Panicum coloratum is a species of C₄ type grass native to South Africa. In Argentina, it is valued for its production of good quality forage in environments where resources are limiting, although it is infrequently cultivated in livestock systems. The purpose of this study was to estimate the narrow sense heritability (h²) of the caryopses fall character using the Progeny-Parent Regression method and characterise molecular diversity using ISSR-type markers. The only significant value obtained was in week five, which gives an indication of the existence of additive genetic variance and also its stability. The ISSR markers allowed confirming the existence of genetic variability between cultivars and within individuals of the same cultivar through bands and unique alleles per genotype. The individuals of the Kapivera cultivar have been able to genetically differentiate themselves from the individuals of the Bambatsi cultivar by detecting loci and alleles that differentiate both cultivars. These markers proved to be effective for the distinction of the cultivars analysed and a wide variability has been observed in the species. The characterisation of the genetic diversity within the cultivars of P. coloratum var. makarikariense constitutes a fundamental step for its potential incorporation into breeding programs developed in the species.

Panicum coloratum是原产于南非的 C _{4型草种。}在阿根廷，它因其在资源有限的环境中生产优质饲料而受到重视，尽管它很少在畜牧系统中种植。本研究的目的是估计狭义遗传力 ( h ²）使用子代-亲本回归方法分析颖果的特征，并使用 ISSR 型标记表征分子多样性。获得的唯一显着值是在第五周，这表明了加性遗传方差的存在及其稳定性。ISSR 标记可以通过每个基因型的条带和独特等位基因来确认品种之间以及同一品种个体内部是否存在遗传变异。通过检测区分两个品种的基因座和等位基因，Kapivera 品种的个体能够在遗传上将自己与 Bambatsi 品种的个体区分开来。事实证明，这些标记对于区分所分析的品种是有效的，并且在物种中观察到了广泛的变异性。P. coloratum变种 makarikariense为将其纳入该物种的育种计划奠定了基础。