Abstract Detail

Insights into the diversity of plant sex chromosomes

Harkess, Alex [1].

Sex determination with two genes in garden asparagus.

An elegant model for the conversion of an autosomal pair in a hermaphroditic species to a sex chromosome in a dioecious species was formalized in part by Mogens Westergaard in 1953, Benson Storey in 1953, Deborah and Brian Charlesworth in 1978, and more. Briefly, the conversion from autosome to sex chromosome could require just two loci linked perfectly in non-recombination on a Y chromosome: one locus must dominantly suppress female (pistil) organogenesis, while another locus must promote the formation of male (anther) organogenesis. We test this model in garden asparagus, using a combination of comparative genome sequencing, mutagenesis, and single molecule FISH microscopy.

1 - Auburn University, Crop, Soil, Environmental Sciences, HudsonAlpha Institute of Biotechnology, Huntsville, AL

Keywords:
sex chromosomes
Dioecy
Asparagus.

Presentation Type: Symposium Presentation
Session: SY5, Insights into the diversity of plant sex chromosomes
Location: Virtual/Virtual
Date: Friday, July 31st, 2020
Time: 11:30 AM
Number: SY5004
Abstract ID:765
Candidate for Awards:None