2024
DOI: 10.1007/s10681-023-03280-4
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Chaotic spindles causes abnormal chromosome behavior in an interspecific sexual hybrid of Urochloa

Gabriel Luiz de Melo Sales,
Cacilda Borges do Valle,
Andréa Beatriz Diverio Mendes

Abstract: Intra-and interspeci c hybridization in the genus Urochloa is complex due to apomixis and polyploidy. Such barriers can be overcome by crossing apomictic tetraploid plants as pollen donors with arti cial tetraploid sexual plants as female parents. Another barrier is the incompatibility between the genomes of the different species used in hybridization. Since the meiotic behavior is a good indication of a nity between genomes in a hybrid, the present study analyzed the meiotic behavior of a sexual polyploid int… Show more

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