Results 61 to 70 of about 5,572 (153)
Molecular phylogenetics of Fissistigma Griffith（Annonaceae） [PDF]
, 2016 瓜馥木属FissistigmaGriffith隶属于番荔枝科（Annonaceae），全世界约有50多种，广泛分布于亚洲的热带和亚热带地区。该属虽然种数不多，但缺乏专门分类学修订，存在不少分类问题，至今仍没有属下分类系统。本研究利用分子系统学的实验方法，结合标本研究，对瓜馥木属内26种植物的种间关系进行了探讨，对个别种进行分类学处理，为该属后续研究提供基础资料。 本研究对26种瓜馥木属植物叶绿体DNA片段进行了DNA提取、扩增和序列测定（包括cpDNA的rbcL、matK、trnL-trnF以及psbA-
薛文鹏
core
Hybridization, polyploidy, and evolutionary transitions between monoecy and dioecy in Bryonia (Cucurbitaceae) [PDF]
, 2008 Correns’s 1903 (Berichte der Deutschen Botanischen Gesellschaft 21: 133 – 147) crosses between a monoecious and a dioecious species of Bryonia revealed the simple Mendelian inheritance of dioecy and provided the first instance of an XY sex determination ...
Renner, Susanne S., Volz, Stefanie M.
core +1 more source
Dietary DNA Metabarcoding From Animal Fecal Samples
Current Protocols, Volume 6, Issue 1, January 2026.Abstract Fecal DNA metabarcoding is a powerful tool for examining animal diets with unprecedented resolution, offering insights into ecological patterns shaped by trophic interactions. As a result, dietary metabarcoding has become widely applied across ecology, evolution, behavior, and conservation.
Rachel D. McConnell +6 more
wiley +1 more source
Ecology and Evolution, Volume 16, Issue 1, January 2026.Based on morphological and chloroplast phylogenomic analyses, we describe Aletris medogensis as a new species endemic to the eastern Himalayas. Comparative genomics revealed structural variations, hypervariable markers, and signatures of positive selection in key genes, providing robust evidence for species delimitation and insights into the ...
Xiong Li +5 more
wiley +1 more source
Phylogeny of Dyschoriste (Acanthaceae) [PDF]
, 2015 The pantropical and poorly known genus Dyschoriste (Acanthaceae) is sister to Strobilanthopsis within subtribe Petalidiinae. The present study included 38 accessions of 28 species as sources of DNA data for one nuclear (nrITS) and four chloroplast ...
Chumchim, Noravit +2 more
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Biomedical and Biotechnology Research JournalBackground: Cinnamomum parthenoxylon is an important component of tropical Vietnam and has major ecological and economic significance, which has been threatened in recent decades due to the destruction of its habitat and overexploitation. Methods: In the
Dinh Duy Vu +6 more
doaj +1 more source
PLoS ONE, 2018 Melilotus is an important genus of legume plants and an herbage with excellent nitrogen fixation; it can tolerate extreme environmental conditions and possesses important medicinal value.
Hongxiang Zhang +9 more
doaj +1 more source
Multiple independent origins of auto-pollination in tropical orchids (Bulbophyllum) in light of the hypothesis of selfing as an evolutionary dead end [PDF]
, 2015 Background: The transition from outcrossing to selfing has long been portrayed as an ‘evolutionary dead end because, first, reversals are unlikely and, second, selfing lineages suffer from higher rates of extinction owing to a reduced potential for ...
Alexander Gamisch +2 more
core +3 more sources
, 2007 The plastid trnL-F region has proved useful in molecular phylogenetic studies addressing diverse evolutionary questions from biogeographic history to character evolution in a broad range of plant groups.
Bakker, Freek T +4 more
core +1 more source
PLoS ONE, 2010 BackgroundDNA barcoding is expected to be an effective identification tool for organisms with heteromorphic generations such as pteridophytes, which possess a morphologically simple gametophyte generation. Although a reference data set including complete
Atsushi Ebihara +2 more
doaj +1 more source