Registration of Mp313E Parental Line of Maize

Scott, Gene E.; Zummo, N.

doi:10.2135/cropsci1990.0011183x003000060080x

Cited by 94 publications

(57 citation statements)

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“…Aflatoxin concentration was lowest in Mp717, Mp313E, and Mp719, three lines that were developed and released as sources of resistance to A. flavus infection and aflatoxin accumulation by USDA-ARS [13,16,17]. NC388 also accumulated a low level of aflatoxin and did not differ significantly from Mp717 in mean aflatoxin concentration.…”

Section: Resultsmentioning

confidence: 95%

“…Three of the parental inbred lines were developed and released by USDA-ARS at Mississippi State as sources of resistance to A. flavus infection and aflatoxin accumulation: Mp313E, Mp717, and Mp719 [13,16,17]. Mp494, NC388, and CML322 had exhibited resistance, and Va35, T173, B73, and PHW79, susceptibility in field trials conducted at Mississippi State [12,18,20].…”

Section: Methodsmentioning

confidence: 99%

“…One such program was initiated by the U.S. Department of Agriculture's Agricultural Research Service at Mississippi State, Mississippi. The first line released from this program for resistance to A.flavus infection and aflatoxin accumulation was Mp313E [13]. Five additional lines were released subsequently: Mp420, Mp715, Mp717, Mp718, and Mp719 [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

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Aflatoxin Accumulation in a Maize Diallel Cross

Williams

Windham

2015

Agriculture

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Aflatoxins, produced by the fungus Aspergillus flavus, occur naturally in maize. Contamination of maize grain with aflatoxin is a major food and feed safety problem and greatly reduces the value of the grain. Plant resistance is generally considered a highly desirable approach to reduction or elimination of aflatoxin in maize grain. In this investigation, a diallel cross was produced by crossing 10 inbred lines with varying degrees of resistance to aflatoxin accumulation in all possible combinations. Three lines that previously developed and released as sources of resistance to aflatoxin accumulation were included as parents. The 10 parental inbred lines and the 45 single crosses making up the diallel cross were evaluated for aflatoxin accumulation in field tests conducted in 2013 and 2014. Plants were inoculated with an A. flavus spore suspension seven days after silk emergence. Ears were harvested approximately 60 days later and concentration of aflatoxin in the grain determined. Parental inbred lines Mp717, Mp313E, and Mp719 exhibited low levels (3-12 ng/g) of aflatoxin accumulation. In the diallel analysis, both general and specific combining ability were significant sources of variation in the inheritance of resistance to aflatoxin accumulation. General combining ability effects for reduced aflatoxin accumulation were greatest for Mp494, Mp719, and Mp717. These lines should be especially useful in breeding for resistance to aflatoxin accumulation. Breeding strategies, such as reciprocal recurrent selection, would be appropriate.

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Section: Resultsmentioning

confidence: 95%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Aflatoxin Accumulation in a Maize Diallel Cross

Williams

Windham

2015

Agriculture

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“…To facilitate evaluation of the aflatoxin-reduction potential of the IITA-SRRC lines, observations were made in comparison to other known aflatoxin-resistant releases also tested in these trials: Mp 420 [13], Mp313E [14], Mp 715 [15], Mp717 [16], Mp 718 [17], Mp719 [17] (Mp lines developed at ARS-Mississippi State University), and T115 [9]. Five IITA-SRRC germplasm lines were screened for aflatoxin accumulation levels for the first time in the U.S. in 2010 against 18 other maize inbred lines (Table 1).…”

Section: Resultsmentioning

confidence: 99%

Evaluation of African-Bred Maize Germplasm Lines for Resistance to Aflatoxin Accumulation

et al. 2016

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Abstract:Aflatoxins, produced by the fungus Aspergillus flavus, contaminate maize grain and threaten human food and feed safety. Plant resistance is considered the best strategy for reducing aflatoxin accumulation. Six maize germplasm lines, TZAR101-TZAR106, were released by the International Institute of Tropical Agriculture-Southern Regional Research Center (IITA-SRRC) maize breeding collaboration for use in African National Programs and U.S. maize breeding programs. The present investigation was conducted to evaluate aflatoxin reduction by these lines in a U.S. environment. Results demonstrate significant aflatoxin reduction by IITA-SRRC lines in a U.S. aflatoxin-conducive environment (at Mississippi State University). Further testing in different locations and environments is needed to further evaluate the potential usefulness of these germplasm lines.

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“…Since the early 1970s breeding efforts to lower grain aflatoxin accumulation have resulted in the release of four Mississippi lines Mp313E, Mp420, Mp715 and Mp717 [9][10][11]. Two recently released lines, Mp718 and Mp719 were derived from an Mp715 by Va35 cross resulting in resistant material that is 13 days earlier than the resistance source, Mp715 [12].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Maize Germplasm for Resistance to Aflatoxin Accumulation

2012

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Aflatoxin contamination of maize grain threatens human food and animal feed safety. Breeding for reduced grain aflatoxin accumulation is one of the best strategies presently available to lower grain aflatoxin accumulation. Previously identified sources of germplasm with reduced grain aflatoxin accumulation are excessively tall and late maturing. The objective of this research was to screen germplasm and identify potential sources of aflatoxin resistance. KO679Y and CUBA117:S15-101-001-B-B-B-B inbreds were evaluated for aflatoxin accumulation alongside resistant and susceptible checks with both performing well. These two lines were also evaluated in various crosses. KO679Y performed especially well in crosses with Mp494 and Mp717, resulting in low ear rot and very low aflatoxin levels, but not well in other crosses. A breeding cross including CUBA117:S15-101-001-B-B-B-B as a parent accumulated low levels of aflatoxin both years it was evaluated. Lines resulting from these crosses are being advanced for further evaluation and improvement. KO679Y and CUBA117:S15-101-001-B-B-B-B may prove useful for breeders seeking germplasm sources for ear rot and mycotoxin reduction, especially KO679Y which matures a week earlier and is approximately 25% shorter than current lines resistant to grain aflatoxin accumulation.

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Registration of Mp313E Parental Line of Maize

Cited by 94 publications

References 0 publications

Aflatoxin Accumulation in a Maize Diallel Cross

Aflatoxin Accumulation in a Maize Diallel Cross

Evaluation of African-Bred Maize Germplasm Lines for Resistance to Aflatoxin Accumulation

Evaluation of Maize Germplasm for Resistance to Aflatoxin Accumulation

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