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2021
DOI: 10.3389/fpls.2021.753241
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Continuous Mapping Identifies Loci Associated With Weevil Resistance [Cosmopolites sordidus (Germar)] in a Triploid Banana Population

Abstract: The first step toward marker-assisted selection is linking the phenotypes to molecular markers through quantitative trait loci (QTL) analysis. While the process is straightforward in self-pollinating diploid (2x) species, QTL analysis in polyploids requires unconventional methods. In this study, we have identified markers associated with weevil Cosmopolites sordidus (Germar) resistance in bananas using 138 triploid (2n = 3x) hybrids derived from a cross between a tetraploid “Monyet” (2n = 4x) and a 2x “Kokopo”… Show more

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Cited by 6 publications
(16 citation statements)
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“…This study used F 1 progeny from a cross between Monyet (ITC1179) and Kokopo (ITC1233) [28]. The female parent, Monyet, a tetraploid (2n = 4x = 44) genotype of the zebrina subspecies that is also resistant to weevils (Cosmopolites sordidus (Germar)) and fusarium wilt race 1 [28,29], was one of the few M. acuminata genotypes identified as mildly resistant to BXW [18].…”
Section: Plant Materialsmentioning
confidence: 99%
See 2 more Smart Citations
“…This study used F 1 progeny from a cross between Monyet (ITC1179) and Kokopo (ITC1233) [28]. The female parent, Monyet, a tetraploid (2n = 4x = 44) genotype of the zebrina subspecies that is also resistant to weevils (Cosmopolites sordidus (Germar)) and fusarium wilt race 1 [28,29], was one of the few M. acuminata genotypes identified as mildly resistant to BXW [18].…”
Section: Plant Materialsmentioning
confidence: 99%
“…This study used F 1 progeny from a cross between Monyet (ITC1179) and Kokopo (ITC1233) [28]. The female parent, Monyet, a tetraploid (2n = 4x = 44) genotype of the zebrina subspecies that is also resistant to weevils (Cosmopolites sordidus (Germar)) and fusarium wilt race 1 [28,29], was one of the few M. acuminata genotypes identified as mildly resistant to BXW [18]. Monyet is recorded in the Musa International Transit Center as a diploid (https://www.crop-diversity.org/mgis/accession/01BEL0841179 (accessed on 6 November 2023)), but the ploidy analysis of the Monyet plants at the International Institute of Tropical Agriculture (IITA) in Uganda found the plants to be tetraploid (4x) [28,29].…”
Section: Plant Materialsmentioning
confidence: 99%
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“…Usually, polyploids have fast growth, huge organs, high yield, higher content of active ingredients, and higher resistance to adversity. In addition, triploids usually have the advantage of being seedless or having fewer seeds, so from the last century to the present, breeders have used polyploid breeding to produce a large number of varieties [13][14][15][16][17]. Moreover, polyploid breeding is now widely used in ornamentals, such as triploid and tetraploid lilies [18,19], triploid and tetraploid tulips [15], triploid narcissus [20], triploid and tetraploid Paeonia [21], tetraploid Magnolia × soulangeana [7], etc.…”
Section: Introductionmentioning
confidence: 99%
“…DArTseq, a powerful genotyping-by-sequencing (GBS) approach to generate high-density linkage maps, has been successfully used for genotyping large segregating populations of diploid and triploid Musa spp. [ 54 , 55 , 56 ].…”
Section: Introductionmentioning
confidence: 99%