Genetic parameters and paternity test in progenies of Euterpeoleracea originated from spontaneous hybridization with Euterpeedulis in subtropical climate
The objectives of this study were to analyze the mating system and the distribution of molecular variability among and within three groups of open pollinated progenies of Euterpe oleracea, in addition to performing a paternity test to identify the male parents and to further the genetic certification of the bifoliolate seedlings. With this purpose, we applied six microsatellite loci markers to 306 samples. The progeny groups are the result of a mixed breeding system, with no crosses between relatives, with allogamy (tm and ts = 1), and self-fertilization correlation (rt) of 0.110. Different degrees of kinship were found (rp), with complete siblings between 15.5 a 26,1%. Paternity was assigned to 51% and 24% of the samples with 80 % and 95% confidence, respectively. Twenty-two pollen donors and one self-fertilization were identified. We also found that the bifoliolate morphotype does not assure the occurrence of intraspecific crosses, since four progenies were identified as interspecific hybrids. A mean from 7 a 12.3 to alleles per locus was detected. The average heterozygosity was observed between 0.382 and 0.898 and the expected heterozygosity between 0.354 and 0.693. The fixation index was estimated between -0.053 and -0.319. The variation between groups was 5% and within groups was 95%. The results indicate good prospects for future work related to the prediction of genetic gains from the selection among and within the progeny groups.
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Facultad de Ciencias Agrarias y Forestales de la Universidad Nacional de La Plata
2020
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Santos, Jussara Fernanda Mariguele, Keny Henrique Pereira, Adriana Zambonim, Fabio Martinho Ventirieri, Giorgini Augusto |
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Santos, Jussara Fernanda Mariguele, Keny Henrique Pereira, Adriana Zambonim, Fabio Martinho Ventirieri, Giorgini Augusto Genetic parameters and paternity test in progenies of Euterpeoleracea originated from spontaneous hybridization with Euterpeedulis in subtropical climate |
| author_facet |
Santos, Jussara Fernanda Mariguele, Keny Henrique Pereira, Adriana Zambonim, Fabio Martinho Ventirieri, Giorgini Augusto |
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Santos, Jussara Fernanda |
| title |
Genetic parameters and paternity test in progenies of Euterpeoleracea originated from spontaneous hybridization with Euterpeedulis in subtropical climate |
| title_short |
Genetic parameters and paternity test in progenies of Euterpeoleracea originated from spontaneous hybridization with Euterpeedulis in subtropical climate |
| title_full |
Genetic parameters and paternity test in progenies of Euterpeoleracea originated from spontaneous hybridization with Euterpeedulis in subtropical climate |
| title_fullStr |
Genetic parameters and paternity test in progenies of Euterpeoleracea originated from spontaneous hybridization with Euterpeedulis in subtropical climate |
| title_full_unstemmed |
Genetic parameters and paternity test in progenies of Euterpeoleracea originated from spontaneous hybridization with Euterpeedulis in subtropical climate |
| title_sort |
genetic parameters and paternity test in progenies of euterpeoleracea originated from spontaneous hybridization with euterpeedulis in subtropical climate |
| description |
The objectives of this study were to analyze the mating system and the distribution of molecular variability among and within three groups of open pollinated progenies of Euterpe oleracea, in addition to performing a paternity test to identify the male parents and to further the genetic certification of the bifoliolate seedlings. With this purpose, we applied six microsatellite loci markers to 306 samples. The progeny groups are the result of a mixed breeding system, with no crosses between relatives, with allogamy (tm and ts = 1), and self-fertilization correlation (rt) of 0.110. Different degrees of kinship were found (rp), with complete siblings between 15.5 a 26,1%. Paternity was assigned to 51% and 24% of the samples with 80 % and 95% confidence, respectively. Twenty-two pollen donors and one self-fertilization were identified. We also found that the bifoliolate morphotype does not assure the occurrence of intraspecific crosses, since four progenies were identified as interspecific hybrids. A mean from 7 a 12.3 to alleles per locus was detected. The average heterozygosity was observed between 0.382 and 0.898 and the expected heterozygosity between 0.354 and 0.693. The fixation index was estimated between -0.053 and -0.319. The variation between groups was 5% and within groups was 95%. The results indicate good prospects for future work related to the prediction of genetic gains from the selection among and within the progeny groups. |
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Facultad de Ciencias Agrarias y Forestales de la Universidad Nacional de La Plata |
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2020 |
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https://revistas.unlp.edu.ar/revagro/article/view/10187 |
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rev-revagro-ar-article-101872020-07-10T22:16:16Z Genetic parameters and paternity test in progenies of Euterpeoleracea originated from spontaneous hybridization with Euterpeedulis in subtropical climate Parâmetros genéticos e teste de paternidade em progênies de Euterpe oleracea produto da hibridação espontânea com Euterpe edulis em clima subtropical Santos, Jussara Fernanda Mariguele, Keny Henrique Pereira, Adriana Zambonim, Fabio Martinho Ventirieri, Giorgini Augusto genetically improved açaí juçara microsatellites paternity test open pollination açaí melhorado microssatélites teste paternidade polinização aberta juçara The objectives of this study were to analyze the mating system and the distribution of molecular variability among and within three groups of open pollinated progenies of Euterpe oleracea, in addition to performing a paternity test to identify the male parents and to further the genetic certification of the bifoliolate seedlings. With this purpose, we applied six microsatellite loci markers to 306 samples. The progeny groups are the result of a mixed breeding system, with no crosses between relatives, with allogamy (tm and ts = 1), and self-fertilization correlation (rt) of 0.110. Different degrees of kinship were found (rp), with complete siblings between 15.5 a 26,1%. Paternity was assigned to 51% and 24% of the samples with 80 % and 95% confidence, respectively. Twenty-two pollen donors and one self-fertilization were identified. We also found that the bifoliolate morphotype does not assure the occurrence of intraspecific crosses, since four progenies were identified as interspecific hybrids. A mean from 7 a 12.3 to alleles per locus was detected. The average heterozygosity was observed between 0.382 and 0.898 and the expected heterozygosity between 0.354 and 0.693. The fixation index was estimated between -0.053 and -0.319. The variation between groups was 5% and within groups was 95%. The results indicate good prospects for future work related to the prediction of genetic gains from the selection among and within the progeny groups. O objetivo deste estudo foi avaliar o sistema de fecundação e a distribuição da variabilidade molecular entre e dentro de três grupos de progênies de polinização aberta de Euterpe oleracea, além de realizar um teste depaternidade para identificação dos genitores masculinos e promover a certificação genética das plântulasbífolioladas. Para tal, foram utilizados seis loci microssatélites em 306 amostras. Os grupos de progênies sãoresultado de um sistema misto de fecundação, com ausência de cruzamentos entre aparentados, sendoalógamos (tm e ts = 1,0), com correlação de autofecundação (rt) igual a 0,110. Foram constatados diferentesgraus de parentescos (rp), entre 15,5 a 26,1% de irmãos completos. A paternidade foi atribuída para 51% e 24% das amostras, com 80 e 95% de confiança respectivamente. Foram identificados 22 doadores de pólen e uma autofecundação, verificou-se que o morfotipo bífoliolado não é garantia de cruzamento intraespecifico, já que quatro progênies foram identificadas como híbridos interespecíficos. Foram detectados em média 7 a 12,3 alelos por locus e uma heterozigosidade média observada entre 0,382 a 0,898 e a esperada entre 0,354 a 0,693. O índice de fixação foi entre -0,053 a -0,319. A variação entre os grupos foi de 5%, sendo 95% dentro deles. Os resultados indicam boas perspectivas para realização de trabalhos futuros relacionados à predição de ganhos genéticos a partir da seleção entre e dentro dos grupos de progênies. Facultad de Ciencias Agrarias y Forestales de la Universidad Nacional de La Plata 2020-07-10 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo evaluado por pares Peer reviewed article application/pdf https://revistas.unlp.edu.ar/revagro/article/view/10187 10.24215/16699513e036 Journal of the Agronomy College; Vol. 119 No. 1 (2020): Revista de la Facultad de Agronomia; 036 Revista de la Facultad de Agronomía; Vol. 119 Núm. 1 (2020): Revista de la Facultad de Agronomia; 036 Journal de la Faculté d'Agronomie; Vol. 119 No. 1 (2020): Revista de la Facultad de Agronomia; 036 Revista da Faculdade de Agronomia; v. 119 n. 1 (2020): Revista de la Facultad de Agronomia; 036 1669-9513 0041-8676 spa https://revistas.unlp.edu.ar/revagro/article/view/10187/9009 |