<p>Electrophoretic evidence supported the hypothesis that <em>Talinum teretifolium</em> is an allopolyploid derivative of <em>T. mengesii</em> and <em>T. parviflorum.</em> Electrophoretic variation was examined for 384 individuals from 21 populations of four <em>Talinum</em> species. Plants were scored for isozymes of nine enzyme systems specified by 23 gene loci of which 4 were monomorphic and 19 polymorphic. <em>Talinum teretifolium</em> populations were electrophoretically uniform, and all alleles of this species were accounted for by combining alleles present in its presumed parents. Genetic identity values between <em>T. teretifolium</em> and each of its presumed parents (I ≥ 0.817) were higher than between any other pair of the four <em>Talinum</em> species examined. The electrophoretic evidence did not support an alternative hypothesis that <em>T. calycinum</em> is a progenitor of <em>T. teretifolium.</em> Electrophoretic data also showed that <em>T. appalachianum</em> is a disjunct population of <em>T. parviflorum.</em> The average genetic identity between <em>T. appalachianum</em> and <em>T. parviflorum</em> (I = 0.884) was higher than the average genetic identity for conspecific populations of both <em>T. mengesii</em> and <em>T. calycinum.</em></p>
abstract
date
doi
10.1002/j.1537-2197.1985.tb08422.x
issue
10
volume
72
page_range
1590-1597
periodical
source_id
97
source_type
article
writers
Murdy, William H., & Carter, M. Eloise Brown.