Characterisation of maize inbred lines based on molecular markers, heterosis and pedigree data

• Published in: Genetika (Beograd) Vol. 39; no. 3; pp. 355 - 363
• Main Authors: Srdic, J., Maize Research Institute Zemun Polje, Belgrade - Zemun (Serbia), Mladenovic-Drinic, S., Maize Research Institute Zemun Polje, Belgrade - Zemun (Serbia), Pajic, Z., Maize Research Institute Zemun Polje, Belgrade - Zemun (Serbia), Filipovic, M., Maize Research Institute Zemun Polje, Belgrade - Zemun (Serbia)
• Format: Journal Article
• Language: English
• Published: 2007
• Subjects: DISTANCE GENETIQUE; DISTANCIA GENETICA; GENETIC DISTANCE; GENETIC MARKERS; HETEROSIS; http://www.fao.org/aos/agrovoc#c_24030; http://www.fao.org/aos/agrovoc#c_24039; http://www.fao.org/aos/agrovoc#c_27530; http://www.fao.org/aos/agrovoc#c_3705; http://www.fao.org/aos/agrovoc#c_8504; INBRED LINES; LIGNEE CONSANGUINE; LINEAS CONSANGUINEAS; MARCADORES GENETICOS; MARQUEUR GENETIQUE; VIGOR HIBRIDO; VIGUEUR HYBRIDE; ZEA MAYS
• ISSN: 0534-0012; 1820-6069
• DOI: 10.2298/GENSR0703355S

The aim of this research was to determine genetic diversity of ten maize inbred lines of different origin on the basis of protein and RAPD markers and to compare these results with pedigree and grain yield heterosis data. Results of genetic distances, based on protein and RAPD markers were similar and in concurrence with the data on the origin of inbreds. Usefulness of protein and RAPD markers for assigning inbreds to heterotic groups was examined by the cluster analysis. Cluster analysis based on protein markers, RAPD and heterosis showed clear grouping of lines into two main heterotic groups. Only few deviations were noticed, and those among inbreds not belonging to those heterotic groups. According to the observed results it could be concluded that grouping of inbred lines based on molecular markers, generally agrees with their pedigrees and that clusters are representatives of heterotic groups. Very high and highly significant estimate of rank correlation coefficient between RAPD and heterosis (0.876**) also confirmed that.