Testing Deep Reticulate Evolution in Amaryllidaceae Tribe Hippeastreae (Asparagales) with ITS and Chloroplast Sequence Data

2014/02/23 by Nicolás García, Alan W. Meerow, Pamela S. Soltis · 3 citations
Biochemistry, Genetics and Molecular Biology · Agricultural and Biological Sciences · Chemistry · #Plant and Fungal Species Descriptions #Plant Diversity and Evolution #Chemical synthesis and alkaloids #Biology #Reticulate #Amaryllidaceae #Tribe #Botany #Reticulate evolution #Rhizome #Sequence (biology) #Evolutionary biology #Phylogenetics #Genetics #Anthropology

paper · doi:10.1600/036364414x678099

openalex publication_date 2014/02/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/19

Abstract

Abstract The phylogeny of Amaryllidaceae tribe Hippeastreae was inferred using chloroplast (3′ ycf1, ndhF, trnL(UAA)-F(GAA)) and nuclear (ITS rDNA) sequence data under maximum parsimony and maximum likelihood frameworks. Network analyses were applied to resolve conflicting signals among data sets and putative scenarios of reticulate evolution. All analyses of all regions consistently revealed two major clades, which are formalized as subtribes: A) Traubiinae, formed by Traubia, Placea, Phycella, Rhodolirium, and Famatina maulensis, characterized by x = 8, rare polyploidy, and a capitate stigma, and B) Hippeastrinae, including Eithea, Habranthus, Haylockia, Hippeastrum, Rhodophiala, Sprekelia, Zephyranthes, and Famatina pro parte, characterized by a range of basic chromosome numbers (x = 6-11) and frequent polyploidy and aneuploidy. No clear morphological features diagnose the latter clade, which contains ca. 90% of the tribe's species diversity. Our phylogenetic results question the monophyly of all genera in the tribe and show widespread cytonuclear discordance within the mainly Neotropical Hippeastrinae, further supporting putative ancient hybridization(s) preceding the radiation of this major clade. In contrast, the Traubiinae, endemic to Chile and Argentina, show a tree-like pattern of evolution, consistent with the apparent absence of allopolyploidy in this clade. A brief description, circumscription, and geographic distribution are provided for each subtribe.

Citations

• A subfamilial classification for the expanded asparagalean families Amaryllidaceae, Asparagaceae and Xanthorrhoeaceae
• Cases in which Parsimony or Compatibility Methods will be Positively Misleading
• Tilting at windmills: 20 years of <i>Hippeastrum</i> breeding
• Complex evolution in Arundinarieae (Poaceae: Bambusoideae): Incongruence between plastid and nuclear GBSSI gene phylogenies
• CONFIDENCE LIMITS ON PHYLOGENIES: AN APPROACH USING THE BOOTSTRAP
• Phylogeny of the American Amaryllidaceae Based on nrDNA ITS Sequences
• Hybridization and adaptive radiation
• Early Cretaceous lineages of monocot flowering plants
• Partitioned Bayesian Analyses, Partition Choice, and the Phylogenetic Relationships of Scincid Lizards
• Species-Level Paraphyly and Polyphyly: Frequency, Causes, and Consequences, with Insights from Animal Mitochondrial DNA
• Hybrid Origins of Plant Species
• Variation and Evolution in Plants
• The age of major monocot groups inferred from 800+rbcL sequences
• TNT, a free program for phylogenetic analysis
• PARSIMONY JACKKNIFING OUTPERFORMS NEIGHBOR‐JOINING
• Patterns and causes of incongruence between plastid and nuclear Senecioneae (Asteraceae) phylogenies

Cited by

• Generic classification of Amaryllidaceae tribe Hippeastreae
• A genus‐level phylogenetic linear sequence of monocots
• Hippeastrum [wikipedia]

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