title: Relationship between genome size and maturity group in soybean.
abstract: Previous studies have reported a correlation between genome size and relative maturity among plant species. The objective of this study was to determine whether such a relationship exists in soybean. Twenty cultivars, representing maturity groups ranging from 000 to IX, were analyzed using flow cytometric procedures. A 15% difference in genome size was observed ranging from 'BSR 201' at 2.88 pg to 'Maple Presto' at 2.51 pg. A highly significant correlation (r = 0.55) was observed between maturity and the genome size of the 20 cultivars.
authors.affiliation: Department of Agronomy, University of Illinois, 1201 W Gregory Ave., 61801, Urbana, IL, USA.
authors.forename: M J
authors.initials: MJ
authors.lastname: Graham
authors.forename: C D
authors.initials: CD
authors.lastname: Nickell
authors.forename: A L
authors.initials: AL
authors.lastname: Rayburn