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Genetic Linkage in Soybean: Linkage Group 14
Author(s) -
Thorson P. R.,
Hedges B. R.,
Palmer R. G.
Publication year - 1989
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/cropsci1989.0011183x002900030032x
Subject(s) - biology , genetics , aconitase , genetic linkage , genetic marker , glycine , gene mapping , linkage (software) , gene , amino acid , chromosome , mitochondrion
A more extensive genetic map i soybean [ Glycine max (L.) Merr.] would be useful in cytogenetic, genetic, and plant breeding studies. The efficiency of mapping studies can be increased by utilizing F 2 populations that segregate for morphological and biochemical markers. The objective of this study was to determine if a chlorophyll‐deficient mutant ( Y9 ) was linked to any of three other morphological traits and four biochemical markers. The morphological traits tested were root fluorescence ( Fr1, Fr3 ), hypocotyl color ( W1 ), and pubescence tip ( Pb ). The biochemical markers were seed coat peroxidase ( Ep ), isocitrate dehydrogenase ( Idh2 ), aconitase ( Aco4 ), and phosphoglucoisomerase ( Pgi2 ). Linkage was detected between Y9 and Pb , and the pooled recombination value was calculated to be 27.3 ± 1.1%, based on combined F 2 and F 3 data. No other linkages were detected. This represents a new linkage group (Linkage Group 14) in soybean.