13 research outputs found

    Chromosome composition of the intergeneric BC<sub>2</sub> and BC<sub>3</sub> progeny between <i>Saccharum</i> spp. and <i>E</i>. <i>arundinaceus</i>.

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    <p><b>Note:</b> Since small variation of chromosome counts can occur due to the loss or the overlapping of a few chromosomes from the preparation, the modal number of chromosomes and the range of total numbers of chromosomes in 2n cell are presented for the sugarcane clones analyzed. S and E indicate <i>Saccharum</i> spp. chromosome and <i>E</i>. <i>arundinaceus</i> chromosome, respectively. S/E and E/S indicate <i>Saccharum</i> spp. centromere with <i>E</i>. <i>arundinaceus</i> chromosome segment and <i>E</i>. <i>arundinaceus</i> centromere with <i>Saccharum</i> spp. chromosome segment, respectively.</p><p>Chromosome composition of the intergeneric BC<sub>2</sub> and BC<sub>3</sub> progeny between <i>Saccharum</i> spp. and <i>E</i>. <i>arundinaceus</i>.</p

    The intergeneric BC<sub>2</sub> and BC<sub>3</sub> progeny between <i>Saccharum</i> spp. and <i>E</i>. <i>arundinaceus</i>.

    No full text
    <p><b>Note</b>: “YCE” series are the progeny of <i>E</i>. <i>arundinaceus</i>, the other plant materials are the commercial cultivars containing germplasm from <i>Saccharum</i> spp. without contribution from <i>E</i>. <i>arundinaceus</i>.</p><p>The intergeneric BC<sub>2</sub> and BC<sub>3</sub> progeny between <i>Saccharum</i> spp. and <i>E</i>. <i>arundinaceus</i>.</p

    Characterization of Chromosome Inheritance of the Intergeneric BC<sub>2</sub> and BC<sub>3</sub> Progeny between <i>Saccharum</i> spp. and <i>Erianthus arundinaceus</i>

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    <div><p><i>Erianthus arundinaceus</i> (<i>E</i>. <i>arundinaceus</i>) has many desirable agronomic traits for sugarcane improvement, such as high biomass, vigor, rationing ability, tolerance to drought, and water logging, as well as resistance to pests and disease. To investigate the introgression of the <i>E</i>. <i>arundinaceus</i> genome into sugarcane in the higher generations, intergeneric BC<sub>2</sub> and BC<sub>3</sub> progeny generated between <i>Saccharum</i> spp. and <i>E</i>. <i>arundinaceus</i> were studied using the genomic <i>in situ</i> hybridization (GISH) technique. The results showed that the BC<sub>2</sub> and BC<sub>3</sub> generations resulted from n + n chromosome transmission. Furthermore, chromosome translocation occurred at terminal fragments from the <i>E</i>. <i>arundinaceus</i> chromosome in some progeny of <i>Saccharum</i> spp. and <i>E</i>. <i>arundinaceus</i>. Notably, the translocated chromosomes could be stably transmitted to their progeny. This study illustrates the characterization of chromosome inheritance of the intergeneric BC<sub>2</sub> and BC<sub>3</sub> progeny between <i>Saccharum</i> spp. and <i>E</i>. <i>arundinaceus</i>. This work could provide more useful molecular cytogenetic information for the germplasm resources of <i>E</i>. <i>arundinaceus</i>, and may promote further understanding of the germplasm resources of <i>E</i>. <i>arundinaceus</i> for sugarcane breeders to accelerate its progress in sugarcane commercial breeding.</p></div

    GISH analysis of the intergeneric BC<sub>2</sub> progeny between <i>Saccharum</i> spp. and <i>E</i>. <i>arundinaceus</i>. <i>Saccharum</i> spp. chromosomes are visualized in red and <i>E</i>. <i>arundinaceus</i> chromosomes in green.

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    <p>(A) YCE03-01: 2n = 119 = 105S + 14E; (B) YCE03-06: 2n = 119 = 105S + 14E; (C) YCE03-16: 2n = 113 = 100S + 13E; (D) YCE03-168: 2n = 111 = 100S + 10E + E/S; (E) YCE03-218: 2n = 107 = 97S + 10E; (F) YCE03-249: 2n = 110 = 97S + 13E; (G) YCE03-378: 2n = 121 = 104S + 16E + S/E; (H) YCE04-55: 2n = 111 = 98S + 13E; (I) YCE05-179: 2n = 112 = 99S + 13E. The arrowheads in Fig 1D and Fig 1G show the translocated chromosome. S and E indicate <i>Saccharum</i> spp. chromosome and <i>E</i>. <i>arundinaceus</i> chromosome, respectively. S/E and E/S indicate <i>Saccharum</i> spp. centromere with <i>E</i>. <i>arundinaceus</i> chromosome segment and <i>E</i>. <i>arundinaceus</i> centromere with <i>Saccharum</i> spp. chromosome segment, respectively. Scale bars: 5 μm.</p

    The intergeneric BC<sub>2</sub> and BC<sub>3</sub> progeny between <i>Saccharum</i> spp. and <i>E</i>. <i>arundinaceus</i>.

    No full text
    <p><b>Note</b>: “YCE” series are the progeny of <i>E</i>. <i>arundinaceus</i>, the other plant materials are the commercial cultivars containing germplasm from <i>Saccharum</i> spp. without contribution from <i>E</i>. <i>arundinaceus</i>.</p><p>The intergeneric BC<sub>2</sub> and BC<sub>3</sub> progeny between <i>Saccharum</i> spp. and <i>E</i>. <i>arundinaceus</i>.</p

    Chromosome composition of the intergeneric BC<sub>2</sub> and BC<sub>3</sub> progeny between <i>Saccharum</i> spp. and <i>E</i>. <i>arundinaceus</i>.

    No full text
    <p><b>Note:</b> Since small variation of chromosome counts can occur due to the loss or the overlapping of a few chromosomes from the preparation, the modal number of chromosomes and the range of total numbers of chromosomes in 2n cell are presented for the sugarcane clones analyzed. S and E indicate <i>Saccharum</i> spp. chromosome and <i>E</i>. <i>arundinaceus</i> chromosome, respectively. S/E and E/S indicate <i>Saccharum</i> spp. centromere with <i>E</i>. <i>arundinaceus</i> chromosome segment and <i>E</i>. <i>arundinaceus</i> centromere with <i>Saccharum</i> spp. chromosome segment, respectively.</p><p>Chromosome composition of the intergeneric BC<sub>2</sub> and BC<sub>3</sub> progeny between <i>Saccharum</i> spp. and <i>E</i>. <i>arundinaceus</i>.</p

    GISH analysis of the F<sub>1</sub> hybrids and BC<sub>1</sub> progeny.

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    <p><i>Saccharum</i> spp. chromosomes were visualized in red and <i>E</i>. <i>arundinaceus</i> chromosomes in green. (A) YCE 96-66 (F<sub>1</sub>): 29 chromosomes from <i>E</i>. <i>arundinaceus</i> and 40 chromosomes from <i>Saccharum</i> spp.; (B) YCE 01–102 (BC<sub>1</sub>): 22 chromosomes from <i>E</i>. <i>arundinaceus</i> and 96 chromosomes from <i>Saccharum</i> spp.; (C) YCE 01–36 (BC<sub>1</sub>): 36 chromosomes from <i>E</i>. <i>arundinaceus</i>, 96 chromosomes from <i>Saccharum</i> spp. and one terminally translocated chromosome; (D) YCE 01–61 (BC<sub>1</sub>): 31 chromosomes from <i>E</i>. <i>arundinaceus</i> and 85 chromosomes from <i>Saccharum</i> spp.; (E) YCE 01–69 (BC<sub>1</sub>): 31 chromosomes from <i>E</i>. <i>arundinaceus</i> and 88 chromosomes from <i>Saccharum</i> spp.; (F) YCE 01–92 (BC<sub>1</sub>): 35 chromosomes from <i>E</i>. <i>arundinaceus</i>, 95 chromosomes from <i>Saccharum</i> spp. and one terminally translocated chromosome. The arrowhead in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0110390#pone-0110390-g001" target="_blank">Figure 1C</a> and <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0110390#pone-0110390-g001" target="_blank">Figure 1F</a> shows the translocated chromosome. Scale bars: 5 µm.</p

    GISH analysis of the intergeneric BC<sub>3</sub> progeny between <i>Saccharum</i> spp. and <i>E</i>. <i>arundinaceus</i>. <i>Saccharum</i> spp. chromosomes are visualized in red and <i>E</i>. <i>arundinaceus</i> chromosomes in green.

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    <p>(A) YCE05-64: 2n = 118 = 107S + 6E + 2(E/S)+3(S/E); (B) YCE05-150: 2n = 116 = 108S + 8E; (C) YCE06-61: 2n = 114 = 107S + 7E; (D) YCE06-63: 2n = 105 = 98S + 7E; (E) YCE06-92: 2n = 118 = 109S + 7E + 2(E/S); (F) YCE06-111: 2n = 108 = 103S + 4E + E/S; (G) YCE06-140: 2n = 112 = 106S + 5E + S/E; (H) YCE06-166: 2n = 110 = 105S + 5E. The arrowheads in Fig 2A, Fig 2E, Fig 2F and Fig 2G show the translocated chromosome. S and E indicate <i>Saccharum</i> spp. chromosome and <i>E</i>. <i>arundinaceus</i> chromosome, respectively. S/E and E/S indicate <i>Saccharum</i> spp. centromere with <i>E</i>. <i>arundinaceus</i> chromosome segment and <i>E</i>. <i>arundinaceus</i> centromere with <i>Saccharum</i> spp. chromosome segment, respectively. Scale bars: 5 μm.</p

    Chromosome composition of F<sub>1</sub> hybrids and BC<sub>1</sub> progeny.

    No full text
    <p><b>Note:</b> The modal number of chromosomes is presented for the sugarcane clones analysed, since small variation of chromosome counts can occur due to the loss or the overlapping of a few chromosomes from the preparation.</p><p>Chromosome composition of F<sub>1</sub> hybrids and BC<sub>1</sub> progeny.</p
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