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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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Linkage map of T. monococcum (outer circular segments) based on 121 F2 individuals of the ID 49 × ID 69 mapping population, and representation of the introgression lines of T. urartu ID388 in T. monococcum L118 anchored to linkage groups. For each of the seven linkage groups, the map positions of the corresponding molecular markers are reported. Black bars represent single chromosome segments of T. urartu detected in the introgression lines, while bars with the same color point out multiple chromosome segments of T. urartu detected in a single introgression line. Chromosome segments of T. urartu were anchored to ID 49 × ID 69 linkage map of einkorn when segregating in coupling together with specific chromosome Am markers (see the section Materials and Methods). The recent sequencing of the T. urartu genome (Ling et al. 2013) will, in the future, allow a more precise definition of the recombination sites between Au and Am chromosomes.
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fig3: Linkage map of T. monococcum (outer circular segments) based on 121 F2 individuals of the ID 49 × ID 69 mapping population, and representation of the introgression lines of T. urartu ID388 in T. monococcum L118 anchored to linkage groups. For each of the seven linkage groups, the map positions of the corresponding molecular markers are reported. Black bars represent single chromosome segments of T. urartu detected in the introgression lines, while bars with the same color point out multiple chromosome segments of T. urartu detected in a single introgression line. Chromosome segments of T. urartu were anchored to ID 49 × ID 69 linkage map of einkorn when segregating in coupling together with specific chromosome Am markers (see the section Materials and Methods). The recent sequencing of the T. urartu genome (Ling et al. 2013) will, in the future, allow a more precise definition of the recombination sites between Au and Am chromosomes.

Mentions: The segregation of molecular markers concerning F2 plants derived from the cross ID69 × ID49, was processed by the JoinMap 4.0 program (Kyazma B.V., Wageningen, The Netherlands), to map markers used in the characterization of introgression lines (Figure 3). The obtained map contains 155 SSR marker loci without segregation distortion and distributed in seven linkage groups for a total of 984 cM, with an average value of one molecular marker every 6.35 cM. Linkage groups 1 to 7 include, respectively, 22, 28, 21, 13, 29, 16, and 19 SSR loci.


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)

Linkage map of T. monococcum (outer circular segments) based on 121 F2 individuals of the ID 49 × ID 69 mapping population, and representation of the introgression lines of T. urartu ID388 in T. monococcum L118 anchored to linkage groups. For each of the seven linkage groups, the map positions of the corresponding molecular markers are reported. Black bars represent single chromosome segments of T. urartu detected in the introgression lines, while bars with the same color point out multiple chromosome segments of T. urartu detected in a single introgression line. Chromosome segments of T. urartu were anchored to ID 49 × ID 69 linkage map of einkorn when segregating in coupling together with specific chromosome Am markers (see the section Materials and Methods). The recent sequencing of the T. urartu genome (Ling et al. 2013) will, in the future, allow a more precise definition of the recombination sites between Au and Am chromosomes.
© Copyright Policy - open-access
Related In: Results  -  Collection

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

fig3: Linkage map of T. monococcum (outer circular segments) based on 121 F2 individuals of the ID 49 × ID 69 mapping population, and representation of the introgression lines of T. urartu ID388 in T. monococcum L118 anchored to linkage groups. For each of the seven linkage groups, the map positions of the corresponding molecular markers are reported. Black bars represent single chromosome segments of T. urartu detected in the introgression lines, while bars with the same color point out multiple chromosome segments of T. urartu detected in a single introgression line. Chromosome segments of T. urartu were anchored to ID 49 × ID 69 linkage map of einkorn when segregating in coupling together with specific chromosome Am markers (see the section Materials and Methods). The recent sequencing of the T. urartu genome (Ling et al. 2013) will, in the future, allow a more precise definition of the recombination sites between Au and Am chromosomes.
Mentions: The segregation of molecular markers concerning F2 plants derived from the cross ID69 × ID49, was processed by the JoinMap 4.0 program (Kyazma B.V., Wageningen, The Netherlands), to map markers used in the characterization of introgression lines (Figure 3). The obtained map contains 155 SSR marker loci without segregation distortion and distributed in seven linkage groups for a total of 984 cM, with an average value of one molecular marker every 6.35 cM. Linkage groups 1 to 7 include, respectively, 22, 28, 21, 13, 29, 16, and 19 SSR loci.

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