Results 261 to 270 of about 66,624 (345)

New Magnetite Reference Material for SIMS δ18O Measurements and a Study of Precision and Accuracy Due to Crystal Orientation Effects

Geostandards and Geoanalytical Research, Volume 50, Issue 2, Page 391-406, June 2026.
Key Points A new magnetite reference material (PF21mt) is available for δ18O measurements by SIMS. Reproducibility of measurement results in two laboratories suggest orientation bias of ±2‰ (2s) at 20 keV. Repeatability improves to ±1‰ (2s) when using a 13 keV protocol, suggesting reduced orientation bias. In situ isotope ratio measurements provide the
Michelle Ulrich, Daniela Rubatto, Maria Rosa Scicchitano, Benita Putlitz, Thomas Bovay   +4 more
wiley   +1 more source

Evolutionary constraints on anuran melanin for 45 million years. [PDF]

iScience
Falk D, Quigley A, Carazo Del Hoyo B, Rossi V, Webb SM, Wings O, McNamara ME.   +6 more
europepmc   +1 more source

Unravelling a Rapid Radiation: Biogeography and Niche Evolution of Carex sect. Echinochlaenae Kük. (Cyperaceae)

Journal of Biogeography, Volume 53, Issue 6, June 2026.
ABSTRACT Aim Carex section Echinochlaenae has a disjunct distribution across the Southern Hemisphere. It displays a clear center of diversity in New Zealand coupled with extreme morphological and ecological diversification, suggesting a potential evolutionary radiation.
A. Morales‐Alonso, K. A. Ford, M. Sanz‐Arnal, M. Míguez, P. García‐Moro, T. Villaverde, P. Jiménez‐Mejías, S. Martín‐Bravo   +7 more
wiley   +1 more source

Phylogenetic evidence reveals the classification and evolutionary history of endemic cavefish in China. [PDF]

BMC Ecol Evol
Luo T, Xiao MY, Wang JJ, Wang JJ, Liao M, Yu J, Lan CT, Xiao N, Zhou J.   +8 more
europepmc   +1 more source

The Paleogeographic Conditions for the Late Eocene sediments of Zhytomyr Polissya in connection with their amber content (on the example of the «Pravoberezhnа» site)

T.V. Shevchenko, Serhii Mamchur, Yaroslav Kurepa, Andrij Matveyev   +3 more
openalex   +2 more sources

A Near Telomere‐to‐Telomere Genome of Belamcanda chinensis Provides Insights Into Genome Evolution and the Biosynthesis of Characteristic Isoflavones

Plant Biotechnology Journal, Volume 24, Issue 6, Page 4285-4301, June 2026.
ABSTRACT Belamcanda chinensis is a non‐leguminous medicinal plant rich in bioactive isoflavones; however, the lack of a high‐quality reference genome has limited elucidation of its isoflavone biosynthetic and modification network. Here, we present the first near telomere‐to‐telomere genome assembly of B.
Yuan‐Yuan Wang, Bi‐Huan Chen, Gui‐Sheng Xiang, Yi‐Na Wang, Run Yang, Xiao‐Bo Li, Shi‐Yan Yuan, Yu‐Cheng Zhao, Guang‐Hui Zhang, Min‐Jian Qin, Sheng‐Chao Yang   +10 more
wiley   +1 more source

First evidence of Limoniidae (Diptera: Nematocera) in French amber from Oise. [PDF]

Sci Rep
Kopeć K, Krzemiński W, Kania-Kłosok I, Syratt M, Nel A, Soszyńska A.   +5 more
europepmc   +1 more source

New palaeoceanographic constraints on the Eocene-Oligocene Transition in the Pacific (abstract of paper presented at AGU Fall Meeting, San Francisco, 6-10 Dec 2002) [PDF]

, 2002
Paul A. Wilson, Heiko Pälike, Helen K. Coxall, Jan Backman   +3 more
openalex  

Legume genome structures and histories inferred from Cercis canadensis and Chamaecrista fasciculata genomes

The Plant Journal, Volume 126, Issue 5, June 2026.
SUMMARY The legume family originated ca. 60–65 million years ago and soon diversified into at least six lineages (now extant subfamilies). The signal of whole genome duplications (WGD) is apparent in species sampled from all six subfamilies. The early diversification has posed difficulties for resolving the legume backbone structure and the timing of ...
Hyun‐oh Lee, Jacob S. Stai, Qiaoji Xu, Thulani Hewavithana, Pratheesh Soman, Rabnoor Batra, Alex Liu, Brandon D. Jordan, Rachel Walstead, Jerry Jenkins, Melissa Williams, Jenell Webber, Jane Grimwood, John T. Lovell, Tomáš Brůna, Shengqiang Shu, Keykhosrow Keymanesh, Joanne Eichenberger, Jeremy Schmutz, David M. Goodstein, Kerrie Barry, David Sankoff, Lingling Jin, James H. Leebens‐Mack, Steven B. Cannon   +24 more
wiley   +1 more source

Microfacies analysis and diagenetic history of Lower to Middle Eocene carbonates at Umm Russies area in the northeastern desert of Egypt. [PDF]

Sci Rep
Abd-Elhameed M, Attia G, Salama Y, El-Moghazy A, Mahmoud A.   +4 more
europepmc   +1 more source