|Li, Zenglu - U OF ILLINOIS, URBANA|
Submitted to: Agronomy Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: July 1, 1998
Publication Date: N/A
Technical Abstract: Wild soybean [Glycine soja (Sieb. and Zucc.)] is distributed throughout much of China and is the progenitor of the cultivated soybean [Glycine max (L.) Merr.]. Prior to the advent of scientific plant breeding local primitive varieties of cultivated soybean were grown throughout China. The objectives of this research were to determine the genetic diversity between primitive soybean varieties and G. soja accessions and the influence of province of origin on the genetic relationships among accessions of both species. Ten primitive cultivated and 10 wild soybean accessions were selected from each of four provinces (Heilongjiang, Shandong, Jiangsu and Shanxi) in China. These provinces represent different ecological conditions and cropping systems. The genetic profile of each accession was determined by RAPDs using 40 selected primers. Gower's similarity coefficient was computed based on the presence or absence of RAPD fragments and the resulting matrix was subjected to cluster analyses. RAPD profiles were highly effective in separating accessions by species. More diversity existed among the accessions of G. soja than among accessions of G. max. Accessions within species from the same province tended to cluster together.