SSR markers to detect gene flow from upland to mocó cotton

Dantas, Ana Carolina Assis; Barroso, Paulo Augusto Vianna; Hoffmann, Lúcia Vieira; Alves, Milena Ferreira; Andrade, F. P. de

doi:10.1590/s1806-66902012000100020

Cited by 2 publications

(3 citation statements)

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“…Microsatellite or Simple Sequence Repeat (SSR) markers have been widely used to obtain genetic maps (Zhang et al 2014), genetic characterization of germplasm (Bertini et al 2005, Almeida et al 2009), genetic of nature populations (Alves et al 2013), detect gene flow (Dantas et al 2012), correlation between traits performance and SSR markers (Zhen et al 2009, Xiao et al 2010). …”

Section: Introductionmentioning

confidence: 99%

Genetic characterization of cotton landraces found in the Paraíba and Rio Grande do Norte states

Menezes

Hoffmann

Barroso

2015

Crop Breed. Appl. Biotechnol.

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Section: Introductionmentioning

confidence: 99%

Genetic characterization of cotton landraces found in the Paraíba and Rio Grande do Norte states

Menezes

Hoffmann

Barroso

2015

Crop Breed. Appl. Biotechnol.

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“…Although gene flow could not be detected between cotton populations in northeast Brazil using molecular markers [2], natural hybrids between G. hirsutum and G. barbadense may occur since they are sexually…”

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confidence: 95%

“…There are two main mechanisms to demonstrate that gene flow occurs. The first is to search for morphological characteristics or molecular markers typical of the donor genotype among the progenies of the putative receptor genotypes [2], and the second is to find naturally occurring hybrids.…”

mentioning

confidence: 99%

Fitness of Hybrids between Gossypium barbadense and Upland Cotton and Resistance to Pectinophora gossypiella and Alabama argillacea

Hoffmann¹,

Barroso²,

Sousa³

et al. 2013

JLS

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Measuring fitness is essential for understanding the potential impacts of hybridisation between transgenic crops and their wild relatives. Transgenic Cry1Ac cotton Gossypium hirsutum and G. barbadense hybridise, the latter being valued as backyard cotton and an important genetic resource. G. barbadense was outcrossed to G. hirsutum containing the gene Cry1Ac and the isoline and the offspring evaluated for fitness as a measure of resistance to common pests and other growth parameters. Resistance to Pectinophora gossypiella and Alabama argillacea were greater in transgenic plants. Number of seeds per plant was higher in the F 1 hybrids and G. hirsutum, F 2 populations were intermediary; G. barbadense produced the least seeds per plant during the period of analysis. Anthesis of the first flower and opening of the first boll occurred earlier for G. hirsutum and F 1 hybrids than F 2 ; latest for G.barbadense. The observed performance of resistance to the worms in the hybrids suggests that among F 1 and F 2 populations transgenic hybrids may exhibit a competitive advantage over non-transgenic plants as a result of gene flow.

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SSR markers to detect gene flow from upland to mocó cotton

Cited by 2 publications

References 11 publications

Genetic characterization of cotton landraces found in the Paraíba and Rio Grande do Norte states

Genetic characterization of cotton landraces found in the Paraíba and Rio Grande do Norte states

Fitness of Hybrids between Gossypium barbadense and Upland Cotton and Resistance to Pectinophora gossypiella and Alabama argillacea

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