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Abstract Detail

Hybrids and Hybridization

Bird, Kevin [1], VanBuren, Robert [2], Puzey, Joshua [3], Edger, Patrick [4].

The causes and consequences of subgenome dominance in hybrids and recent polyploids.

The merger of divergent genomes, via hybridization or allopolyploidization, frequently results in a ‘genomic shock’ that induces a series of rapid, novel genetic and epigenetic modifications due to conflicts between parental genomes. This conflict among the subgenomes routinely leads one subgenome to become dominant over the other subgenome(s), resulting in subgenome biases in gene content and expression. Recent advances in methods to analyze hybrid and polyploid genomes with comparisons to extant parental progenitors have allowed for major strides in understanding the mechanistic basis for subgenome dominance. Here we will describe recent discoveries uncovering the underlying mechanisms and provide a framework to predict subgenome dominance in hybrids and allopolyploids with far reaching implications for agricultural, ecological, and evolutionary research.

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1 - Michigan State University, Horticulture, 1066 Bogue St., East Lansing, MI, 48824, United States
2 - Michigan State University, 1066 Bogue St., East Lansing, Michigan, 48824, United States
3 - College Of William And Mary, Biology Dept., 540 Landrum Dr., Williamsburg, VA, 23185, United States
4 - Michigan State University

none specified

Presentation Type: Oral Paper
Session: 10, Hybrids and Hybridization
Location: 101/Mayo Civic Center
Date: Monday, July 23rd, 2018
Time: 1:30 PM
Number: 10001
Abstract ID:394
Candidate for Awards:None

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