Results 271 to 280 of about 1,901,054 (387)

Population genetics and phylogenomic insights into the origin of economically important black pepper (Piper nigrum)

open access: yesAmerican Journal of Botany, Volume 113, Issue 4, April 2026.
Abstract Premise We conducted population genetic and phylogenomic analyses of several cultivated Piper nigrum varieties and closely related species. We sought to establish (1) the genetic constitution of P. nigrum and its putative status as an allotetraploid hybrid of Indian origin, and (2) its relationships to other species of Piper in South and ...
Dominik Metschina   +12 more
wiley   +1 more source

Flower color polymorphism in the peacock anemone (Anemone pavonina) reflects spatiotemporal variation in pollinator abundance

open access: yesAmerican Journal of Botany, Volume 113, Issue 4, April 2026.
Abstract Premise Flower color polymorphisms are found across angiosperms and are shaped by multiple environmental factors. We investigated Anemone pavonina, which displays flower color variation from red to purple along an elevational gradient on Mount Olympus, Greece.
Jonathan Heinze   +4 more
wiley   +1 more source

Evaluating the peripheral nervous system pathology of Alzheimer's disease utilizing a functional human NMJ microphysiological system

open access: yesAlzheimer's &Dementia, Volume 22, Issue 4, April 2026.
Abstract INTRODUCTION Alzheimer's Disease (AD) is a central nervous system (CNS) neurodegenerative disease leading to dementia, but can also show symptoms of motor deficits. It is not clear whether the peripheral motor deficits in AD are derived from upstream centers or intrinsic to the neuromuscular circuit.
Akhmetzada Kargazhanov   +11 more
wiley   +1 more source

The impact of urbanisation on social behaviour: a comprehensive review

open access: yesBiological Reviews, Volume 101, Issue 2, Page 1003-1035, April 2026.
ABSTRACT Urbanisation is a key driver of global environmental change and presents animals with novel stressors and challenges. It can fundamentally influence social behaviour and has the potential to reshape within‐ and between‐species social interactions. Given the role of social behaviour in reproductive fitness and survival, understanding how social
Avery L. Maune   +2 more
wiley   +1 more source

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