User profiles for Joseph F. Walker
 | Joseph F. WalkerUniversity of Illinois Chicago Verified email at umich.edu Cited by 1607 |
Phyx: phylogenetic tools for unix
The ease with which phylogenomic data can be generated has drastically escalated the
computational burden for even routine phylogenetic investigations. To address this, we present …
computational burden for even routine phylogenetic investigations. To address this, we present …
[HTML][HTML] So many genes, so little time: a practical approach to divergence-time estimation in the genomic era
Phylogenomic datasets have been successfully used to address questions involving
evolutionary relationships, patterns of genome structure, signatures of selection, and gene and …
evolutionary relationships, patterns of genome structure, signatures of selection, and gene and …
Quartet sampling distinguishes lack of support from conflicting support in the green plant tree of life
Premise of the Study Phylogenetic support has been difficult to evaluate within the green
plant tree of life partly due to a lack of specificity between conflicted versus poorly informed …
plant tree of life partly due to a lack of specificity between conflicted versus poorly informed …
Monocotyledonous plants graft at the embryonic root–shoot interface
…, C Musseau, M Craze, S Bowden, JF Walker… - Nature, 2022 - nature.com
Grafting is possible in both animals and plants. Although in animals the process requires
surgery and is often associated with rejection of non-self, in plants grafting is widespread, and …
surgery and is often associated with rejection of non-self, in plants grafting is widespread, and …
From cacti to carnivores: Improved phylotranscriptomic sampling and hierarchical homology inference provide further insight into the evolution of Caryophyllales
Premise of the Study The Caryophyllales contain ~12,500 species and are known for their
cosmopolitan distribution, convergence of trait evolution, and extreme adaptations. Some …
cosmopolitan distribution, convergence of trait evolution, and extreme adaptations. Some …
[HTML][HTML] Characterizing gene tree conflict in plastome-inferred phylogenies
Evolutionary relationships among plants have been inferred primarily using chloroplast data.
To date, no study has comprehensively examined the plastome for gene tree conflict. Using …
To date, no study has comprehensively examined the plastome for gene tree conflict. Using …
Improved transcriptome sampling pinpoints 26 ancient and more recent polyploidy events in Caryophyllales, including two allopolyploidy events
…, J Mikenas, J Olivieri, JF Walker… - New …, 2018 - Wiley Online Library
Studies of the macroevolutionary legacy of polyploidy are limited by an incomplete sampling
of these events across the tree of life. To better locate and understand these events, we …
of these events across the tree of life. To better locate and understand these events, we …
Comparative analysis of complete chloroplast genome sequence and inversion variation in Lasthenia burkei (Madieae, Asteraceae)
• Premise of the study: Complete chloroplast genome studies can help resolve relationships
among large, complex plant lineages such as Asteraceae. We present the first whole …
among large, complex plant lineages such as Asteraceae. We present the first whole …
Analyzing contentious relationships and outlier genes in phylogenomics
Recent studies have demonstrated that conflict is common among gene trees in phylogenomic
studies, and that less than one percent of genes may ultimately drive species tree …
studies, and that less than one percent of genes may ultimately drive species tree …
Disparity, diversity, and duplications in the Caryophyllales
The role played by whole genome duplication ( WGD ) in plant evolution is actively debated.
WGD s have been associated with advantages such as superior colonization, various …
WGD s have been associated with advantages such as superior colonization, various …