Genetic diversity assessment in sorghum accessions using qualitative morphological and amplified fragment length polymorphism markers

Abstract

Qualitative morphological and amplified fragment length polymorphism (AFLP) markers were compared for assessment of genetic diversity. Nine qualitative morphological traits were recorded to compare genetic relationships among 17 sorghum accessions with information derived from six AFLP primer combinations analysis. The mean morphological genetic similarity was lower in comparison to similarity computed using AFLP markers. Genetic similarity measured by AFLP markers was similar within the Ethiopian and South African material, as well as between South African and Ethiopian material. Morphological similarity was much higher in the Ethiopian material than in the South African material, indicating that the genotypes were related.The two techniques described genetic variability in different ways. Dendrogram generated from the morphological data matrix separated accession 216737 as being genetically distinct from the rest of the accessions. Accessions M101 and 97MW6127 were the most dissimilar accessions based on AFLP data.

Evaluation of Variability in Lawsonia Inermis L. Using Morphological and Biochemical Markers.

“…Width of fruit was highest recorded in L16 (7.78mm) and least in L6 (1.58mm). Gerrano et al 2014). In the present study morphological characters were used for characterization of the collections of L. inermis.…”

Morphological Diversity of Local Sorghum Cultivar (Sorghum bicolor) of East Nusa Tenggara, Indonesia

“…The diversity of local cultivar of sorghum showed high genetic diversity (Morojele & Mbewe, 2015), unfortunately, the information was still unavailable. Information of genetic diversity is important for improvement, conservation, and survival of sorghum (Gerrano et al, 2014;Amelework et al, 2016). Previous studies reported that based on morphological character, the genetic diversity of sorghum in North Shewa and South Welo Ethiopia is high ( 0.32-0.98) (Abdi et al, 2002).…”

“…Previous studies reported that based on morphological character, the genetic diversity of sorghum in North Shewa and South Welo Ethiopia is high ( 0.32-0.98) (Abdi et al, 2002). Morphological character is more practice and easy to be observed when it is used for genetic diversity analysis (Gerrano et al, 2014). The selected morphological characters should be a qualitative character because it is relatively stable from environment influence.…”

Genetic diversity assessed by microsatellite markers in the amphicarpic species Trifolium polymorphum Poir.

“…1), the same being found by Conterato et al (2012) for T. riograndense and by Ahsyee et al (2014) for red clover (T. pratense). In sorghum, Gerrano et al (2014) found some relation between genetic diversity and geographic origin, and in common beans the relation between the majority of genotypes and the origin of cultivation were strongly correlated (Zargar et al 2016). The low genetic similarity observed between the accessions of T. polymorphum can be a reflection of the contrasting ecogeographic location, absence of gene flow due to the distance between the populations, plus the absence of seed dispersion, low fruit yield, with values ranging from 0.6 to 12 (Speroni and Izaguirre 2003), as well as the high morphological variation naturally present in the species (Zohary andHeller 1984, Real et al 2007).…”