Generalist and specialist pollination in basal angiosperms (ANITA grade, basal monocots, magnoliids, Chloranthaceae and Ceratophyllaceae): what we know now

2015 ◽  
Vol 131 (4) ◽  
pp. 263-362 ◽  
Author(s):  
Gerhard Gottsberger
Keyword(s):  
Basal Angiosperms

Utility of 17 chloroplast genes for inferring the phylogeny of the basal angiosperms

2000 ◽  
Vol 87 (11) ◽  
pp. 1712-1730 ◽  
Author(s):  
Sean W. Graham ◽  
Richard G. Olmstead
Keyword(s):  
Chloroplast Genes ◽  
Basal Angiosperms

scholarly journals Floral variation and floral genetics in basal angiosperms

2009 ◽  
Vol 96 (1) ◽  
pp. 110-128 ◽  
Author(s):  
Pamela S. Soltis ◽  
Samuel F. Brockington ◽  
Mi-Jeong Yoo ◽  
Ana Piedrahita ◽  
Maribeth Latvis ◽  
...  
Keyword(s):  
Basal Angiosperms ◽  
Floral Variation

scholarly journals The largest early-diverging angiosperm family is mostly pollinated by ovipositing insects and so are most surviving lineages of early angiosperms

2018 ◽  
Vol 285 (1870) ◽  
pp. 20172365 ◽  
Author(s):  
Shi-Xiao Luo ◽  
Lian-Jie Zhang ◽  
Shuai Yuan ◽  
Zhong-Hui Ma ◽  
Dian-Xiang Zhang ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Food Reward ◽  
Early Miocene ◽  
Molecular Clocks ◽  
Plant Interactions ◽  
Insect Pollination ◽  
Basal Angiosperms ◽  
Gall Midges ◽  
Beetle Pollination ◽  
Direct Observations

Insect pollination in basal angiosperms is assumed to mostly involve ‘generalized' insects looking for food, but direct observations of ANITA grade (283 species) pollinators are sparse. We present new data for numerous Schisandraceae, the largest ANITA family, from fieldwork, nocturnal filming, electron microscopy, barcoding and molecular clocks to infer pollinator/plant interactions over multiple years at sites throughout China to test the extent of pollinator specificity. Schisandraceae are pollinated by nocturnal gall midges that lay eggs in the flowers and whose larvae then feed on floral exudates. At least three Schisandraceae have shifted to beetle pollination. Pollination by a single midge species predominates, but one species was pollinated by different species at three locations and one by two at the same location. Based on molecular clocks, gall midges and Schisandraceae may have interacted since at least the Early Miocene. Combining these findings with a review of all published ANITA pollination data shows that ovipositing flies are the most common pollinators of living representatives of the ANITA grade. Compared to food reward-based pollination, oviposition-based systems are less wasteful of plant gametes because (i) none are eaten and (ii) female insects with herbivorous larvae reliably visit conspecific flowers.

scholarly journals Phylogenetic Analyses of Basal Angiosperms Based on Nine Plastid, Mitochondrial, and Nuclear Genes

2005 ◽  
Vol 166 (5) ◽  
pp. 815-842 ◽  
Author(s):  
Yin‐Long Qiu ◽  
Olena Dombrovska ◽  
Jungho Lee ◽  
Libo Li ◽  
Barbara A. Whitlock ◽  
...  
Keyword(s):  
Phylogenetic Analyses ◽  
Nuclear Genes ◽  
Basal Angiosperms

scholarly journals DNA C-values in seven families fill phylogenetic gaps in the basal angiosperms

2002 ◽  
Vol 140 (2) ◽  
pp. 175-179 ◽  
Author(s):  
ILIA J. LEITCH ◽  
LYNDA HANSON
Keyword(s):  
Basal Angiosperms

scholarly journals The soursop genome and comparative genomics of basal angiosperms provide new insights on evolutionary incongruence

2019 ◽  
Author(s):  
Joeri S. Strijk ◽  
Damien D. Hinsinger ◽  
Mareike M. Roeder ◽  
Lars W. Chatrou ◽  
Thomas L. P. Couvreur ◽  
...  
Keyword(s):  
Comparative Genomics ◽  
Evolutionary History ◽  
Draft Genome ◽  
Critical Assessment ◽  
Whole Genome ◽  
Annona Muricata ◽  
High Quality ◽  
Basal Angiosperms ◽  
Complete Genomes ◽  
Analytical Approaches

AbstractDeep relationships and the sequence of divergence among major lineages of angiosperms (magnoliids, monocots and eudicots) remain ambiguous and differ depending on analytical approaches and datasets used. Complete genomes potentially provide opportunities to resolve these uncertainties, but two recently published magnoliid genomes instead deliver further conflicting signals. To disentangle key angiosperm relationships, we report a high-quality draft genome for the soursop (Annona muricata, Annonaceae). We reconstructed phylogenomic trees and show that the soursop represents a genomic mosaic supporting different histories, with scaffolds almost exclusively supporting single topologies. However, coalescent methods and a majority of genes support magnoliids as sister to monocots and eudicots, where previous whole genome-based studies remained inconclusive. This result is clear and consistent with recent studies using plastomes. The soursop genome highlights the need for more early diverging angiosperm genomes and critical assessment of the suitability of such genomes for inferring evolutionary history.

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