Results 41 to 50 of about 67,943 (302)

Tandem Duplication‐Driven Neofunctionalization of UDP‐Glycosyltransferases Shapes the Diversification of Triterpenoid Saponins in the Cucurbitaceae

Advanced Science, EarlyView.
We present a chromosome‐level genome assembly of Siraitia grosvenorii and, through comparative genomics, uncover a conserved UGT73 tandem array driving triterpenoid saponin diversification in Cucurbitaceae. Crystalized SgUGT73AM30 further reveals the regioselectivity mechanism underlying its catalytic activity.
Guangyi Wang, Mengmeng Li, Xuehui Dai, Yanchen Zhang, Yuhan Wu, Zhaotao Yan, Chenfei Tian, Hongkai Fan, Haili Liu, Xiaowei Zhang, Yiming Yang, Jiayu Lu, Yuwei Sun, Yong Wang   +13 more
wiley   +1 more source

Neogene stratigraphic architecture and tectonic evolution of Wanganui, King Country, and eastern Taranaki Basins, New Zealand [PDF]

, 2004
Analysis of the stratigraphic architecture of the fills of Wanganui, King Country, and eastern Taranaki Basins reveals the occurrence of five 2nd order Late Paleocene and Neogene sequences of tectonic origin.
Nelson, Campbell S., Avon P. McIntyre, Adam J. Vonk, Campbell S. Nelson, Vonk, Adam J., Kyle J. Bland, Hendy, Austin J.W., Austin J. W. Hendy, Peter J. J. Kamp, Stuart J. Cartwright, Bland, Kyle J., McIntyre, Avon P., Ngatai, Melodie, Kamp, Peter J.J., Hayton, Shaun, Rochelle J. Hansen, Melodie Ngatai, Hansen, Rochelle J., Cartwright, Stuart J., Shaun Hayton   +19 more
core   +1 more source

Integrating developmental and macroevolutionary approaches reveals a staminodial origin of all alternisepalous organs in Caryophyllaceae

American Journal of Botany, EarlyView.
Abstract Premise The identity of sterile floral organs in second‐whorl, alternisepalous positions within Caryophyllaceae remains contentious, having been described as staminodes, “petaloids,” or petals homologous with those of other Pentapetalae. Limited ingroup and outgroup sampling and floral developmental data and inadequate phylogenetic comparative
Riley J. Rees, Andrea D. Appleton, John J. Schenk   +2 more
wiley   +1 more source

Paleomagnetic and geochronologic constraints on the Miocene evolution of semi-isolated basins in southeastern Europe [PDF]

, 2011
This thesis addresses the Miocene evolution of the Central Paratethys and neighboring Dinaride Mountains. The Central Paratethys was a vast epicontinental sea covering most of central and southeastern Europe during the Oligo-Miocene.
de Leeuw, J.H.W.M., Paleomagnetism, ISES: Miocene to Pliocene evolution of the western Paratethys (Transylvanian and Pannonian basins) and spatial-temporal connections between Miocene semi-isolated basins   +2 more
core  

The lower Miocene flint conglomerate, Jylland, Denmark: a result of the Savian tectonic phase

GEUS Bulletin, 2020
The early Miocene was an important period for the development of the eastern North Sea. Tectonism in North-West Europe resulted in uplift of the Scandinavian mountains, reactivation of salt structures, inversion of old graben structures and deposition of
Erik Skovbjerg Rasmussen, Karen Dybkjær
doaj   +1 more source

The relationship between form and function of the carnivore mandible

The Anatomical Record, EarlyView.
Abstract Dietary morphology diversified extensively in Carnivoraformes (living Carnivora and their stem relatives) during the Cenozoic (the last 66 million years) as they evolved to capture, handle, and process new animal and plant diets. We used 3D geometric morphometrics, mechanical advantage, and finite element analysis to test the evolutionary ...
Charles J. Salcido, P. David Polly
wiley   +1 more source

The Monterey event in the Mediterranean: A record from shelf sediments of Malta [PDF]

, 1996
Oligo-Miocene carbonate platform and shelf sediments outcropping on the Maltese Islands provide an excellent archive of the paleoceanography of the central Mediterranean.
Helmut Weissert, Elizabeth Jacobs, Weissert, H, Shields, G, Peter Stille, Jacobs, E, Stille, P, Graham Shields   +7 more
core   +1 more source

Climate evolution from the Miocene to the present in central and southeastern Kazakhstan: Evidence from Aktau Mountain and Kushuk localities [PDF]

Caspian Journal of Environmental Sciences
Reconstructing past climate dynamics in Central Asia is essential for understanding the Cenozoic evolution of ecosystems and regional climate patterns.
Shahizada Akmagambet, Aizhan Zhamangara, Anar Myrzagaliyeva, Ruslan Muratov, Zhanna Adamzhanova, Talant Samarkhanov, Aizhan Zadagali, Anuarbek Kakabayev   +7 more
doaj   +1 more source

Climbing adaptations, locomotory disparity and ecological convergence in ancient stem ‘kangaroos’ [PDF]

Royal Society Open Science, 2019
Living kangaroos, wallabies and rat-kangaroos (Macropodoidea) constitute the most ecologically diverse radiation of Australasian marsupials. Indeed, even their hallmark bipedal hopping gait has been variously modified for bounding, walking and climbing ...
Wendy Den Boer, Nicolás E. Campione, Benjamin P. Kear   +2 more
doaj   +1 more source

Morphological variation in atlas and axis of Neotropical spiny rats (Rodentia, Echimyidae)

The Anatomical Record, EarlyView.
Abstract The unique morphologies of the first two cervical vertebrae, the atlas and axis, represent a significant innovation in mammalian evolution. These structures support the weight of the head and enable intricate movements of the head and neck.
Thomas Furtado da Silva Netto, João Felipe Leal Kaiuca, Adriana Itatí Olivares, William Corrêa Tavares   +3 more
wiley   +1 more source