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Use of Chromosomal Translocations to Determine Similarity of Maize Genotypes for Reaction to Maize Dwarf Mosaic 1
Author(s) -
Scott Gene E.,
Rosenkranz Eugen E.
Publication year - 1973
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1973.0011183x001300060040x
Subject(s) - biology , chromosomal translocation , chromosome , endosperm , inoculation , genotype , poaceae , gene , genetics , agronomy , horticulture
Reciprocal chromosomal translations involving breaks on chromosome 6 were crossed onto eight maize ( Zea may L.) inbreds. Seven of these inbreds had been selected for their resistance to maize dwarf mosaic (MDM), and one for its susceptibility to this virus disease. The F 2 seeds from each of these crosses were separated for endosperm type. Starchy and nonstarchy seeds were planted in separate rows in greenhouse flats. The seedlings were inoculated with maize dwarf mosaic virus (MDMV) by using an artist's airbrush. From our results, we concluded that all of the resistant inbreds tested (except possibly Tx601) possess a gene(s) for resistance on each arm of chromosome 6. Thus, these inbreds appear to have genes for resistance to MDM in common with each other and with GA209.