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| SALES, A. C.; SANTOS, V. da S.; SAMPAIO FILHO, J. S.; CAMPOS, M. C.; SANTOS JUNIOR, A. M. P. dos; OLIVEIRA, L. A. de. |
| O amido possui inúmeras aplicações nas indústrias de papel e celulose, petrolífera, mineração, de alimentos, farmacêutica, e outras (CARDOSO & SOUZA, 2002). A indústria modifica o amido, dando-lhe diferentes aplicações. Existe também a possibilidade de a própria planta produzir amido diferenciado. Um exemplo é o amido ceroso ou waxy, descoberto em mandioca em uma planta resultante de autofecundação (CEBALLOS et al., 2007). O amido ceroso distingue-se do comum (nativo) por ter no máximo 5% de amilose, enquanto o amido comum de mandioca tem em torno de 20% de amilose e 80% de amilopectina. Amidos com baixos teores de amilose são importantes, por exemplo, na indústria alimentícia, por não sofrerem retrogradação, isto é, perda de água no processo de... |
| Tipo: Artigo em anais de congresso (ALICE) |
Palavras-chave: Mandioca; Amido; Autofecundação; Método de melhoramento; Cassava; Starch; Selfing. |
| Ano: 2013 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/976808 |
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| Becheler, Ronan; Masson, Jean-pierre; Arnaud-haond, Sophie; Halkett, Fabien; Mariette, Stephanie; Guillemin, Marie-laure; Valero, Myriam; Destombe, Christophe; Stoeckel, Solenn. |
| Partial clonality is commonly used in Eukaryotes and has large consequences for their evolution and ecology. Assessing accurately the relative importance of clonal versus sexual reproduction matters for studying and managing such species. Here, we proposed a Bayesian approach, ClonEstiMate, to infer rates of clonality c from populations sampled twice over a short time interval, ideally one generation time. The method relies on the likelihood of the transitions between genotype frequencies of ancestral and descendent populations, using an extended Wright-Fisher model explicitly integrating reproductive modes. Our model provides posterior probability distribution of inferred c, given the assumed rates of mutation, as well as inbreeding and selfing when... |
| Tipo: Text |
Palavras-chave: Inbreeding; Instantaneous inference; Population genetics model; Rate of asexuality; Selfing. |
| Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00390/50187/50810.pdf |
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| Cardoso,Antonio Ismael Inácio. |
| The strategy for breeding F1 hybrid squash is to develop parental lines through self-pollination. However, it increases plant mean homozygosis, which is not the natural genetic state of a cross-pollinated species, and can cause "inbreeding depression". The objective of this work was to evaluate this depression with sucessive generations of self-pollination (without selection) in Cucurbita moschata, cv. Piramoita. Populations were obtained from lines with one to four generations of self-pollination (obtained by the SSD method), from the original cv. Piramoita (population S0). Randomized blocks were used with five treatments (different generations of self-pollination - S0 to S4), six replicates and five plants per plot. Regression analysis was made by the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cucurbita moschata; Cucurbits; Selfing. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162004000200016 |
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| LIRA JÚNIOR,JOSÉ SEVERINO DE; BRUCKNER,CLÁUDIO HORST; CARNEIRO,PEDRO CRESCÊNCIO SOUZA. |
| ABSTRACT The methodology of self-pollination of passion fruit flowers at anthesis after stigma excision was proposed. This method was compared with self-pollination procedures at anthesis and at the stage of flower bud. Two genotypes (M7 and N9), propagated by cuttings were studied. Self-pollinations were performed at 1 pm, 1 pm and 5 pm or 5 pm. Fruit set (%), fruit mass (g), pulp mass (g), pulp/fruit ratio and seed number per fruit were evaluated and compared to fruits derived from M7 x N9 and N9 x M7 crosses. No fruit set was obtained from self-pollination at anthesis, which confirms the self-incompatibility of both genotypes. Self-pollination after stigma excision was the best procedure, reaching average fruit set of 73.61 % (13 hours) and 81.94 %... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Passiflora edulis; Pollination; Selfing; Endogamous progenies. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452016000400804 |
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| PINHO, E.V. de R.Von; PINHO, R.G. Von; CICERO, S.M.. |
| Em campos de producao de sementes hibridas de milho, a remocao incompleta dos pendoes liberadores de polen do parental femea proporciona a ocorrencia de autofecundacao, principal causa de contaminacao genetica dos lotes. O trabalho teve como objetivo levantar caracteristicas morfologicas que pudessem ser utilizadas como marcadores para a identificacao de sementes provenientes do parental femea autofecundado misturadas em lotes de sementes hibridas. Foram produzidas sementes dos hibridos C 901, C 808A, C 425 e C 701, sendo o primeiro um hibrido simples; o segundo, triplo; e os dois ultimos, duplos; e sementes dos parentais - femeas autofecundados. Avaliacoes foram realizadas por diferentes avaliadores no estadio de plantula, em plantas com cinco a sete... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Autofecundacao; Qualidade; Contaminacao; Selfing; Quality; Contamination. |
| Ano: 1997 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/100215 |
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