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Crossability of Triticum urartu and Triticum monococcum wheats, homoeologous recombination, and description of a panel of interspecific introgression lines.

Fricano A, Brandolini A, Rossini L, Sourdille P, Wunder J, Effgen S, Hidalgo A, Erba D, Piffanelli P, Salamini F - G3 (Bethesda) (2014)

Bottom Line: In a germplasm collection, rare wild T. urartu lines with the presence of T. monococcum alleles were found.In a test based on 28 interspecific introgression lines, the existence of genetic variation associated with T. urartu chromosome fragments was proven for the seed content of carotenoids, lutein, β-cryptoxanthin, and zinc.The molecular state of available introgression lines is summarized.

View Article: PubMed Central - PubMed

Affiliation: Parco Tecnologico Padano, 26900 Lodi, Italy Department of Agricultural and Environmental Sciences (DiSAA), Università degli Studi di Milano, 20133 Milan, Italy.

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Reconstruction of the parental chromosome contribution to the F2 plants from which the populations B53 (above) and B54 (below) were developed. Parents T. urartu ID1122 and T. monococcum ID396 are in white and black, respectively. Double arrows indicate the borders of chromosome segments to which groups of amplified fragment-length polymorphisms were anchored based on the linkage map of T. monococcum. The chromosome position of the recombination sites detected in this analysis is shown as orange bars.
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fig2: Reconstruction of the parental chromosome contribution to the F2 plants from which the populations B53 (above) and B54 (below) were developed. Parents T. urartu ID1122 and T. monococcum ID396 are in white and black, respectively. Double arrows indicate the borders of chromosome segments to which groups of amplified fragment-length polymorphisms were anchored based on the linkage map of T. monococcum. The chromosome position of the recombination sites detected in this analysis is shown as orange bars.

Mentions: Coupling between Am and Au fragments: this finding was interpreted as if in one of the two gametes that generated the two original hybrid seeds, a crossing-over event in the F1 plants created a T. monococcum-T. urartu mosaic chromosome, bordered by Am and Au polymorphisms. Orange bars in Figure 2 mark these events, as well as segments hosting those groups of bands described in Figure S2.


Crossability of Triticum urartu and Triticum monococcum wheats, homoeologous recombination, and description of a panel of interspecific introgression lines.

Fricano A, Brandolini A, Rossini L, Sourdille P, Wunder J, Effgen S, Hidalgo A, Erba D, Piffanelli P, Salamini F - G3 (Bethesda) (2014)

Reconstruction of the parental chromosome contribution to the F2 plants from which the populations B53 (above) and B54 (below) were developed. Parents T. urartu ID1122 and T. monococcum ID396 are in white and black, respectively. Double arrows indicate the borders of chromosome segments to which groups of amplified fragment-length polymorphisms were anchored based on the linkage map of T. monococcum. The chromosome position of the recombination sites detected in this analysis is shown as orange bars.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4199699&req=5

fig2: Reconstruction of the parental chromosome contribution to the F2 plants from which the populations B53 (above) and B54 (below) were developed. Parents T. urartu ID1122 and T. monococcum ID396 are in white and black, respectively. Double arrows indicate the borders of chromosome segments to which groups of amplified fragment-length polymorphisms were anchored based on the linkage map of T. monococcum. The chromosome position of the recombination sites detected in this analysis is shown as orange bars.
Mentions: Coupling between Am and Au fragments: this finding was interpreted as if in one of the two gametes that generated the two original hybrid seeds, a crossing-over event in the F1 plants created a T. monococcum-T. urartu mosaic chromosome, bordered by Am and Au polymorphisms. Orange bars in Figure 2 mark these events, as well as segments hosting those groups of bands described in Figure S2.

Bottom Line: In a germplasm collection, rare wild T. urartu lines with the presence of T. monococcum alleles were found.In a test based on 28 interspecific introgression lines, the existence of genetic variation associated with T. urartu chromosome fragments was proven for the seed content of carotenoids, lutein, β-cryptoxanthin, and zinc.The molecular state of available introgression lines is summarized.

View Article: PubMed Central - PubMed

Affiliation: Parco Tecnologico Padano, 26900 Lodi, Italy Department of Agricultural and Environmental Sciences (DiSAA), Università degli Studi di Milano, 20133 Milan, Italy.

Show MeSH
Related in: MedlinePlus