Results 21 to 30 of about 109,083 (346)

Loss of YABBY2-Like Gene Expression May Underlie the Evolution of the Laminar Style in Canna and Contribute to Floral Morphological Diversity in the Zingiberales. [PDF]

open access: yes, 2015
The Zingiberales is an order of tropical monocots that exhibits diverse floral morphologies. The evolution of petaloid, laminar stamens, staminodes, and styles contributes to this diversity.
Almeida, Ana MR   +3 more
core   +6 more sources

A combinatorial approach to angiosperm pollen morphology [PDF]

open access: yes, 2016
Angiosperms (flowering plants) are strikingly diverse. This is clearly expressed in the morphology of their pollen grains, which are characterized by enormous variety in their shape and patterning.
Blackmore S   +7 more
core   +1 more source

A late origin of the extant eukaryotic diversity: divergence time estimates using rare genomic changes

open access: yesBiology Direct, 2011
Background Accurate estimation of the divergence time of the extant eukaryotes is a fundamentally important but extremely difficult problem owing primarily to gross violations of the molecular clock at long evolutionary distances and the lack of ...
Koonin Eugene V   +4 more
doaj   +1 more source

Mobilisation of distributional data for vascular plants of Murmansk Region, Russia: Digital representation of the Flora of Murmansk Region [PDF]

open access: yesBiodiversity Data Journal, 2020
The present-day demand for digital availability of distributional data in biodiversity studies requires a special effort in assembling and editing the data otherwise scattered in paper literature and herbarium collections, which can be poorly accessible ...
Mikhail Kozhin   +2 more
doaj   +3 more sources

Error, bias, and long-branch attraction in data for two chloroplast photosystem genes in seed plants [PDF]

open access: yes, 2000
Sequences of two chloroplast photosystem genes, psaA and psbB, together comprising about 3,500 bp, were obtained for all five major groups of extant seed plants and several outgroups among other vascular plants.
Brady, Siobhan   +4 more
core   +2 more sources

Powdery mildew in Southeast Asia: host range, impact, and sources of resistance

open access: yesTechnology in Agronomy, 2023
Powdery mildews are important obligate biotrophic ectoparasites that cause severe damage to various plant species in Southeast Asia. So far, 14 genera and 96 species of powdery mildew have been reported in Southeast Asia, with Thailand having the most ...
Herbert Dustin R. Aumentado   +2 more
doaj   +1 more source

The evolution of gene duplicates in angiosperms and the impact of protein-protein interactions and the mechanism of duplication [PDF]

open access: yes, 2019
Gene duplicates, generated through either whole genome duplication (WGD) or small-scale duplication (SSD), are prominent in angiosperms and are believed to play an important role in adaptation and in generating evolutionary novelty.
Carretero-Paulet, Lorenzo   +2 more
core   +2 more sources

Circumscription and phylogeny of the Laurales [PDF]

open access: yes, 1999
The order Laurales comprises a few indisputed core constituents, namely Gomortegaceae, Hernandiaceae, Lauraceae, and Monimiaceae sensu lato, and an equal number of families that have recently been included in, or excluded from, the order, namely ...
Renner, Susanne S.
core   +1 more source

Is it the end of the Cerrado domain in the west of state of Paraná (Brazil)? Floristic aspects of Cerrado fragments in Campo Mourão [PDF]

open access: yesRodriguésia, 2023
Currently only a few relicts of Brazilian savanna (Cerrado domain) remain sparsely distributed in state of Paraná. This study catalogued the species of vascular plants occurring in three Cerrado fragments of Campo Mourão.
Tatiane Monteiro-Ré   +3 more
doaj   +1 more source

Synteny analysis in Rosids with a walnut physical map reveals slow genome evolution in long-lived woody perennials. [PDF]

open access: yes, 2015
BackgroundMutations often accompany DNA replication. Since there may be fewer cell cycles per year in the germlines of long-lived than short-lived angiosperms, the genomes of long-lived angiosperms may be diverging more slowly than those of short-lived ...
Aradhya, Mallikarjuna   +9 more
core   +2 more sources

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