Zobrazeno 1 - 10
of 502
pro vyhledávání: '"David Kay"'
Publikováno v:
Plants, Vol 13, Iss 18, p 2581 (2024)
Global warming has caused many species to become endangered or even extinct. Describing and predicting how species will respond to global warming is one of the hotspots of biodiversity research. Species distribution models predict the potential distr
Externí odkaz:
https://doaj.org/article/81f8deceeef04ceb81d920034d8b53ba
Publikováno v:
Plants, Vol 13, Iss 16, p 2196 (2024)
Gymnosperms originated in the Middle Devonian and have experienced a long evolutionary history with pulses of speciation and extinction, which resulted in the four morphologically distinct extant groups, i.e., cycads, Ginkgo, conifers and gnetophytes
Externí odkaz:
https://doaj.org/article/f4ec2a6d39a148b48f75e13c8690b3a2
Publikováno v:
BMC Plant Biology, Vol 23, Iss 1, Pp 1-15 (2023)
Abstract Background The family Lauraceae possesses ca. 50 genera and 2,500–3,000 species that are distributed in the pantropics. Only half of the genera of the family were represented in previously published plastome phylogenies because of the diff
Externí odkaz:
https://doaj.org/article/ec9e110aeea04771aba1c761436bb4d7
Publikováno v:
Global Ecology and Conservation, Vol 46, Iss , Pp e02566- (2023)
The family Lauraceae is characterized by numerous species and is an important element in tropical and subtropical forests in China. Altogether 99 species of the family have been considered as threatened, caused mainly by over exploitation and habitat
Externí odkaz:
https://doaj.org/article/2d02e04f5f9f4dbf9f70f502ee9768ad
Autor:
Douglas Cartwright, Stephen Barclay, Adrian Stanley, Neil Lachlan, Ruth Gillespie, Ewan Forrest, Matthew Priest, Andrew Fraser, Michael Johnston, Gregory Naylor, Umberto Pisano, David Kay, Ram Kasthuri, Stuart Ballantyne, Heather Lafferty, Jeffry Evans, Karin Oien, Alistair Stewart McLaren, Johannes A Spoor, Srikanth Puttagunta, Kirsty Armstrong, Thomas R Jeffry Evans, Shouren Datta, Jennifer Milne, Rachel Swann, Adam Wimpress
Publikováno v:
BMJ Open Gastroenterology, Vol 10, Iss 1 (2023)
Objective The COVID-19 pandemic had an undoubted impact on the provision of elective and emergency cancer care, including the diagnosis and management of patients with hepatocellular carcinoma (HCC). Our aim was to determine the effects of the COVID-
Externí odkaz:
https://doaj.org/article/af2dc82f0c164ce388156da1d60df4ce
Publikováno v:
Ecology and Evolution, Vol 13, Iss 7, Pp n/a-n/a (2023)
Abstract We made an in‐depth review of historical studies of the cupressophyte conifer genus Cephalotaxus Siebold & Zucc. with an emphasis on its systematic position. We suggest that the systematic position of the genus is better understood using a
Externí odkaz:
https://doaj.org/article/8fa4e28753b442ee96c565aa4bca355c
Autor:
Yong Yang, David Kay Ferguson, Bing Liu, Kang-Shan Mao, Lian-Ming Gao, Shou-Zhou Zhang, Tao Wan, Keith Rushforth, Zhi-Xiang Zhang
Publikováno v:
Plant Diversity, Vol 44, Iss 4, Pp 340-350 (2022)
Living gymnosperms comprise four major groups: cycads, Ginkgo, conifers, and gnetophytes. Relationships among/within these lineages have not been fully resolved. Next generation sequencing has made available a large number of sequences, including bot
Externí odkaz:
https://doaj.org/article/3765502ad35a4fd5b23a2e64a31e3ba2
Publikováno v:
PhytoKeys, Vol 182, Iss , Pp 125-148 (2021)
In this study, we sampled 48 species of Asian Cinnamomum covering the species groups that were identified in recent phylogenetic studies and conducted leaf micromorphological observations using both light microscopy (LM) and scanning electron microsc
Externí odkaz:
https://doaj.org/article/81e6b442275443efa4f745176de0a4a5
Publikováno v:
PhytoKeys, Vol 179, Iss , Pp 129-143 (2021)
We collected an unusual new plant of Phoebe (Lauraceae) from southeastern Yunnan, China, which possesses more or less oblong leaves, paniculate inflorescences with strictly opposite lateral cymes, trimerous flowers with 4-locular stamens, and large f
Externí odkaz:
https://doaj.org/article/ded4ddd04ced43269a3570b71e284a5b
Publikováno v:
Plants, Vol 12, Iss 9, p 1749 (2023)
Macrofossil evidence has demonstrated a first radiation of gnetophytes in the Early Cretaceous. However, the origin of the diversity of gnetophytes remains ambiguous because gnetalean macrofossils have rarely been reported from pre-Cretaceous strata.
Externí odkaz:
https://doaj.org/article/e9731255da364e2c935daecb2ab0d072