Hybrid Origins and Homoploid Reticulate Evolution within Heliosperma (Sileneae, Caryophyllaceae)-A Multigene Phylogenetic Approach with Relative Dating

被引:111
作者
Frajman, Bozo [1 ,2 ]
Eggens, Frida [2 ]
Oxelman, Bengt [2 ,3 ]
机构
[1] Univ Ljubljana, Biotech Fac, Dept Biol, SI-1000 Ljubljana, Slovenia
[2] Uppsala Univ, Dept Systemat Bot, Evolutionary Biol Ctr, SE-75236 Uppsala, Sweden
[3] Univ Gothenburg, Dept Plant & Environm Sci, SE-40530 Gothenburg, Sweden
基金
瑞典研究理事会;
关键词
BEAST; homoploid hybridization; incongruence; lineage sorting; PATHd8; r8s; relative dating; RPA2; RPB2; RPD2; MOLECULAR EVOLUTION; DIVERGENCE TIMES; SILENE CARYOPHYLLACEAE; CONCERTED EVOLUTION; ABSOLUTE RATES; NUCLEAR RDNA; GENE TREES; CHLOROPLAST; SPECIATION; HISTORY;
D O I
10.1093/sysbio/syp030
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
We used four potentially unlinked nuclear DNA regions from the gene family encoding the second largest subunit of the RNA polymerases, as well as the psbE-petG spacer and the rps16 intron from the chloroplast genome, to evaluate the origin of and relationships within Heliosperma (Sileneae, Caryophyllaceae). Relative dates of divergence times are used to discriminate between hybridization and gene duplication/loss as alternative explanations for topological conflicts between gene trees. The observed incongruent relationships among the three major lineages of Heliosperma are better explained by homoploid hybridization than by gene duplication/losses because species branching events exceed gene coalescence times under biologically reasonable population sizes and generation times, making lineage sorting an unlikely explanation. The origin of Heliosperma is complex and the gene trees likely reflect both reticulate evolution and sorting events. At least two lineages have been involved in the origin of Heliosperma, one most closely related to the ancestor of Viscaria and Atocion and the other to Eudianthe and/or Petrocoptis.
引用
收藏
页码:328 / 345
页数:18
相关论文
共 87 条
[31]  
James JK, 2005, EVOLUTION, V59, P2533, DOI 10.1111/j.0014-3820.2005.tb00967.x
[32]   Polyploid and hybrid evolution in roses east of the Rocky Mountains [J].
Joly, S ;
Starr, JR ;
Lewis, WH ;
Bruneau, A .
AMERICAN JOURNAL OF BOTANY, 2006, 93 (03) :412-425
[33]   Incorporating allelic variation for reconstructing the evolutionary history of organisms from multiple genes:: An example from Rosa in north America [J].
Joly, Simon ;
Bruneau, Anne .
SYSTEMATIC BIOLOGY, 2006, 55 (04) :623-636
[34]   A Middle-Late Eocene inflorescence of Caryophyllaceae from Tasmania, Australia [J].
Jordan, GJ ;
Macphail, MK .
AMERICAN JOURNAL OF BOTANY, 2003, 90 (05) :761-768
[35]   Automated phylogenetic detection of recombination using a genetic algorithm [J].
Kosakovsky Pond, Sergei L. ;
Posada, David ;
Gravenor, Michael B. ;
Woelk, Christopher H. ;
Frost, Simon D. W. .
MOLECULAR BIOLOGY AND EVOLUTION, 2006, 23 (10) :1891-1901
[36]   A likelihood approach to estimating phylogeny from discrete morphological character data [J].
Lewis, PO .
SYSTEMATIC BIOLOGY, 2001, 50 (06) :913-925
[37]   Reconstructing patterns of reticulate evolution UN plants [J].
Linder, CR ;
Rieseberg, LH .
AMERICAN JOURNAL OF BOTANY, 2004, 91 (10) :1700-1708
[38]   Species trees from gene trees: Reconstructing Bayesian posterior distributions of a species phylogeny using estimated gene tree distributions [J].
Liu, Liang ;
Pearl, Dennis K. .
SYSTEMATIC BIOLOGY, 2007, 56 (03) :504-514
[39]   The evolutionary fate and consequences of duplicate genes [J].
Lynch, M ;
Conery, JS .
SCIENCE, 2000, 290 (5494) :1151-1155
[40]   Inferring phylogeny despite incomplete lineage sorting [J].
Maddison, WP ;
Knowles, LL .
SYSTEMATIC BIOLOGY, 2006, 55 (01) :21-30