Abstract Detail

Conservation Biology

Slotta, Tracey [1], Jones, Jennifer [2].

Conservation Genetics in Iliamna (Malvaceae).

liamna (Malvaceae) has a taxonomically complex history. Following its conception in 1906, the genus was not recognized for some time, and others placed species described by E.L. Greene in either Sphaeralcea or Phymosia. Ira L. Wiggins revised Iliamna in 1936 to include seven species: I. bakeri, I. crandallii, I. grandiflora, I. longisepala, I. remota, I. rivularis, and his newly-described I. latibracteata. The species in Iliamna are distributed in disjunct populations throughout North America in moist habitats along streams, in meadows, and on mountain hillsides. Iliamna corei and I. remota represent the easternmost distribution of the genus, located in Virginia and Virginia, Indiana, Illinois, respectively. The distinction between the two has been questioned and previously confirmed using inter-simple sequence repeat markers (ISSR). Iliamna crandallii, I. grandiflora, I. longisepala, and I. rivularis are morphologically very similar and have overlapping geographical ranges in the Rocky Mountains. The remaining species, I. latibracteata and I. bakeri, have not been questioned as to their status as distinct entities and represent the westernmost distribution of isolated populations in California and southern Oregon. Previous work assessing phylogenetic relationships using ITS, rpL16 and trnL-F indicate Iliamna may not be monophyletic. The objectives of this study were to examine genetic variation and population structure in Iliamna with inter-simple sequence repeats. Populations were surveyed to represent the known distribution of the group and include several populations per species. Results indicate I. corei and I. remota are closely related and potentially have undergone recent introgression. The greatest diversity was detected in I. rivularis, which has the largest range distribution within the genus.

Broader Impacts:

1 - American University, Biology, 4400 Massachusetts Ave NW, Washington, DC, 20016, USA
2 - American University, Biology, 4400 Massachusetts Ave NW, Washington, DC, 20016, United States

Keywords:
Mavaceae
Iliamna
ISSRs
population genetics.

Presentation Type: Poster:Posters for Topics
Session: P
Location: Battelle South/Convention Center
Date: Monday, July 9th, 2012
Time: 5:30 PM
Number: PCB004
Abstract ID:886