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Distinct small RNA populations act antagonistically in formation of heterosis

ABSTRACT: This research reports the analysis of sRNAs in 14 and 7 inbred lines from a breeding population. We analyzed the contribution of sRNAs to the formation of heterosis via integrative association analysis with field data of 98 hybrids generated from the set of inbred lines. Our results indicate a contribution of sRNAs to heterosis. We were able to identify different sets of sRNAs associated with heterosis with distinct length and genome distribution patterns. Analysis of sRNA contribution to the formation of heterosis in maize by an association study in a breeding population.

ORGANISM(S): Zea mays

SUBMITTER: Stefan Scholten

PROVIDER: E-GEOD-51662 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Parental Expression Variation of Small RNAs Is Negatively Correlated with Grain Yield Heterosis in a Maize Breeding Population.

Seifert Felix F Thiemann Alexander A Grant-Downton Robert R Edelmann Susanne S Rybka Dominika D Schrag Tobias A TA Frisch Matthias M Dickinson Hugh G HG Melchinger Albrecht E AE Scholten Stefan S

Frontiers in plant science 20180130

Heterosis refers to a quantitative phenomenon in which F1 hybrid trait values exceed the mean of the parental values in a positive direction. Generally, it is dependent on a high degree of heterozygosity, which is maintained in hybrid breeding by developing parental lines in separate, genetically distinct heterotic groups. The mobility of small RNAs (sRNAs) that mediate epigenetic regulation of gene expression renders them promising candidates for modulating the action of combined diverse genome ...[more]

PMID: 29441076

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Distinct small RNA populations act antagonistically in formation of heterosis

Project description:This research reports the analysis of sRNAs in 14 and 7 inbred lines from a breeding population. We analyzed the contribution of sRNAs to the formation of heterosis via integrative association analysis with field data of 98 hybrids generated from the set of inbred lines. Our results indicate a contribution of sRNAs to heterosis. We were able to identify different sets of sRNAs associated with heterosis with distinct length and genome distribution patterns.

2016-10-24 | GSE51662 | GEO

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Heterosis-associated gene expression in maize (Zea mays L.) embryo and endosperm 6 days after pollination

Project description:We demonstrated the manifestation of heterosis in hybrid maize embryo and endosperm tissue six days after fertilization in crosses of several inbred lines. Here we analyzed heterosis-associated gene expression pattern in these tissues of reciprocal crosses of two european maize inbred line combinations. Differences in gene expression were analyzed with custom microarrays by a combined approach of suppression subtractive hybridization and microarray hybridizations

2009-08-28 | GSE17821 | GEO

Heterosis

Project description:This SuperSeries is composed of the following subset Series: GSE3733: Modes of gene action observed in a global comparison of gene expression in a maize F1 hybrid and its inbred parents GSE4473: Heterosis(II, Low scan) Keywords: SuperSeries Refer to individual Series

2010-06-26 | E-GEOD-4477 | biostudies-arrayexpress

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