|
|
|
|
|
| Souza,Rosilda Cintra de; Marques,Daniela de Argollo; de Carvalho Filho,Marcel Mamede; Oliveira,Ana Rafaela da Silva; Siqueira,Walter José; Benko-Iseppon,Ana Maria; Brasileiro-Vidal,Ana Christina. |
| Abstract Interspecific hybridization is required for the development of Jatropha curcas L. improved cultivars, due to its narrow genetic basis. The present study aimed to analyze the parental genomic composition of F1 and BC1F1 generations derived from interspecific crosses (J. curcas/J. integerrima and J. curcas/J. multifida) by GISH (Genomic In Situ Hybridization), and the meiotic index and pollen viability of F1 hybrids. In F1 cells from both hybrids, 11 chromosomes of each parental was observed, as expected, but chromosome rearrangement events could be detected using rDNA chromosome markers, suggesting unbalanced cells. In the BC1F1, both hybrids had 22 chromosomes, suggesting that only n = 11 gametes were viable in the next generation. However, GISH... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Interspecific crosses; Jatropha integerrima; J. multifida; Physic nut; Plant breeding. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572019000500302 |
| |
|
|
| Schuck,Mariane Ruzza; Biasi,Luiz Antonio; Mariano,Ada Michele; Lipski,Bernardo; Riaz,Summaira; Walker,Michael Andrew. |
| The objective of this work was to assess the potential of interspecific hybridization of Vitis labruscana and Muscadinia rotundifolia by using artificial cross-pollinations. Microsatellite markers were used to confirm interspecific hybridizations and the identity of the parental genotypes. In crosses in which M. rotundifolia was used as the female parent, no true hybrids were obtained. In the reciprocal crosses, 114 seedlings were identified as true V. labruscana x M. rotundifolia hybrids. Self pollination occurred in direct and in reciprocal crosses. The crossings between 'Bordo' x 'Carlos', 'Magnolia', 'Regale' and' Roanoke', and between' Isabel' x 'Bountiful', 'Carlos', 'Magnolia', 'Regale' and 'Roanoke' were confirmed. The 15 markers evaluated showed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Muscadinia rotundifolia; Vitis labruscana; Hybrid identification; Interspecific crosses; SSRs. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2011001100009 |
| |
|
|
|
