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Jan Dvorak (As Quickly Written Down by a Person with Poor Hearing…Me)

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1/22/2018 The Impact of Polyploidy on Genome Evolution in Poales and Other Monocots “I don’t have to emphasize that gene duplications are the fabric of evolution in plants.” -Jan Dvorak (as quickly written down by a person with poor hearing…me) Michael R. McKain The University of Alabama @mrmckain @mrmckain Poales Diversity Grass genomes: the choose your own adventure of genome evolution • ~22,800 species • ~11,088 species in Poaceae • Transposons (McClintock, Wessler) • GC content bias (Carels and Bernardi 2000) • Three WGD events 0 0 4 0 0 • rho (Peterson et al. 2004) 3 y c n 0 e 0 u 2 q e r F • 0 sigma (Tang et al. 2010) 0 1 • tau (Tang et al. 2010, Jiao et al. 2014) 0 %GC Givnish et al. 2010 @mrmckain Schnable et al., 2009 Zeroing in on WGD placement Banana genome Pineapple genome How has ancient polyploidy altered the genomic landscape in grasses and other Poales? D’Hont et al. 2012 Ming, VanBuren et al. 2015 Recovered sigma after grass divergence from commelinids Recovered sigma after grass+pineapple divergence from commelinids @mrmckain @mrmckain 1 1/22/2018 Phylotranscriptomic approach Coalescence-based Phylogeny of 234 Single-copy genes • Sampling 27 transcriptomes and 7 genomes • Phylogeny consistent with previous • Representation for all families (except Thurniaceae) in nuclear gene results Poales • Conflicting topology with • RNA from young leaf or apical meristem, a combination of chloroplast genome tree: Moncot Tree of Life and 1KP • Ecdeiocolea/Joinvillea sister instead of • General steps: a grade • Trinity assembly • Typha sister to Poales, not • Orthogroup circumscription using a curated 22-genome dataset Bromeliaceae • Aligned amino acids with MUSCLE and created codon alignments with PAL2NAL • Gene tree reconstruction using RAxML Streptochaeta angustifolia Picture by: Jerry Davis @mrmckain @mrmckain Astral v.4.7.6 Placement of WGD Using PUG How we identify putative paralogs matters • PUG (Phylogenetic Placement of Polyploidy Using Genomes) Ecdeiocolea Streptochaeta’ Streptochaeta Sorghum’ Sorghum Sorghum Sorghum’ Oryza’ Oryza • https://github.com/mrmckain/PUG Oryza • Queries a gene tree against a species tree using a focal putative paralog pair Ecdeiocolea SyntenyAnalysis Tang et al. 2010 Multilabeled Gene Trees Streptochaeta’ Streptochaeta Streptochaeta Sorghum’ Sorghum Sorghum Sorghum’ Oryza’ Oryza Oryza Oryza’ VS. Testing for Poaceae Origin Hypothesis @mrmckain @mrmckain Ks Frequency Plots Synteny-derived Paralogs Ks frequency plot-derived Paralogs Sorghum bicolor Aristida stricta • Synteny from rice and sorghum genomes Total LCAs Dendrocalamus latiflorus r Brachypodium distachyon • Identification of 0 209 417 Oryza sativa Ecdeiocolea Streptochaeta Other Grasses Streptochaeta angustifolia • 8,267 putative rho paralog pairs Ecdeiocolea monostachya Joinvillea ascendens • 3,680 putative sigma + tau paralog pairs Flagellaria indica Chondropetalum tectorum Elegia fenestrata • Included 2,248 putative tau paralog pairs from Centrolepis monogyna Jiao et al. 2014 Lachnocaulon anceps Xyris jupicai Mayaca Lepidosperma gibsonii Cyperus papyrus • After filtering for outgroups, the PUG species tree Mapania palustris Juncus topology, and bootstrap values (80 cutoff) Stegolepis ferruginea s Neoregalia carolinae Typha Brocchina Other Poales Brocchinia reducta Typha latifolia Zingiber officinale • 411 rho LCA nodes Musa acuminata t Elaies guineensis • 26 sigma LCA nodes Phoenix dactylifera Hosta venusta • Yucca filamentosa 50 tau LCA nodes Vitis vinifera Amborella trichopoda @mrmckain @mrmckain 2 1/22/2018 Ks frequency plot-derived Paralogs Gene tree-derived Paralogs Sorghum bicolor Sorghum bicolor Aristida stricta Aristida stricta Total LCAs Dendrocalamus latiflorus Total LCAs Dendrocalamus latiflorus r r Brachypodium distachyon Brachypodium distachyon 235 402 615 0 51 102 Oryza sativa Oryza sativa Streptochaeta angustifolia • Streptochaeta angustifolia • Ecdeiocolea monostachya Ks frequency plots of all taxa Ecdeiocolea monostachya All possible pairs from multilabeled gene Joinvillea ascendens Joinvillea ascendens Flagellaria indica Flagellaria indica trees Chondropetalum tectorum Chondropetalum tectorum Elegia fenestrata Elegia fenestrata Centrolepis monogyna • Identification of 20,900 putative paralog pairs Centrolepis monogyna Lachnocaulon anceps Lachnocaulon anceps Xyris jupicai Xyris jupicai • Identification of 1,870,214 putative paralog Mayaca Mayaca Lepidosperma gibsonii Lepidosperma gibsonii Cyperus papyrus Cyperus papyrus pairs Mapania palustris • After filtering: 667 map to 343 unique LCA Mapania palustris Juncus • Most of these are isoforms/alleles Juncus Stegolepis ferruginea Stegolepis ferruginea nodes s s Neoregalia carolinae Neoregalia carolinae Brocchinia reducta Brocchinia reducta Typha latifolia Typha latifolia Zingiber officinale g Zingiber officinale b a Musa acuminata • After filtering: 36,567 map to 5,455 unique Musa acuminata t Elaies guineensis Elaies guineensis Phoenix dactylifera Phoenix dactylifera LCA nodes Hosta venusta Hosta venusta Yucca filamentosa Yucca filamentosa Vitis vinifera Vitis vinifera Amborella trichopoda Amborella trichopoda @mrmckain @mrmckain Summary of Gene Tree Polyploidy Support GC Content Evolution in Grasses Event Synteny Ks Plots Gene Trees • Bimodal distribution of genic GC content rho (grass) 411 78 610 • 5’ 3’ decreasing GC content gradient sigma (Poales) 26 22 235 • Positive correlation with recombination rate tau (monocot) 88 0 410 • Negative correlation with DNA methylation Restionaceae 0 102 499 • GC biased gene conversion Centrolepidaceae 0 0 200 • Recombination driven Restiid 0 15 184 • GC3 bias/codon usage bias Juncus 0 29 423 Cyperus 0 0 463 • Gene length (longer more GC) Zingiberales 0 0 377 • Increased expression Palms 0 0 345 Glémin et al. 2014 Agavoideae 0 0 615 @mrmckain @mrmckain 0.45 0.55 0.65 %GC GC content across Sorghum_bicolor Aristida_stricta 13,798 orthogroups Dendrocalamus_latiflorus Brachypodium_distachyon Oryza_sativa Poaceae Streptochaeta_angustifolia Ecdeiocolea_monostachya How has ancient polyploidy altered the genomic Joinvillea_ascendens Flagellaria_indica Chondropetalum_tector um Elegia_fenestrata landscape in grasses and other Poales? Aphelia_sp. Aphelia, Centrolepediaceae Centrolepis_monogyna Lachnocaulon_anceps Lachnocaulon, Eriocaulaceae Xyris_jupicai Mayaca_sp. Xyris, Xyridaceae Mayaca_fluviatilis Lepidosperma_gibsonii Is there a connection between polyploidy and the Cyperus_papyrus Cyperus_alternifolius Mapania_palustris Juncus_inflexus grass bimodal GC distribution? Juncus_effusus Stegolepis_ferruginea Stegolepis, Rapateaceae Neoregalia_carolinae Brocchinia_reducta Neoregalia, Bromeliaceae Typha_latifolia Typha_angustifolia Zingiber_officinale Musa_acuminata Elaies_guineensis Phoenix_dactylifera • Position normalized across Hosta_venusta Yucca_filamentosa Vitis_vinifera alignment to 1% alignment Amborella_trichopoda 1 0 0 0 0 0 0 0 0 0 0 length increments 1 2 3 4 5 6 7 8 9 0 1 @mrmckain @mrmckain Normalize Position Across All Orthogroups 3 1/22/2018 0 4 8 12 Percent Genes Sorghum_bicolor Aristida_stricta Dendrocalamus_latiflorus Identification of GC bimodality 0 4 8 12 Brachypodium_distachyon Oryza_sativa Percent Genes Streptochaeta_angustifolia GC content across Ecdeiocolea_monostachya Joinvillea_ascendens 13,798 orthogroups Sorghum_bicolorFlagellaria_indica • Reject null hypothesis of Hartigan’s dip test Aristida_strictaChondropetalum_tector um DendrocalamElegia_fus_latiflorenestrus ata for unimodality for seven taxa Brachypodium_distachAphelia_spy.on Oryza_sativaCentrolepis_monogyna Streptochaeta_angustifLachnocaulon_ancepsolia • Kmeans clustering used to identify the high Patterns of GC: Ecdeiocolea_monostachXyris_jupicaiya Joinvillea_ascendensMayaca_sp. and low means for these taxa • Unimodal-tight distribution Flagellaria_indicaMayaca_fluviatilis Chondropetalum_tectorLepidosperma_gibsoniium • Unimodal-broad distribution Elegia_fenestrCyperata us_papyrus • Bimodal Aphelia_sp. Cyperus_alternifolius Centrolepis_monogynaMapania_palustris Lachnocaulon_ancepsJuncus_inflexus Xyris_jupicaiJuncus_effusus Mayaca_sp.Stegolepis_ferruginea Combined GC Kmeans Results: Mayaca_fluviatilisNeoregalia_carolinae Lepidosperma_gibsoniiBrocchinia_reducta Low: 46.7% Cyperus_papTypha_latifyrus olia Cyperus_alterTypha_angustifnifolius olia Mapania_palustrZingiber_officinaleis High: 63.7% Juncus_infleMusa_acuminataxus Juncus_effususElaies_guineensis Stegolepis_fPhoenix_dactyliferruginea era Neoregalia_carolinaeHosta_venusta Brocchinia_reductaYucca_filamentosa Typha_latifoliaVitis_vinifera Typha_angustifAmborella_trolia ichopoda Zingiber_officinale 5 0 5 0 5 0 5 0 5 0 5 0 5 @mrmckain 2 3 3 4 4 5 5 6 6 7 7 Musa_acuminata8 8 @mrmckain Percent GC Elaies_guineensis Phoenix_dactylifera Hosta_venusta Yucca_filamentosa Vitis_vinifera Amborella_trichopoda 5 0 5 0 5 0 5 0 5 0 5 0 5 2 3 3 4 4 5 5 6 6 7 7 8 8 Percent GC Classification of Orthogroups by GC Content High/Low GC Orthogroup Distributions 0 0 5 0 2 • High GC—75% or more of transcripts for a given taxon in an 0 0 High GC High GC High GC 4 Low GC 0 Low GC Low GC 0 orthogroup are clustered as high GC (63.7%) 8 0 0 2 0 0 0 • 3,662 orthogroups 0 3 0 0 6 0 y y y 5 c c c 1 n n n e e e 0 u u u 0 q q q 0 e e e r r r 0 0 F F F 2 0 4 0 0 • Low GC—75% or more of transcripts for a given taxon in an 1 0 0 0 orthogroups are clustered as low GC (46.7%) 0 0 0 0 1 2 • 6,770 orthogroups 5 0 0 0 0.0 0.2 0.4 0.6 0.8 1.0 0.0 0.2 0.4 0.6 0.8 1.0 0.0 0.2 0.4 0.6 0.8 1.0 • Mixed GC—remaining orthogroups that do not fall
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    Reducing Deer Damage in the Landscape D Coetzee Public Domain bestfriendthemom Dusty Hancock CC BY-NC-ND 2.0 Chatham Master Gardener Volunteer Matt Jones Horticulture Agent NC Cooperative Extension - Chatham County Center Plant Selection Deer Candy • Aucuba • Hosta • Arborvitae • Indian Hawthorn • Azalea • Ivy • Blueberry • Chionanthus, • Clematis Malus, Prunus, • Daylily Pyrus • Euonymus • Redbuds • Fatsia • Roses Muhenbergia capillaris Pink Muhly Grass (Poaceae) Andrea Laine Jim Robbins CC BY NC 4.0 CC BY-NC-ND 4.0 Muhlenbergia capillaris Pink Muhly Grass (Poaceae) Full Sun Moist to very dry 1-3’ x 1-3’ Fall Susan Strine Fall-Winter CC BY 2.0 Schizachyrium scoparium Little Blue Stem (Poaceae) Jim Robbins Joshua Mayer Jim Robbins Montreais CC BY-SA 2.0 DE CC BY-NC-ND 4.0 CC BY-NC-ND 4.0 CC BY-SA 3.0 Schizachyrium scoparium Little Blue Stem (Poaceae) Full Sun Moist to dry Good drainage 1-4’ x 18”-2’ Summer-Fall Susan Strine Summer-Fall Jim RobbinsCC BY 2.0 CC BY-NC-ND 4.0 Chasmanthium latifolium River Oats (Poaceae) Klasse im Garten Anne McCormack CC BY 2.0 CC BY-NC 2.0 Chasmanthium latifolium River Oats (Poaceae) Part shade to dappled sun Moist Occasionally wet 2-5’ x 1-2’ Summer-Fall Anne McCormack Summer-Fall CC BY-NC 2.0 Myrica cerifera (Myricaceae) Common Wax Myrtle Forest and Kim Starr CC BY 2.0 Forest and Kim Starr CC BY 2.0 Myrica cerifera (Myricaceae) Common Wax Myrtle Jim Robbins CC BY-NC-ND 4.0 Jim Robbins Jim Robbins CC BY-NC-ND 4.0 CC BY-NC-ND 4.0 Great for urban soils, full sun to part shade.
  • Vicariance, Climate Change, Anatomy and Phylogeny of Restionaceae

    Vicariance, Climate Change, Anatomy and Phylogeny of Restionaceae

    Botanical Journal of the Linnean Society (2000), 134: 159–177. With 12 figures doi:10.1006/bojl.2000.0368, available online at http://www.idealibrary.com on Under the microscope: plant anatomy and systematics. Edited by P. J. Rudall and P. Gasson Vicariance, climate change, anatomy and phylogeny of Restionaceae H. P. LINDER FLS Bolus Herbarium, University of Cape Town, Rondebosch 7701, South Africa Cutler suggested almost 30 years ago that there was convergent evolution between African and Australian Restionaceae in the distinctive culm anatomical features of Restionaceae. This was based on his interpretation of the homologies of the anatomical features, and these are here tested against a ‘supertree’ phylogeny, based on three separate phylogenies. The first is based on morphology and includes all genera; the other two are based on molecular sequences from the chloroplast genome; one covers the African genera, and the other the Australian genera. This analysis corroborates Cutler’s interpretation of convergent evolution between African and Australian Restionaceae. However, it indicates that for the Australian genera, the evolutionary pathway of the culm anatomy is much more complex than originally thought. In the most likely scenario, the ancestral Restionaceae have protective cells derived from the chlorenchyma. These persist in African Restionaceae, but are soon lost in Australian Restionaceae. Pillar cells and sclerenchyma ribs evolve early in the diversification of Australian Restionaceae, but are secondarily lost numerous times. In some of the reduction cases, the result is a very simple culm anatomy, which Cutler had interpreted as a primitively simple culm type, while in other cases it appears as if the functions of the ribs and pillars may have been taken over by a new structure, protective cells developed from epidermal, rather than chlorenchyma, cells.
  • ATLAS of FLORIDA PLANTS - 7/29/19 Lake County Native Species

    ATLAS of FLORIDA PLANTS - 7/29/19 Lake County Native Species

    ATLAS OF FLORIDA PLANTS - 7/29/19 Lake County Native Species Scientific_Name Common_Name Endemic State US 1 Abutilon hulseanum MAUVE N 2 Acalypha gracilens SLENDER THREESEED MERCURY N 3 Acalypha ostryifolia PINELAND THREESEED MERCURY N 4 Acer negundo BOXELDER N 5 Acer rubrum RED MAPLE N 6 Acrolejeunea heterophylla 7 Acrostichum danaeifolium GIANT LEATHER FERN N 8 Aeschynomene americana SHYLEAF N 9 Aeschynomene viscidula STICKY JOINTVETCH N 10 Aesculus pavia RED BUCKEYE N 11 Agalinis fasciculata BEACH FALSE FOXGLOVE N 12 Agalinis filifolia SEMINOLE FALSE FOXGLOVE N 13 Agalinis linifolia FLAXLEAF FALSE FOXGLOVE N 14 Agalinis plukenetii PLUKENET'S FALSE FOXGLOVE N 15 Agarista populifolia FLORIDA HOBBLEBUSH; PIPESTEM N 16 Ageratina jucunda HAMMOCK SNAKEROOT N 17 Aletris lutea YELLOW COLICROOT N 18 Allium canadense var. canadense MEADOW GARLIC N 19 Amaranthus australis SOUTHERN AMARANTH N 20 Amblystegium serpens 21 Ambrosia artemisiifolia COMMON RAGWEED N 22 Amorpha fruticosa BASTARD FALSE INDIGO N 23 Amorpha herbacea var. herbacea CLUSTERSPIKE FALSE INDIGO N 24 Amphicarpum muehlenbergianum BLUE MAIDENCANE N 25 Amsonia ciliata FRINGED BLUESTAR N 26 Andropogon brachystachyus SHORTSPIKE BLUESTEM N 27 Andropogon floridanus FLORIDA BLUESTEM N 28 Andropogon glomeratus var. glaucopsis PURPLE BLUESTEM N 29 Andropogon glomeratus var. hirsutior BUSHY BLUESTEM N 30 Andropogon glomeratus var. pumilus BUSHY BLUESTEM N 31 Andropogon gyrans ELLIOTT'S BLUESTEM N 32 Andropogon longiberbis HAIRY BLUESTEM N 33 Andropogon ternarius SPLITBEARD BLUESTEM N 34 Andropogon