Flowering plants - angiosperms

21 Pages·2005·1.61 MB·English

by  Doug Soltis

Flowering plants - angiosperms
A spectacular terrestrial radiation
Over 250,000 extant species
Major lineages originated 130-90 million years ago
Dramatic rise to dominance 100-70 million years ago
We’re Coordinated
Angiosperm phylogenetics has been highly collaborative
(e.g., Donoghue and Doyle 1989; Chase et al. 1993; Chase et al. 1993; D. Soltis et
al., 1997, 2000; Hoot et al. 1999; Qiu et al. 1999, 2000; P. Soltis et al., 1999;
Olmstead et al. 2000; Savolainen et al. 2000; Zanis et al. 2002; Hilu et al. 2003)
There have been numerous collaborations among the PIs
Analyses of sequences from all three plant genomes have
identified major clades
New classifications have been proposed (APG 1998; APG II
2003); also collaborative, and involving the PIs.
Summary tree
Based on Soltis et a. 2000 Triaperturate
with modifications from pollen
Zanis et al. 2002,
Soltis et al. 2003
Illiciu
m
Amborella Cabomba

The “Dirty Dozen”
FIG. 1A
ANmAybumosCrptemrehoClrlaaobahecnatloaToeoimRlpcraercaoaehaeoyncgaynatshtlneullheaBoonaSscdulPccieaiexuSCderaxnaGolsaaraiedctfaeubelreresaniaaaasCsgnclAeceuaeeeelslctraariaPHcaenceeiDelaagdeeremiaiasapid pecahaiPh selymalnacialGNlaleilaaeepiPniaylccosihcdcnheeenSyetacyaakialaaletcieeagoarceMAccilcenaaoeieoazacebaBaleocclDaeueaaaeHtgiscacadSaieeeceniletloaeaPCaelarpeaecgoeAacheenracectyaoAcuthataeesCalmaeacpactaceaoAeeeraarcryasacmeaSoPteenerpnihatpmrRhhaoyeaPaymhtspcalcaeoeleocaebnliayenDacadageadceeiocloeesaCledenaiaearaenMaseocenitlasVeyeeedscruasrirttoeiGraaaedosaclcseesoeeersiOmdaaa xneeaIHGEaIita aulu(oPilmdlaepueuCacshpastlearo ileaavsarrsMyi.cnbedL oeljiasi.iancvaEl)cpaaaePleiaCrccgaoaetelhiBcduenaaieosHaoaeeaiscOncayeteenpcecCPaaeeehmhaeVetarnirsiaaiecayosccascBileefacoelaaaocebaAleereaaaecaaenlS hcaHseoaaen.LupIlrlaC.ariaimacvaectccaiec einirsecsenaig.aaetPaloePie.caePaelh maoeLcseiycnpaoe.allrdhl.epatoaIaaoheExdnccnooretReehyanpnathaaZcayhdeieecxnyzrreiaoagtKodhaexcoparaeyeaphcCclamhaeoeeeycaraelaRleaeleracasaFoecCtecsaFreBaeaaubaaeeallScaeegereulasbsaernelsbetriasitdalaolelpesssidales
4. SAXIFRAGALES
5. CARYOPHYLLIDS
8. MALPIGHIALES
7. BASAL FABIDS
6. BASAL ROSIDS
3. CORE EUDICOTS
2. BASAL EUDICOTS
1. BASAL ANGIOSPERMS
FIG. 1B
GSunCaxnaierfryraBaolgpeSeashrablyneeDltslraiiilddlaBlsCoelMTaepnolsesisraatianrrdcmacaFaelgmlaieoernPeseuasaorvqciSliuseeaytiamcaDemeecroiiaepaanSealpcioetaeeTyMc cnasrhae.esaacleaic.eeaoeaPaacpcrseehMeiaamraceayeeuEsratlsbaSaeiLeccnaneeeapacaacoeyceetEetaahCarceiieecydCaaraAleiccelecletRahataSiceorenaaeriPrcaidrdeeeiauaaTnclectehaaencepaOieaGehaacnycaeecelraaIoareccyetaGheacaeleieecnnsSB aastocPio.calelrel.anVaoaanaegceaalonhelCsieslapiTsaOacerecellrteeeamramaeSaaceccatehhaAnaolcneecenigPaaadenBeecrltdaeiihVagcaaaceelnecieaLoareLaebcneaeaeeineamantBcieabieMycauaecbPelaaelaarOiearudtieyrlaaoonccPbwieeahaaaSncyneeeciSrcaarmthcoPielaepalbcaachaGeeneucCataeleaeaaesraglrneeciiPAemnaeercaoqianecaluitaaecnaiCreaefipioneaaahlgemcirR aeaAplCagoeaesBmuosntselruausrulteamanaTalcPcieecraeeosliecEaalblaieeyeEesaeaocrlcreaeaseecmmlmaleeoaTaao niecSsosnPi.eypraliaer.nnhciengeacePnac enaAaeelorlnapaisQCatetciiecaraaumelycpieapneroseihatAnfieionaadlaccoiceaexeacaaaeeeceaeea es.l.
rosids
12. CAMPANULIDS
9. ERICALES
11. LAMIALES
10. BASAL LAMIIDS
3. CORE EUDICOTS
Angiosperm AToL goals
Multigene and genomics approaches (entire plastid sequences) to
clarify the framework of angiosperm phylogeny, focusing on 12
particularly problematic nodes (“dirty, but doable”)
Identify non-molecular synapomorphies and initiate a
comprehensive morphological database for angiosperms with
a suite of key features
Angiosperm AToL sequencing
Plastid genome sequences
Whole plastid sequencing for 30
species; collaboration with R.
Jansen and the Green Plant AToL
to compile a data set of ~100
entire plastid sequences
Targeted sequencing
Sequence 17 genes of proven utility from 370 genera selected to
span each of the 12 problematic nodes.
Resolve relationships within Malpighiales, Lamiales, Ericales, and
Campanulids, using additional DNA regions and taxa.
Angiosperm AToL morphology
Selected morphological features
recorded from 370 taxa in
DNA analyses; first-hand
observations of herbarium
and living material
Observations available in a
morphological database (e.g.,
MorphBank, F. Ronquist)
Three suites of characters
emphasized: pollen
morphology, leaf architecture,
and wood/stem anatomy