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2006
DOI: 10.12702/1984-7033.v06n01a05
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Prediction of genetic variability through AFLP-based measure of genetic distance in soybean

Abstract: -Molecular markers have been used to predict the genetic variance of segregating soybean populations by measuring the genetic distance between parents. For this purpose we analyzed the genetic distance among six pairwise combinations of four soybean lines grown in Southern Brazil. The AFLP-based distances (AFD) were estimated with 21 primer-pair combinations. Additive genetic variance (D) was estimated in 100 advanced inbred lines for each cross for seven traits, including grain yield, for four sowing dates, a… Show more

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Cited by 9 publications
(14 citation statements)
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“…The highest genetic distance value was estimated for the pairs PI417360/Garantia and PI417360/ Conquista (0.85), followed by PI417360/MSOY8400 and PI417360/B3PTA216-1-9 (0.80), with averages of protein content equal to 41,01%/38,82%, 4 1 , 0 1 % / 3 8 , 5 4 % , 4 1 , 0 1 % / 3 7 , 1 9 % , a n d 41,01%/43,48%, respectively. (Bonato et al, 2006). Among all combinations of accessions, eight pairs of genotypes had genetic distances greater than 0.60 and protein contents greater than or equal to 43%: BARC-8/CS3032PTA276-1-2 (0.71); BARC-8/CS3032PTA190-5-1 (0.71); BARC-8/ CS3032PTA276-3-4 (0.71); CS3032PTA276-1-2/ B3PTA382-2-10 (0.62); B3PTA382-2-10/ CS3032PTA276-3-4 (0.62); B3PTA382-2-10/ CS3032PTA190-5-1 (0.62); B3PTA216-1-9/ CS3032PTA276-1-2 (0.61); and B3PTA216-1-9/ CS3032PTA276-3-4 (0.61).…”
Section: Resultsmentioning
confidence: 99%
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“…The highest genetic distance value was estimated for the pairs PI417360/Garantia and PI417360/ Conquista (0.85), followed by PI417360/MSOY8400 and PI417360/B3PTA216-1-9 (0.80), with averages of protein content equal to 41,01%/38,82%, 4 1 , 0 1 % / 3 8 , 5 4 % , 4 1 , 0 1 % / 3 7 , 1 9 % , a n d 41,01%/43,48%, respectively. (Bonato et al, 2006). Among all combinations of accessions, eight pairs of genotypes had genetic distances greater than 0.60 and protein contents greater than or equal to 43%: BARC-8/CS3032PTA276-1-2 (0.71); BARC-8/CS3032PTA190-5-1 (0.71); BARC-8/ CS3032PTA276-3-4 (0.71); CS3032PTA276-1-2/ B3PTA382-2-10 (0.62); B3PTA382-2-10/ CS3032PTA276-3-4 (0.62); B3PTA382-2-10/ CS3032PTA190-5-1 (0.62); B3PTA216-1-9/ CS3032PTA276-1-2 (0.61); and B3PTA216-1-9/ CS3032PTA276-3-4 (0.61).…”
Section: Resultsmentioning
confidence: 99%
“…The genetic distance (Bonato, Calvo, Arias, Toledo & Geraldi, 2006) estimates obtained by the complement of the weighted similarity index from the 39 microsatellite markers were also compared to the estimates obtained by the same index from the microsatellites of linkage group I, linkage group most related to the protein content according to the literature (Grant et al, 2010). All mentioned analyzes were performed with the sotware GENES ® (Cruz, 2013), to identify significant difference among treatments and statistical significance for all comparisons was made at p<0.05.…”
Section: Equationmentioning
confidence: 99%
“…Barroso et al (2003) relatam ausência de correlação entre os parâmetros, quanto ao caráter produtividade, e baixa correlação, quanto ao caráter altura de plantas, em que os coeficientes variaram entre 0,10 e 0,44 nas gerações avaliadas. Bonato et al (2006) observaram coeficientes de correlação entre 0,16 e 0,5, entre sete componentes de produção de grãos, avaliados para seis populações cultivadas em quatro épocas de semeadura.…”
Section: Resultsunclassified
“…Outra razão é a natureza codominante do marcador molecular utilizado, que tem informatividade genética superior àqueles de natureza dominante em trabalhos anteriores (Barroso et al, 2003;Bonato et al, 2006), e provável acurácia na estimativa da divergência genética, o que contribui para a correlação entre os parâmetros, por reduzir o viés. Outra razão pode ser atribuída às Figura 1.…”
Section: Resultsunclassified
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