Direct Response of a Maize Synthetic to Recurrent Selection for Resistance to Stem Borers

Sandoya, Germán V.; Butrón, Ana; Álvarez, Ángel Carracedo; Ordás, A.; Malvar, R. A.

doi:10.2135/cropsci2007.02.0084

Cited by 34 publications

(45 citation statements)

References 31 publications

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“…The variations detected among cycles for heritability estimates may be due to experimental error, genotype x environment interaction effects and possibly due to linkage disequilibrium leading to over estimation of genetic variances. Similar results were reported among cycles of maize populations (Sandoya 2008;Ana Paula et al 2013). The improvement of grain yield and a reduction in the number of exit holes, cumulative stem tunneling, and leaf feeding damage scores is possible through the S1 progeny recurrent selection.…”

Section: Discussionsupporting

confidence: 86%

“…This breeding scheme is effective in increasing favourable alleles of agronomic and economic traits of importance in maize populations. The S1 progeny recurrent selection scheme is characterized by the additive genetic effects that are more important than the non-additive gene effects in stem borer resistance in maize populations (Sandoya 2008;Schnable and Springer 2013).…”

Section: Introductionmentioning

confidence: 99%

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Response to S1 recurrent selection for resistance to two stem borers, Busseola fusca and Chilo partellus, in two tropical maize populations

et al. 2015

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Stem borers, Busseola fusca and Chilo partellus, are among the key devastating lepidopteran insect pests of maize causing grain yield losses. Recurrent selection studies for stem borer resistance in maize are limited. However, maize populations carrying resistance genes to these stem borers have not been exploited fully in breeding programmes. The objective of the study was to separately improve resistance to B. fusca and C. partellus stem borers for two maize populations CML395/MBR C5 Bc and CML444/MBR/MDR C3Bc and therefore grain yield after two cycles of S1 progeny recurrent selection. Cycle 0 and the advanced generations (cycle 1-susceptible, cycle 1-resistant and cycle 2-resistant) were evaluated at three locations in Kenya using a 35 9 12 a-lattice design with 2 replications. The net reductions in cumulative tunneling, number of exit holes and leaf feeding damage scores ranged from 0 to 69 % for both populations after two cycles of selection. In the two populations, each cycle of selection for borer resistance improved grain yield by 0.5-0.8 t ha . Actual net gains in grain yield with reference to cycle 0 were 43 % for population CML395/MBRC5 Bc under B. fusca infestation and 70 % under C. partellus infestation. For population CML444/MBR/MDR C3Bc, the actual net gains in grain yield were 25 % under B. fusca infestation and 36 % under C. partellus infestation. The reductions in the injurious effects attributable to leaf feeding damage, cumulative stem tunneling and number of exit holes contributed towards the 43 and 70 % net genetic gain in grain yield under B. fusca and C. partellus infestation respectively, for both populations. Broad sense heritability (H 2 ) for grain yield ranged from 2 to 98 % in both maize populations. The study showed that two cycles of S1 progeny recurrent selection was effective in accumulating favourable alleles for B. fusca and C. partellus stem borer resistance.

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Section: Discussionsupporting

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Response to S1 recurrent selection for resistance to two stem borers, Busseola fusca and Chilo partellus, in two tropical maize populations

et al. 2015

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“…However when traits related to insect resistance, such as tunnel length or damage ratings, were the selection criteria, other authors have reported a decrease in grain yield (Klenke et al 1986;Nyhus et al 1989;Russell et al 1979;Sandoya et al 2008). The relationship between yield and resistance is poorly understood and our data indicate that both selection programs have managed yield genes independent of stalk resistance genes.…”

Section: Discussionmentioning

confidence: 63%

Comparison of two methods of reciprocal recurrent selection in maize (Zea mays L.)

et al. 2012

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Reciprocal recurrent selection (RRS) was proposed for simultaneously improving two populations and their cross. A modification of the classical full-sib RRS (FS-RRS) was proposed in which the performance of full-sibs and S 2 families is combined in a selection index (FS-S 2 -RRS).The Mediterranean corn borer (MCB) is the main corn borer specie in the Mediterranean and adjacent areas and produces important yield losses. We started two RRS programs (FS-RRS and FS-S 2 -RRS) from the same maize population in which the selection criterion was grain yield under artificial infestation with MCB eggs. Original populations, two cycles of selection derived from them by both RRS methods, and population crosses were evaluated under MCB attack and under insecticide treatment in three different environments. The objective was to compare the efficiency of the FS-RRS and the FS-S 2 -RRS methods for improving grain yield. We found that the FS-S 2 -RRS method was successful for improving the yield of the population cross under optimum conditions (the regression coefficient over cycles was b=0.87** Mg ha -1 cycle -1 ) without losing yield under high pressure of MCB attack (b=0.07). On the contrary, FS-RRS failed to improve the yield of the population cross under optimum conditions (b=0.65), and tended to decrease the yield under high levels of MCB attack (b=-0.26). We conclude that for developing high yielding and stable varieties FS-S 2 -RRS is more efficient than the classical FS-RRS method.

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“…Selection for increased grain yield would cause reduction in stem tunnelling and cob damage. Sandoya et al (2008) observed that selection for resistance to Mediterranean Corn Borer (MCB) positively influenced grain yield. Sandoya et al (2010) however reported that selection for resistance to MCB significantly reduced days to silking, plant and ear height, and 100-kernel weight, but seedling vigour was increased.…”

Section: Discussionmentioning

confidence: 99%

“…Indirect selection for a trait will only be successful if the secondary character has substantially higher heritability and genetic correlation (Falconer, 1989). Selection for resistance to Mediterranean Corn Borer (MCB) has been reported to positively influence grain yield (Sandoya et al, 2008), and significantly reduced days to silking, plant and ear height, and 100-kernel weight, but seedling vigour was increased (Sandoya et al, 2010). This study was therefore carried out to (i) determine the interrelationship between agronomic and stem borer resistant traits, (ii) determine the influence of the relationship on selection.…”

Section: Introductionmentioning

confidence: 99%

Correlation between agronomic and stem borer resistant traits in maize: Implications in selection

Oloyede-Kamiyo¹

2015

J. App. Bioscience.

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Objective:The interrelationship between agronomic and resistant traits of two stem borer species, and its influence on selection was studied in a yellow maize population, DMR ESR-Y, at Ibadan between 2009 and 2010. Methodology and results: Two hundred and fifty (250) full-sib progenies of the population with three checks were evaluated. Resistant traits had negative correlations with most agronomic traits including grain yield (GY). GY had significant relationship with days to 50% pollen shed, (DTA) (rg = 0.49**), plant height (PH) (rg = 0.46**) and ear aspect (EA) (rg = -0.98**). Indirect selection of GY via DTA and PH gave gains that were a little lower than direct selection for GY, but they have higher heritability. Indirect selection of stem tunnelling and cob damage through EA would give gains of 150.64 % and 106.94 % respectively. Conclusion and application of results: This result suggested that either days to 50% pollen shed or plant height could be considered in selection for stem borer resistance. Ear aspect is another good criterion to consider instead of cob damage and stem tunnelling to hasten selection. The result indicated that breeders selecting for stem borer resistance and high yield could consider plant height, days to 50% pollen shed, ear aspect and grain yield itself as criteria for selection. In selecting the best genotypes in any crop improvement study therefore, breeders need to consider not only the magnitude of the correlation between pairs of traits, but the desirability of their relationship, ease of measuring the traits, correlated response among the traits, and heritability of the secondary trait selected.

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Direct Response of a Maize Synthetic to Recurrent Selection for Resistance to Stem Borers

Cited by 34 publications

References 31 publications

Response to S1 recurrent selection for resistance to two stem borers, Busseola fusca and Chilo partellus, in two tropical maize populations

Response to S1 recurrent selection for resistance to two stem borers, Busseola fusca and Chilo partellus, in two tropical maize populations

Comparison of two methods of reciprocal recurrent selection in maize (Zea mays L.)

Correlation between agronomic and stem borer resistant traits in maize: Implications in selection

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