Abstract Detail

Systematics

Alford, Mac [1], Pagart, Corey [2], Collins, Tori [3], Krosnick, Shawn [4].

Phylogenetic Relationships of the Genera of Achariaceae Based on Analyses of Morphological and DNA Data.

Achariaceae are a mostly tropical family of flowering plants consisting of about 29 genera and 150 species of trees and shrubs. Although they are closely related to passionflowers (Passifloraceae), violets (Violaceae), and willows and cottonwoods (Salicaceae), phylogenetic relationships of the genera remain unclear because the only studies have been focused on particular genera or had limited sampling. Few studies of the family have been conducted in general, except for some on species that produce chaulmoogra oil, a commonly used historical treatment for leprosy. Here the relationships of the genera within the family were studied using phylogenetic analysis of morphological and molecular data. For morphology, a data matrix of 37 features was generated, and for DNA, a data matrix from one plastid region (ndhF) and one nuclear region (GBSSI) was generated. Phylogenetic analyses of these data indicate that the tribes within the family are not monophyletic and that the family consists of two major, well-supported clades. As hypothesized in a previous study, the (two or three) genera of Phyllobotryeae are related to genera of Achariaceae, and not to Salicaceae, and one genus, Ahernia, is more closely related to Salicaceae. Thus, Achariaceae now consist of 32–33 genera.

1 - University Of Southern Mississippi, School Of Biological, Environmental, And Earth Sciences, 118 College Drive #5018, TEC 103, Hattiesburg, MS, 39406, United States
2 - University of Southern Mississippi, School of Biological, Environmental, and Earth Sciences, 118 College Dr. #5018, Hattiesburg, MS, 39406, USA
3 - Southwind High School, 7900 East Shelby Drive , Memphis, TN, 38125, USA
4 - Tennessee Tech University, Dept. Of Biology, 1100 East Dixie Avenue, Pennebaker Hall #207, Cookeville, TN, 38505, United States

Keywords:
Achariaceae
Flacourtiaceae
Salicaceae
Systematics
chaulmoogra oil
GBSSI
ndhF
morphology.

Presentation Type: Oral Paper
Session: SYS2, Systematics II: Rosids part B to Basal Asterids
Location: Virtual/Virtual
Date: Tuesday, July 28th, 2020
Time: 12:30 PM
Number: SYS2001
Abstract ID:496
Candidate for Awards:None