Consequence of cyclic pollen selection for heat tolerance on the performance of different generations in maize (Zea mays L.)

Singh, Ashutosh; Ravikumar, R. L.; Antre, Suresh H.; Kuchanur, P. H.; Lohithaswa, H. C.

doi:10.1007/s12041-022-01373-y

Cited by 7 publications

(2 citation statements)

References 47 publications

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“…The effectiveness of gamete selection for increasing the frequency of resistant alleles in the resultant population was reviewed in tobacco (Touraev et al 1995), maize (Frascaroli and Songstad 2001) and chickpea (Ravikumar et al 2007;Babu and Ravikumar 2009). The F 3 and F 4 progenies were also tested for heat tolerance observed under field and laboratory condition and the GGG F 4 progenies were found to be more tolerant to heat stress demonstrating the practical benefits of pollen selection for a complex trait such as heat tolerance in maize (Singh et al 2020, Singh et al 2022. The cyclic pollen selection was found useful particularly for quantitative traits like osmotic stress tolerance in sorghum (Ravikumar et al 2003) and demonstrated the transmission of the selected trait from pollen generation to progeny (Patil et al 2006).…”

Section: Discussionmentioning

confidence: 99%

Molecular analysis of the F4 progenies obtained through pollen selection for heat tolerance in maize (Zea mays)

2023

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In the present study, three sets of F4 progeny lines developed through different cycles of pollen selection for heat tolerance were studied for the genetic differences using 16 SSR markers during 2017–20 at Department of Plant Biotechnology, University of Agricultural Sciences, Gandhi Krishi Vignana Kendra, Bengaluru, Karnataka. Three groups of F4 progenies used for the study are GGG (pollen selection for heat tolerance in F1, F2 and F3 generation); GCG (pollen selection for heat tolerance only in F1 and F3 generation); CCC (no pollen selection for heat tolerance in F1, F2 and F3 generation). Five randomly selected F4 lines of the cross of heat stress susceptible BTM4 and heat tolerant BTM6 represented each group. The three groups differed significantly for the number of male parent alleles as evidenced by SSR markers. The F4 (GGG) progenies had significantly more number of male parent type alleles compared to F4 (GCG) and F4 (CCC) lines. The F4 (CCC) lines recorded more number of female alleles compared to other F4 (GGG and GCG) lines. The effectiveness of pollen selection for heat tolerance towards increasing the frequency of male parent alleles and their transmission to the succeeding progenies has been demonstrated in the present study.

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Section: Discussionmentioning

confidence: 99%

Molecular analysis of the F4 progenies obtained through pollen selection for heat tolerance in maize (Zea mays)

2023

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“…Существует и иное мнение, согласно которому, количество пыльцевых зерен не всегда может быть использовано как селекционный признак, так как в ряде случаев растения могут формировать большое количество пыльцы, но качество ее будет недостаточно высоким [12][13][14]. Вследствие этого рекомендуют оценивать термоустойчивость генотипов на основе анализа жизнеспособности пыльцы в условиях высокой температуры, так как многие исследователи подтвердили тесную связь этого признака с завязываемостью плодов [13,15]. В настоящее время экспериментально подтверждена возможность проведения успешной селекции по вариабельности жизнеспособности пыльцы в условиях высокой температуры, что свидетельствует об эффективности использования значений этого признака как показателя термоустойчивости [16].…”

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The influence of temperature on variability of male gametophyt traits in the progeny of virus-infected tomato genotypes

Салтанович,

Andronic,

Antoci

et al. 2023

Studia MSU. St.Nat.

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The action of the thermal factor on the functionality of the male gametophyte in tomato progeny infected with tobacco mosaic virus (TMV) and tomato aspermia virus (TAV) was studied. It was established that the influence of high temperature on the male gametophyte in TMV/TAV offspring causes the modification of the functional characters of the male gametophyte. The effect produced is largely controlled by temperature 78.1...81.5% (for pollen viability), and the variation of pollen tubes sizes is determined by temperature and the interaction of factors (75.6%). The individual analysis of the structures of the variation spectra of the male gametophyte index for each genotype revealed significant differences in their sensitivity to the action of the factor that cause variability, a fact that allowed to the clustered of genotypes according to their reaction to stress, as well as the prediction of the sporophyte response to the stress. Based on the obtained data, genotypes with a high level of heat resistance were highlighted for their subsequent inclusion in the improvement process.

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Drought stress in maize: stress perception to molecular response and strategies for its improvement

Singh,

Pandey,

Pandey

et al. 2023

Funct Integr Genomics

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Consequence of cyclic pollen selection for heat tolerance on the performance of different generations in maize (Zea mays L.)

Cited by 7 publications

References 47 publications

Molecular analysis of the F4 progenies obtained through pollen selection for heat tolerance in maize (Zea mays)

Molecular analysis of the F4 progenies obtained through pollen selection for heat tolerance in maize (Zea mays)

The influence of temperature on variability of male gametophyt traits in the progeny of virus-infected tomato genotypes

Drought stress in maize: stress perception to molecular response and strategies for its improvement

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