Genetic diversity of eight millet genera assessed by using molecular and morphological markers

Research output: Contribution to journalArticle

Published copy (DOI)

Author(s)

  • Zdislava Dvořáková
  • Petra Hlásná Čepková
  • Iva Viehmannová
  • Lenka Havlicková
  • Dagmar Janovská

Department/unit(s)

Publication details

JournalCrop and Pasture Science
DateAccepted/In press - 1 Oct 2015
DatePublished (current) - 29 Feb 2016
Issue number2
Volume67
Number of pages12
Pages (from-to)181-192
Original languageEnglish

Abstract

In this study, the genetic diversity and relationships among eight millet genera were investigated by molecular and morphological data analyses. Sixty-nine millet accessions were analysed by using amplified fragment length polymorphism (AFLP) markers, and evaluated for morphological traits. Eight AFLP primer pairs were amplified successfully and 779 bands were scored for all accessions, with a high level of polymorphism detected. Nei's genetic distance among all accessions varied from 0.0123 to 0.4246 and the Shannon's index was estimated at 0.9708. The neighbour joining tree, using the unweighted neighbour-joining method and Dice's dissimilarity coefficient, was constructed. The AFLP markers revealed the close relatedness between the Eragrostis and Panicum genera, whereas the greatest distance was found the Pennisetum and Echinochloa genera. Cluster analysis based on the AFLP profiles revealed that the majority of accessions of a given millet genus tend to group together. Clustering from morphological data allocated individuals into three main clusters with high variation. The genetic variability found between the analysed accessions was weakly negatively correlated (r = -0.074) with their morphological attributes. However, high molecular and morphological variability indicated that this collection includes rich and valuable plant materials for millet breeding.

    Research areas

  • Millet species, Morphological traits, Relatedness

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