Results 21 to 30 of about 485 (133)

Toward a phylogenomic classification of magnoliids. [PDF]

open access: yesAm J Bot
Abstract Premise Magnoliids are a strongly supported clade of angiosperms. Previous phylogenetic studies based primarily on analyses of a limited number of mostly plastid markers have led to the current classification of magnoliids into four orders and 18 families. However, uncertainty remains regarding the placement of several families.
Helmstetter AJ   +14 more
europepmc   +2 more sources

Phylogenetic Relationships of the Perianthless Piperales: Reconstructing the Evolution of Floral Development [PDF]

open access: yesInternational Journal of Plant Sciences, 2004
The perianthless members of the Piperales are unique among the basal lineages of angiosperms because they are mainly herbaceous plants with over 2000 species possessing highly reduced flowers. There have been several attemptstoaddresstheevolutionoftheflowermorphologyinthegroup,butnopreviousstudyhasincludedaDNAbased estimate of phylogeny.
M. Alejandra Jaramillo   +2 more
  +8 more sources

The First Plastid Genome of the Holoparasitic Genus Prosopanche (Hydnoraceae)

open access: yesPlants, 2020
Plastomes of parasitic and mycoheterotrophic plants show different degrees of reduction depending on the plants’ level of heterotrophy and host dependence in comparison to photoautotrophic sister species, and the amount of time since heterotrophic ...
Matthias Jost   +4 more
doaj   +1 more source

Comprehensive Genomic Dataset of Chinese Lizardtail Herb and Comparative Genomic Analysis Provide Insights Into Its Paleo-Polyploidization Event. [PDF]

open access: yesEcol Evol
In this study, we provided a comprehensive genomic dataset for S. chinensis. Additionally, we observed that the S. chinensis genome underwent a paleo‐tetraploidization event, followed by several chromosome fusion events, resulting in an aneuploid paleo‐tetraploid state in its current genomic structure.
Cai S, Tang C.
europepmc   +2 more sources

Organización vascular y anatomía del leño del tallo secundario de Piper hieronymi C. DC. (Piperaceae)

open access: yesRevista del Museo de La Plata, 2021
Piper hieronymi es un arbusto o pequeño árbol que habita las selvas de Jujuy, Salta, Tucumán y Misiones, en Argentina. Sus tallos y ramas tienen nudos muy engrosados, y anatómicamente exhiben un arreglo policíclico de los haces vasculares.
Marisol Beltrán   +2 more
doaj   +1 more source

Peperomia (Piperaceae) no Leste Metropolitano do Rio de Janeiro, Brasil

open access: yesRodriguésia, 2020
Resumo Peperomia é o segundo maior gênero de Piperaceae, com 1.600 a 1.700 espécies no mundo. No Brasil são encontradas 173 espécies distribuídas por todo território, das quais 108 são endêmicas.
George Azevedo de Queiroz   +1 more
doaj   +1 more source

Tiny pollen grains: first evidence of Saururaceae from the Late Cretaceous of western North America [PDF]

open access: yesPeerJ, 2017
Background The Saururaceae, a very small family of Piperales comprising only six species in four genera, have a relatively scanty fossil record outside of Europe. The phylogenetic relationships of the four genera to each other are resolved, with the type
Friðgeir Grímsson   +2 more
doaj   +2 more sources

New records of Aristolochia (Aristolochiaceae) from Brazil: the importance of citizen science as a tool to study geographic distribution, conservation and insect-plant interactions

open access: yesRevista Mexicana de Biodiversidad, 2022
Two new occurrences of Aristolochia in Brazil are reported here. Aristolochia cremersii, hitherto known from French Guiana, was collected in Oriximiná/Pará, and A.
Joelcio Freitas   +6 more
doaj   +1 more source

Characterization of the complete chloroplast genome of Houttuynia cordata Thunb and phylogenetic relationships

open access: yesMitochondrial DNA. Part B. Resources, 2020
In this study, I presented the chloroplast genome of Houttuynia cordata Thunb using BGISEQ-500 sequencing data. Its chloroplast genome is 160,226 bp in size.
Xue-Lian Yang
doaj   +1 more source

Evolution of Class II TCP genes in perianth bearing Piperales and their contribution to the bilateral calyx in Aristolochia [PDF]

open access: yesNew Phytologist, 2020
Summary Controlled spatiotemporal cell division and expansion are responsible for floral bilateral symmetry. Genetic studies have pointed to class II TCP genes as major regulators of cell division and floral patterning in model core eudicots. Here we study their evolution in perianth‐bearing Piperales and their expression in Aristolochia, a rare ...
Natalia Pabón‐Mora   +7 more
openaire   +3 more sources

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