The most important objective of lentil breeding programs is to develop new genotypes that are genetically more productive. Besides, it is necessary that the varieties obtained have short flowering cycles to allow the later sowing of summer crops. Selection is based through phenotypic means; however, we argue it should be based on genetic or breeding values because quantitative traits are often influenced by environments and genotype–environment interactions. The objectives of this study were to: (i) identify genotypes with the highest merit; (ii) estimate genetic parameters to know the genetic control of morphological traits in macrosperma and microsperma lentil types using best linear unbiased prediction (BLUP). Twenty-five recombinant inbred lines (RILs) from six F4 families selected on the basis of precocity and high yields were tested in four environments for important quantitative traits. The analysis of variance showed significant differences between genotypes, environments, and genotype–environment interactions for all the traits. Seven macrosperma- and two microsperma-type RILs were selected. Based on average ranking from breeding values and molecular data obtained with sequence-related amplified polymorphism (SRAP), the same genotypes were selected. Genotypic coefficients of variation, heritability across and by environment, and genetic correlation coefficients using BLUP were obtained. According to our results BLUP could replace molecular analysis methods because the selection process was simpler, more cost-effective, and more accurate. The breeding value of parents would give a better ranking of their genetic value than would their phenotypic value; therefore, the selection efficiency would be enhanced and the genetic gain would be more predictable. The selected genotypes could become potential commercial varieties or be used as parental lines in future hybridization programs.

中文翻译：

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阿根廷小扁豆 (Lens culinaris Medik.) 育种计划中使用 BLUP 和分子方法选择亲本和估计遗传参数

扁豆育种计划最重要的目标是开发在遗传上更具生产力的新基因型。此外，所获得的品种必须具有较短的开花周期，以允许夏季作物的后期播种。选择是通过表型手段进行的；然而，我们认为它应该基于遗传或育种价值，因为数量性状通常受环境和基因型 - 环境相互作用的影响。本研究的目的是： (i) 确定具有最高价值的基因型；(ii) 估计遗传参数以了解遗传控制的形态性状大精子和微精子使用最佳线性无偏预测 (BLUP) 的扁豆类型。来自 6 个 F 的 25 个重组近交系 (RIL)4根据早熟和高产选择的家庭在四种环境中进行了重要数量性状的测试。方差分析显示所有性状的基因型、环境和基因型-环境相互作用之间存在显着差异。七大精子- 还有两个微精子选择了-型 RIL。根据育种值的平均排名和通过序列相关扩增多态性（SRAP）获得的分子数据，选择相同的基因型。获得了变异的基因型系数、跨环境和环境的遗传力，以及使用 BLUP 的遗传相关系数。根据我们的结果，BLUP 可以替代分子分析方法，因为选择过程更简单、更具成本效益且更准确。父母的育种价值将比他们的表型价值给出更好的遗传价值排名；因此，选择效率将提高，遗传增益将更可预测。选定的基因型可以成为潜在的商业品种或在未来的杂交计划中用作亲本系。