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Predominant trait inheritance in wheat with multivariate approach.

机译:利用多变量方法研究小麦的主要性状遗传。

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The objective of this study was to analize the inheritance of characters in wheat using multivariate analysis of variance. Sixteen genetic constitutions were evaluated between commercial cultivars and progenies F1 and F2. Treatments were arranged in completely randomized blocks, with three replicates. Five characters were evaluated. Multivariate analysis of variance and multivariate contrasts were then performed to test the hypotheses. The significant differences, obtained for comparison between parents and progenies F1, may be evidence of heterosis occurrence. However, only comparisons between progenies P1_P3 (F1) vs. P1_P3 (F2) and P4_P2 (F1) vs. P4_P2 (F2) showed significant differences. Multivariate analysis of variance revealed that inheritance of the characters studied is predominantly of the additive type. It is possible that, this occurred due to the degree of relationship between parents who reunited identical alleles at the same locus, by ancestry, as a result of inbreeding effects. The knowledge of additive inheritance may represent a faster incorporation of resistance or quality characteristics in new cultivars.
机译:这项研究的目的是使用方差的多变量分析来分析小麦中性状的遗传。在商业品种与子代F1和F2之间评估了16种遗传构成。将治疗安排在完全随机的区域中,一式三份。评价了五个字符。然后进行方差和多元对比的多变量分析以检验假设。为了比较亲本和子代F1而获得的显着差异可能是杂种优势发生的证据。但是,只有后代P1_P3(F1)与P1_P3(F2)和P4_P2(F1)与P4_P2(F2)之间的比较显示出显着差异。对方差的多变量分析显示,所研究字符的遗传主要是加性类型。这可能是由于近亲效应导致按祖先在相同基因座重聚了相同等位基因的父母之间的亲缘关系程度。加性遗传的知识可能表示新品种中抗性或品质特性的更快结合。

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