9 research outputs found
Diversity of Pod Shape in Pisum
The seed-containing pod is the defining structure of plants in the legume family, yet pods exhibit a wide range of morphological variation. Within a species pod characters are likely to be correlated with reproductive strategy, and within cultivated forms will correspond to aspects of yield determination and/or end use. Here variation in pod size, described as pod length: pod width ratio, has been analyzed in pea germplasm represented by 597 accessions. This pod size variation is discussed with respect to population structure and to known classical pod morphology mutants. Variability of the pod length: width ratio can be explained by allelic variation at two genetic loci that may correspond to organ-specific negative regulators of growth
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28 avril 19391939/04/28 (A68).Appartient à l’ensemble documentaire : PoitouCh
Additional file 6: Table S5. of A bulk segregant transcriptome analysis reveals metabolic and cellular processes associated with Orange allelic variation and fruit ĂŽË›-carotene accumulation in melon fruit
List of genes exhibited significant up or down regulation in two fruit developmental stages. (XLSX 10Ă‚Â kb
Additional file 5: Table S4. of A bulk segregant transcriptome analysis reveals metabolic and cellular processes associated with Orange allelic variation and fruit ĂŽË›-carotene accumulation in melon fruit
List of 79, 805, 37 and 122 genes that were differentially expressed at 10, 20, 30 DAA, and the mature stage, respectively. (XLSX 162Ă‚Â kb
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Population genomic analysis of Aegilops tauschii identifies targets for bread wheat improvement.
Aegilops tauschii, the diploid wild progenitor of the D subgenome of bread wheat, is a reservoir of genetic diversity for improving bread wheat performance and environmental resilience. Here we sequenced 242 Ae. tauschii accessions and compared them to the wheat D subgenome to characterize genomic diversity. We found that a rare lineage of Ae. tauschii geographically restricted to present-day Georgia contributed to the wheat D subgenome in the independent hybridizations that gave rise to modern bread wheat. Through k-mer-based association mapping, we identified discrete genomic regions with candidate genes for disease and pest resistance and demonstrated their functional transfer into wheat by transgenesis and wide crossing, including the generation of a library of hexaploids incorporating diverse Ae. tauschii genomes. Exploiting the genomic diversity of the Ae. tauschii ancestral diploid genome permits rapid trait discovery and functional genetic validation in a hexaploid background amenable to breeding
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Population genomic analysis of Aegilops tauschii identifies targets for bread wheat improvement
Aegilops tauschii, the diploid wild progenitor of the D subgenome of bread wheat, is a reservoir of genetic diversity for improving bread wheat performance and environmental resilience. Here we sequenced 242 Ae. tauschii accessions and compared them to the wheat D subgenome to characterize genomic diversity. We found that a rare lineage of Ae. tauschii geographically restricted to present-day Georgia contributed to the wheat D subgenome in the independent hybridizations that gave rise to modern bread wheat. Through k-mer-based association mapping, we identified discrete genomic regions with candidate genes for disease and pest resistance and demonstrated their functional transfer into wheat by transgenesis and wide crossing, including the generation of a library of hexaploids incorporating diverse Ae. tauschii genomes. Exploiting the genomic diversity of the Ae. tauschii ancestral diploid genome permits rapid trait discovery and functional genetic validation in a hexaploid background amenable to breeding