Abstract Detail

Comparative Genomics/Transcriptomics

Abrahams, Richard [1], Pires, Joseph [2], Schranz, M. Eric [3].

The Role of Gene Duplication in the Evolution of the Glucosinolate (Mustard Oil) MAM Locus.

  Glucosinolates are a diverse group of plant metabolites that characterize the order Brassicales. The MAM locus is one of the most significant QTLs for glucosinolate diversity. However, most of what we understand about evolution at the locus is focused on only a few species and not within a phylogenetic context. In this study, we utilize a micro-synteny network and phylogenetic inference to investigate the origin and diversification of the MAM/IPMS gene family. We uncover unique MAM-like genes found at the orthologous locus in the Cleomaceae that shed light on the transition from IPMS to MAM. In the Brassicaceae, we identify six distinct MAM clades across Lineages I, II, and III. We characterize the evolutionary impact and consequences of local duplications, transpositions, whole-genome duplications, and gene fusion events, generating several new hypothesizes on the function and diversity of the MAM locus.

1 - University of Missouri, 1201 E Rollins St, Columbia, MO, 65201, United States
2 - University Of Missouri, 371 Bond Life Sciences Center, 1201 Rollins Street, Columbia, MO, 65211, United States
3 - Wageningen University & Research, Biosystematics group, 6708 PB, Wageningen, NL

Keywords:
synteny
Brassicaceae
Metabolism
Gene Duplication
Gene Family
Glucosinolate.

Presentation Type: Oral Paper
Session: CG2, Functional & Comparative Genetics/Genomics II
Location: Virtual/Virtual
Date: Wednesday, July 29th, 2020
Time: 3:45 PM
Number: CG2004
Abstract ID:852
Candidate for Awards:Margaret Menzel Award