Results 21 to 30 of about 565 (132)

Spermatophyta Molecular Clock: Time Drift and Recent Acceleration. [PDF]

Plant Environ Interact
Exponential increase in the base substitution rate in recent geologic time. ABSTRACT Angiospermae radiation is widely recognized as a mid‐Cretaceous event, but the adaptive radiation of Asarum and Viola as spring ephemerals also occurred during the Quaternary. To better understand the evolution of Angiospermae through geological time, a robust and well‐
Osozawa S.
europepmc   +2 more sources

Is There a Key Primer for Amplification of Core Land Plant DNA Barcode Regions (rbcL and matK)? [PDF]

Ecol Evol
We use in silico PCR to select and measure the amplification capability of primer. We tested 366 and 489 published primers for the rbcL and matK regions, respectively, using sequences from 8463 different land plant species. Our results indicate a set of primers that effectively cover all land plant sequences, particularly for the rbcL region.
Corvalán LCJ, de Melo-Ximenes AA, Carvalho LR, E Silva-Neto CM, Diniz-Filho JAF, Telles MPC, Nunes R.   +6 more
europepmc   +2 more sources

Comparative Gynoecium structure and development in Calycanthaceae (Laurales) [PDF]

International Journal of Plant Sciences, 2009
Calycanthaceae, sister to all other Laurales, are the most distinct family of the order in their gynoecium structure (lateral placentation, presence of two ovules). Gynoecium structure was studied in a representative of each genus of Calycanthaceae and gynoecium development in a representative of each of the two subfamilies (Calycanthoideae and ...
Staedler, Yannick M, Weston, Peter H, Endress, Peter K   +2 more
openaire   +2 more sources

The stepwise rise of angiosperm-dominated terrestrial ecosystems. [PDF]

Biol Rev Camb Philos Soc
ABSTRACT Angiosperms are the most diverse and abundant plant taxon today and dominate the majority of Earth's terrestrial ecosystems. They underwent rapid divergence and biogeographic expansion from the early to the middle Cretaceous. Yet, transformative ecosystem change brought about by the increased ecological dominance of angiosperms unfolded ...
Ding W, Silvestro D, Onstein RE, Wu M, Zhou Z, Xing Y.   +5 more
europepmc   +2 more sources

Phylogeny and Systematics of Sassafras (Lauraceae), an Interesting Genus with Disjunct Distributions in Eastern North America and East Asia

Plants, 2023
The Lauraceae is a family of the order Laurales, with 2500–3000 species comprising 50 genera, mainly distributed in tropical and subtropical evergreen broad-leaved forests.
Yunyan Zhang, Jingbo Zhou, David Y. P. Tng, Shuang Wang, Ying Wang, Ye Peng, Hong Liu, Zhongsheng Wang   +7 more
doaj   +1 more source

Fruit structure and systematics of Monimiaceae s.s. (Laurales) [PDF]

Botanical Journal of the Linnean Society, 2007
Fruit structure (anatomy) was studied in 27 species of 15 genera of Monimiaceae s.s . Almost all have apocarpous gynoecia, with the carpels more or less surrounded by a floral cup. The fruitlets are presented on the opened floral cup, which, depending on its pre- and post-floral development, differentially contributes to the attractive part of the ...
MIKHAIL S. ROMANOV, PETER K. ENDRESS, ALEXEY V. F. CH. BOBROV, ALEXANDER P. MELIKIAN, ALEJANDRO PALMAROLA BEJERANO   +4 more
openaire   +1 more source

The Annona montana genome reveals the development and flavor formation in mountain soursop fruit

Ornamental Plant Research, 2023
Annona is a genus of family Annonaceae within the magnoliids and plays a crucial role in revealing the evolution of magnolias. Annona species provide important fruit resources. Here, we report a chromosome-level genome assembly of A.
Guangda Tang, Guizhen Chen, Jianhao Ke, Jieyu Wang, Diyang Zhang, Dingkun Liu, Jie Huang, Sijin Zeng, Miao Liao, Xuefen Wei, Zihao Huang, Minghui Ou, Jian Zeng, Hao Wu, Jie Zheng, Kewei Liu, Weihong Sun, Xuedie Liu, Xia Yu, Xinyu Xu, Xuewei Zhao, Yuanyuan Li, Zhuang Zhao, Deqiang Chen, Qinyao Zheng, Xin He, Mengmeng Zhang, Ye Huang, Cuili Zhang, Minghe Li, Zhiwen Wang, Sagheer Ahmad, Shengxin Chang, Shuangquan Zou, Laiqiang Huang, Donghui Peng, Siren Lan, Zhongjian Liu   +37 more
doaj   +1 more source

The complete chloroplast genome of Cinnamomum camphora and its comparison with related Lauraceae species [PDF]

PeerJ, 2017
Cinnamomum camphora, a member of the Lauraceae family, is a valuable aromatic and timber tree that is indigenous to the south of China and Japan. All parts of Cinnamomum camphora have secretory cells containing different volatile chemical compounds that ...
Caihui Chen, Yongjie Zheng, Sian Liu, Yongda Zhong, Yanfang Wu, Jiang Li, Li-An Xu, Meng Xu   +7 more
doaj   +2 more sources

Endlicheria lhotzkyi (Nees) Mez (Magnoliophyta: Laurales: Lauraceae): first record for the state of Mato Grosso do Sul, Brazil [PDF]

Check List, 2012
Endlicheria lhotzkyi is the first time recorded for the Brazilian state of Mato Grosso do Sul, collected in the municipal district of Sonora, north of the state.
Flávio Alves, Sergianne Frison, Carlos Lehn   +2 more
doaj   +3 more sources

Saportanthus, an Extinct Genus of Laurales from the Early Cretaceous of Portugal [PDF]

International Journal of Plant Sciences, 2017
Premise of research. Numerous exquisitely preserved fossil floral structures recovered from Lower Cretaceous sediments in Portugal are invaluable for understanding the organization and structure of flowers at an early stage in angiosperm evolution. This study analyses three such flowers that add significantly to current knowledge of structural and ...
Friis, Else Marie, Crane, Peter R., Pedersen, Kaj Raunsgaard   +2 more
openaire   +1 more source