence: 99%

“…Generally, evaluation of elite-breeding lines as parents and its first filial generations (F 1 s) to detect heterotic potential becomes a routine practice in heterosis breeding [75]. In eggplant, Mistry et al [69] found significantly positive heterobeltiosis for fruit volume, fruit length, and fruit yield per plant, which reflect the hybrid vigor can be used on a commercial scale for these traits. The selection of parents is a very critical step that reflects the performance of hybrids for hybrid breeding programs [76].…”

Section: Heterosis In Eggplantmentioning

confidence: 99%

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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: Heterosis In Eggplantmentioning

confidence: 99%

Section: Heterosis In Eggplantmentioning

confidence: 99%

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

Kumar

Sharma

Jain

et al. 2020

Plants

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“…Signifcant positive MP heterosis recorded for SlD, NAFlPP, SgD, OP, SgL, and OA showed that the hybrids performed higher than the parents' mean performance, which is an advantage except for the number of aborted fowers. Signifcant positive BP and MP heterosis indicated the predominance of nonadditive gene actions or most likely overdominance in the genetic control of these traits [40]. Signifcant negative BP heterosis recorded for the NFlPT, TNFlPP, and FlW indicated poor performance in all the crosses compared to the better parent (Table 1).…”

Section: Discussionmentioning

confidence: 97%

“…Liu et al [20] reported that tomato F 1 hybrids are usually earlier in fruit setting and production than the earliest parents are. Kanneh et al [46] not understood [40]. Genetic and epigenetic reprogramming of genes in hybrids due to the switching of two parents' chromosomes has been linked to one of the justifcations for positive heterobeltiosis for delayed fowering and fruiting [49].…”

Section: Discussionmentioning

confidence: 99%

Hybrid Vigor and Heritability Estimates in Tomato Crosses Involving Solanum lycopersicum × S. pimpinellifolium under Cool Tropical Monsoon Climate

Ene

Abtew

Oselebe

et al. 2023

International Journal of Agronomy

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High humidity is a major constraint to increased tomato fruit production in a cool tropical monsoon climate. However, the genetic variation observed in Solanum pimpinellifolium makes it a good gene donor for breeding tomato cultivars capable of thriving under high humidity. The objective of this study was to estimate heterosis, heritability for higher yield, and to assess the adaptability of the genotypes to humid conditions. Genotypes were raised from five morphologically divergent parents, viz., wild parent (W)–“LA2093,” “CLN2498D” (D), “CLN2417H” (H), “Tima” (T), and “UC Dan INDIA” (U). The F1s were generated by biparental mating design using “LA2093” as a common pollen donor that was selfed to produce F2s and backcrossed to both parents to obtain BC1s and BC2s. The trial was laid out in a randomized complete block design with three replicates. Data were collected on selected yield-influencing traits and analyzed. “D × W” and “U × W” hybrids showed significant positive better parent heterosis for fruit weight per plant (30.4% and 35.5%) and total fruit yield (48.6% and 26.9%), respectively. The additive variance was higher than dominance variance for all the traits, including total fruit yield in all hybrids viz., “H × W,” “D × W,” “T × W,” and “U × W.” High narrow sense heritability estimate of ≥60% was observed in “D × W” and “U × W” hybrids for the majority of the floral and fruit traits including total fruit yield. This makes the improvement of “D × W” and “U × W” hybrids by direct selection advantageous. Hence, the adoption of selection for the affected traits in subsequent tomato breeding programs would enhance fruit yield and adaptability to humid environments.

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“…Heterobeltiosis was calculated at the superiority of hybrid value from the better parent value using formula (3). Significance of the estimates of heterosis and heterobeltiosis were tested by using t-test (MISTRY et al, 2018). In the formulas, abbreviations can be explained as, Mean of hybrids performance; Mean of mid parental and Mean performance of better parent.…”

Section: Discussionmentioning

confidence: 99%

Susceptibility, heterosis and heterobeltiosis evaluations for fire blight resistance in pear

Mertoğlu¹,

Evrenosoğlu²,

Nuri³

2020

Genetika

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Fire blight is a devastating disease of Pomaceous trees that can cause death of the plants and leading to substantial crop losses. Controlled hybridization is widely used in breeding programs, due to the polygenic nature of fire blight resistance and the complexity of its mechanism. Right choice of parents appears to be the most significant criterion for obtaining genotypes that have desired characteristics. In this study 13 parental pear cultivars and 9749 F1 pear hybrids that were obtained from 36 different hybridization combinations were evaluated for fire blight resistance. Manifestation of heterosis and heterobeltiosis were also determined. As results of the study, 'Magness' is foremost as the most resistant variety, and followed by 'Ankara', 'Moonglow', 'Kiefer' and 'Kaiser Alexandre', respectively. 'Conference', 'Williams' and 'Santa Maria' were found susceptible to disease, while 'Guz', 'Limon', 'Bursa', 'Akca' and 'Tas' were highly susceptible to disease. Maternal parent was more effective for the transmission of fire blight resistance, when compared to pollinator parent. For this reason, it is suggested that disease-resistant varieties should be used as maternal parent. Heterosis was detected in 12 hybridization combinations. However, heterobeltiosis-focused approach was more effective for resistance breeding. For fire blight resistance, 'Magness  Kaiser Alexandre' and 'Magness  Kiefer' hybridization combinations that heterobeltiosis was determined are recommended.

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Heterosis and inbreeding depression for fruit yield attributing traits in eggplant

Cited by 12 publications

References 12 publications

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

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

Hybrid Vigor and Heritability Estimates in Tomato Crosses Involving Solanum lycopersicum × S. pimpinellifolium under Cool Tropical Monsoon Climate

Susceptibility, heterosis and heterobeltiosis evaluations for fire blight resistance in pear

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