The paper develops a theoretical framework to analyze heterosis by estimating QTL effects and applies it to maize and rice datasets, finding dominance primarily drives heterosis in both.

Genetics · Mar 18, 2025Peer-reviewedGenetics

Trophic level associated gut length divergence evolved under sexual conflict in Lake Malawi cichlids

Aldo Carmona Baez, Patrick J. Ciccotto, Emily C. Moore, Erin N. Peterson, Melissa S. Lamm, Natalie B. Roberts, Kaitlin P. Coyle, M. Kaitlyn Barker, Ethan Dickson, Amanda N. Cass, Guilherme da Silva Pereira, Zhao‐Bang Zeng, Rafael F. Guerrero, Reade B. Roberts

This study identifies genetic factors underlying gut length variation in Lake Malawi cichlids, showing sex-specific quantitative trait loci and epistatic interactions linked to trophic level differences and sexual conflict.

bioRxiv · Dec 9, 2024 · PreprintGenetics

The recombination landscape and multiple QTL mapping in a Solanum tuberosum cv. 'Atlantic'-derived F1 population

Guilherme da Silva Pereira, Marcelo Mollinari, Mitchell J. Schumann, Mark E. Clough, Zhao‐Bang Zeng, George Craig Yencho

The paper constructs a genetic map and identifies QTL in a tetraploid potato population, finding co-located QTL for multiple traits on linkage group 5.

Heredity · Mar 22, 2021Peer-reviewedGenetics

Quantitative trait locus mapping for common scab resistance in a tetraploid potato full-sib population

Guilherme da Silva Pereira, Marcelo Mollinari, Xinshun Qu, Christian A. Thill, Zhao‐Bang Zeng, Kathleen G. Haynes, George Craig Yencho

The paper identifies a QTL for common scab resistance in tetraploid potatoes using a full-sib population across multiple environments.

Plant Disease · Mar 17, 2021Peer-reviewedGenetics

Assembly Of Whole-Chromosome Pseudomolecules For Polyploid Plant Genomes Using Outcrossed Mapping Populations

Chenxi Zhou, Bode A. Olukolu, Dorcus Chepkesis Gemenet, Shan Wu, Wolfgang J. Grüneberg, Minh Duc Cao, Zhangjun Fei, Zhao‐Bang Zeng, Andrew W. George, Awais Khan, George Craig Yencho, Lachlan Coin

This paper develops a method to assemble whole-chromosome pseudomolecules for polyploid plant genomes using genotyping-by-sequencing and reference genome data, showing improved accuracy over existing tools.

Nature Genetics · Oct 30, 2020Peer-reviewedBioinformatics

Sequencing depth and genotype quality: Accuracy and breeding operation considerations for genomic selection applications in autopolyploid crops

Dorcus Chepkesis Gemenet, Hannele Lindqvist‐Kreuze, Bert De Boeck, Guilherme da Silva Pereira, Marcelo Mollinari, Zhao‐Bang Zeng, George Craig Yencho, Hugo Campos

This study evaluates the impact of sequencing depth, marker number, and genetic models on genomic selection accuracy in autopolyploid crops, finding that fewer SNPs and additive models are sufficient for most traits.

Theoretical and Applied Genetics · Sep 2, 2020Peer-reviewedGenetics

Multiple QTL mapping in autopolyploids: a random-effect model approach with application in a hexaploid sweetpotato full-sib population

Guilherme da Silva Pereira, Dorcus Chepkesis Gemenet, Marcelo Mollinari, Bode A. Olukolu, Joshua C. Wood, Federico C. Diaz, Veronica Mosquera, Wolfgang J. Grüneberg, Awais Khan, C. Robin Buell, George Craig Yencho, Zhao‐Bang Zeng

This paper develops a random-effect model for QTL mapping in autopolyploid sweetpotato, identifying 41 QTL across eight yield traits in a full-sib population.

Genetics · May 5, 2020Peer-reviewedGenetics

Unraveling the hexaploid sweetpotato inheritance using ultra-dense multilocus mapping

Marcelo Mollinari, Bode A. Olukolu, Guilherme da Silva Pereira, Awais Khan, Dorcus Chepkesis Gemenet, George Craig Yencho, Zhao‐Bang Zeng

This study constructs an ultra-dense genetic map for hexaploid sweetpotato and characterizes its inheritance system using a new software tool.

G3 Genes Genomes Genetics · Nov 15, 2019Peer-reviewedGenetics