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Genetic and clonal diversity of two cattail species, Typha latifolia and T. angustifolia (Typhaceae), from Ukraine
Author(s) -
Tsyusko Olga V.,
Smith Michael H.,
Sharitz Rebecca R.,
Glenn Travis C.
Publication year - 2005
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.3732/ajb.92.7.1161
Subject(s) - biology , genetic diversity , typha angustifolia , typha , botany , population , ecology , wetland , demography , sociology
Genetic and clonal diversity vary between two closely related cattail species ( Typha angustifolia and T. latifolia ) from Ukraine. This diversity was calculated from microsatellite data. Forty‐eight percent of the total variation was partitioned between species, which formed distinct clusters in a dendrogram with no indication of hybrid populations. Typha angustifolia had higher heterozygosity at the species ( H es = 0.66) and population ( H ep = 0.49) levels than did T. latifolia ( H es = 0.37 and H ep = 0.29, respectively). The higher number of alleles in T. angustifolia may be indicative of larger effective population sizes due to its higher seed production. Clonal diversity of T. angustifolia was lower than that of T. latifolia ( N g / N r = 0.40 and 0.61, Simpson's D = 0.82 and 0.94, respectively). Correlations between clonal and genetic diversity were higher for T. latifolia than T. angustifolia , suggesting that the importance of factors and their interactions affecting this relationship are different for the two species. Latitudinal and longitudinal trends were not observed in either species despite the large sampling area. Population differentiation was relatively high with F ST of 0.24 and 0.29 for T. angustifolia and T. latifolia , respectively. Weak isolation by distance was observed for T. latifolia but not for T. angustifolia .