Phylogenomics and classification of Cactaceae based on hundreds of nuclear genes [0.03%]
基于数百个核基因的仙人掌科系统发育组学和分类研究
Jurriaan M de Vos,Urs Eggli,Reto Nyffeler et al.
Jurriaan M de Vos et al.
Phylogenetic classification based on evolutionary relationships is the standard approach in systematics, but Cactaceae has posed significant challenges due to the signature of its rapid radiation: low sequence divergence hindering phylogene...
Phylogenomics of the pantropical Connaraceae: revised infrafamilial classification and the evolution of heterostyly [0.03%]
Connaraceae 植物的系统发生及异形花药性状进化与亚属分类研究
Jurriaan M de Vos,Serafin J R Streiff,Julien B Bachelier et al.
Jurriaan M de Vos et al.
Connaraceae is a pantropical family of about 200 species containing lianas and small trees with remarkably diverse floral polymorphisms, including distyly, tristyly, homostyly, and dioecy. To date, relationships within the family have not b...
Callose in sporogenesis: Novel composition of the inner spore wall in hornworts [0.03%]
角叉菜素在孢子发生过程中的作用——轮藻纲内层细胞壁的新组成成分
Renzaglia Ks,Lopez Ra,Welsh Rd et al.
Renzaglia Ks et al.
Sporogenesis is a developmental process that defines embryophytes and involves callose, especially in the production of the highly protective and recalcitrant spore/pollen wall. Until now, hornworts, leptosporangiate ferns and homosporous l...
Genome-wide repeat dynamics reflect phylogenetic distance in closely related allotetraploid Nicotiana (Solanaceae) [0.03%]
基因组范围的重复序列动态反映密切相关的四倍体Nicotiana（茄科）间的系统发育距离
Steven Dodsworth,Tae-Soo Jang,Monika Struebig et al.
Steven Dodsworth et al.
Nicotiana sect. Repandae is a group of four allotetraploid species originating from a single allopolyploidisation event approximately 5 million years ago. Previous phylogenetic analyses support the hypothesis of N. nudicaulis as sister to t...
Pathways to polyploidy: indications of a female triploid bridge in the alpine species Ranunculus kuepferi (Ranunculaceae) [0.03%]
有关多倍体的进化途径：高山物种毛蕊花患难草（Ranunculaceae）存在三倍体雌性的迹象
Christoph C F Schinkel,Bernhard Kirchheimer,Stefan Dullinger et al.
Christoph C F Schinkel et al.
Polyploidy is one of the most important evolutionary processes in plants. In natural populations, polyploids usually emerge from unreduced gametes which either fuse with reduced ones, resulting in triploid offspring (triploid bridge), or wi...
Fagaceae pollen from the early Cenozoic of West Greenland: revisiting Engler's and Chaney's Arcto-Tertiary hypotheses [0.03%]
西格陵兰早期新近纪的壳斗花粉科：重新审视恩格勒和香尼的北区第三纪假说
Friðgeir Grímsson,Reinhard Zetter,Guido W Grimm et al.
Friðgeir Grímsson et al.
In this paper we document Fagaceae pollen from the Eocene of western Greenland. The pollen record suggests a remarkable diversity of the family in the early Cenozoic of Greenland. Extinct Fagaceae pollen types include Eotrigonobalanus, whic...
Malagasy Dracaena Vand. ex L. (Ruscaceae): an investigation of discrepancies between morphological features and spatial genetic structure at a small evolutionary scale [0.03%]
德拉肯纳属马尔加什植物（龙血树科）：形态特征与小进化尺度空间遗传结构差异性的研究
Sven Buerki,Martin W Callmander,Fanny Schüpfer et al.
Sven Buerki et al.
Malagasy Dracaena (Ruscaceae) are divided into four species and 14 varieties, all of them showing a high level of morphological diversity and a putatively artefactual circumscription. In order to reveal relationships between those entangled...
Chromosome numbers in Tripleurospermum Sch. Bip. (Asteraceae) and closely related genera: relationships between ploidy level and stomatal length [0.03%]
Tripleurospermum Sch. Bip. (Asteraceae)及其近缘属的染色体数目：染色体级别与气孔长度的关系
Huseyin Inceer,Sema Hayirlioglu-Ayaz
Huseyin Inceer
This study includes 24 reports of chromosome counts in Tripleurospermum Sch. Bip. (20 taxa), Anthemis L. (1 species) and Matricaria L. (3 taxa) belonging to the tribe Anthemideae of the family Asteraceae from Turkey. Chromosome numbers of t...