Author

Leigh A. Johnson

Professor of Biology, Brigham Young University - Cited by 3,707 - Systematic Botany

Biography

Leigh A.  Johnson is working as professor in F. Marie Hall Institute for Rural & Community Health, Texas Tech Health Sciences Center, Lubbock, TX, USA. Research experience includes various programs, contributions and participation in different countries for diverse fields of Bipolar Psychosis, Cognitive Disorders, Dysthemia, Obsessive Compulsive Disorder and Social Anxiety Disorder.
Title
Cited by
Year
Assessing congruence: empirical examples from molecular data
LA Johnson, DE SoltisMolecular systematics of plants II, 297-348, 1998199
245
1998
Emerging phylogeographical patterns of plants and terrestrial vertebrates from Patagonia
AN Sersic, A Cosacov, AA Cocucci, LA Johnson, R Pozner, LJ Avila, ...Biological Journal of the Linnean Society 103 (2), 475-494, 2011201
239
2011
Multiple periglacial refugia in the Patagonian steppe and post-glacial colonization of the Andes: the phylogeography of Calceolaria polyrhiza
A Cosacov Martinez, AN Sersic, V Sosa, LA Johnson, AA CocucciWiley, 2010201
122
2010
Multiple periglacial refugia in the Patagonian steppe and post‐glacial colonization of the Andes: the phylogeography of Calceolaria polyrhiza
A Cosacov, AN Sérsic, V Sosa, LA Johnson, AA CocucciJournal of Biogeography 37 (8), 1463-1477, 2010201
122
2010
Species delimitation and evolution in morphologically and chemically diverse communities of the lichen‐forming genus Xanthoparmelia (Parmeliaceae …
SD Leavitt, L Johnson, LL St. ClairAmerican Journal of Botany 98 (2), 175-188, 2011201
103
2011
Complex patterns of speciation in cosmopolitan “rock posy” lichens–Discovering and delimiting cryptic fungal species in the lichen-forming Rhizoplaca melanophthalma species …
SD Leavitt, JD Fankhauser, DH Leavitt, LD Porter, LA Johnson, LLS ClairMolecular Phylogenetics and Evolution 59 (3), 587-602, 2011201
101
2011
Species delimitation in taxonomically difficult lichen-forming fungi: an example from morphologically and chemically diverse Xanthoparmelia (Parmeliaceae) in North America
SD Leavitt, LA Johnson, T Goward, LLS ClairMolecular Phylogenetics and Evolution 60 (3), 317-332, 2011201
98
2011
A phylogenetic classification of Polemoniaceae
JM Porter, LA JohnsonAliso: A Journal of Systematic and Evolutionary Botany 19 (1), 55-91, 2000200
84
2000
American amphitropical disjuncts: Perspectives from vascular plant analyses and prospects for future research
MG Simpson, LA Johnson, T Villaverde, CM GuilliamsAmerican Journal of Botany 104 (11), 1600-1650, 2017201
52
2017
Seed Surface Sculpturing and Its Systematic Significance in Gilia (Polemoniaceae) and Segregate Genera
LA Johnson, KH Huish, JM PorterInternational journal of plant sciences 165 (1), 153-172, 2004200
45
2004
Historical and ecological divergence among populations of Monttea chilensis (Plantaginaceae), an endemic endangered shrub bordering the Atacama Desert, Chile
MC Baranzelli, LA Johnson, A Cosacov, AN SérsicEvolutionary Ecology 28 (4), 751-774, 2014201
45
2014
Evolutionary origin of the Asteraceae capitulum: insights from Calyceraceae
R Pozner, C Zanotti, LA JohnsonAmerican Journal of Botany 99 (1), 1-13, 2012201
44
2012
Precipitation rather than temperature influenced the phylogeography of the endemic shrub Anarthrophyllum desideratum in the Patagonian steppe
A Cosacov, LA Johnson, V Paiaro, AA Cocucci, FE CórdobaJournal of Biogeography 40 (1), 168-182, 2013201
42
2013
Nuclear and cpDNA sequences combined provide strong inference of higher phylogenetic relationships in the phlox family (Polemoniaceae)
LA Johnson, LM Chan, TL Weese, LD Busby, S McMurryMolecular phylogenetics and evolution 48 (3), 997-1012, 2008200
36
2008
Symbiont flexibility in subalpine rock shield lichen communities in the Southwestern USA
SD Leavitt, MP Nelsen, HT Lumbsch, LA Johnson, LLS ClairThe Bryologist 116 (2), 149-161, 2013201
36
2013
Phylogeography and palaeodistribution modelling in the Patagonian steppe: the case of Mulinum spinosum (Apiaceae)
SM Sede, MV Nicola, R Pozner, LA JohnsonJournal of Biogeography 39 (6), 1041-1057, 2012201
35
2012
The shadow of the past: Convergence of young and old South American desert lizards as measured by head shape traits
C Aguilar‐Puntriano, LJ Avila, I De la Riva, L Johnson, M Morando, ...Ecology and Evolution 8 (23), 11399-11409, 2018201
34
2018
Morphological delimitation and molecular evidence for allopolyploidy in Collomia wilkenii (Polemoniaceae), a new species from northern Nevada
LA Johnson, RL JohnsonSystematic Botany 31 (2), 349-360, 2006200
29
2006
Phylogenetic systematics of Ipomopsis (Polemoniaceae): relationships and divergence times estimated from chloroplast and nuclear DNA sequences
JM Porter, LA Johnson, D WilkenSystematic Botany 35 (1), 181-200, 2010201
26
2010
Utility of NADP-dependent isocitrate dehydrogenase for species-level evolutionary inference in angiosperm phylogeny: a case study in Saltugilia
TL Weese, LA JohnsonMolecular Phylogenetics and Evolution 36 (1), -41, 2005200
24
2005

Referred From: https://scholar.google.com/citations?user=qOA66U4AAAAJ&hl=en

Cited by
Citations 3707
h-index 24
i10-index 40
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