Pablo Muñoz-Rodríguez,John R I Wood,Tom Wells et al.
Pablo Muñoz-Rodríguez et al.
Big genera represent a significant proportion of the world's plants. However, comprehensive taxonomic and evolutionary studies of these genera are often complicated by their size and geographic spread. This paper explores the challenges fac...
Molecular delimitation of clades within New World species of the "spiny solanums" (Solanum subg. Leptostemonum) [0.03%]
新世界带刺茄的分子系统学研究(Solanum subg. Leptostemonum)
Stephen Stern,Maria de Fátima Agra,Lynn Bohs
Stephen Stern
Solanum subg. Leptostemonum contains approximately 350-450 species, including the cultivated eggplant, S. melongena. Most species placed in this subgenus form a monophyletic group, the Leptostemonum clade, characterized by the presence of s...
Sexual intraspecific recombination but not de novo origin governs the genesis of new apomictic genotypes in Potentilla puberula (Rosaceae) [0.03%]
牻牛儿苗属植物毛叶杠柳(Potentilla puberula)中新的无融合生殖基因型由性重组产生,而非从头起源
Flavia Domizia Nardi,Christoph Dobeš,Dorothee Müller et al.
Flavia Domizia Nardi et al.
Apomixis - asexual reproduction via seeds - might arise de novo following polyploidisation events, or via reproductive transfer of apomixis. Both processes can be obtained within species or via hybridisation. We aimed to determine the origi...
Pollen precedence in sexual Potentilla puberula and its role as a protective reproductive barrier against apomictic cytotypes [0.03%]
有性生殖的细梗银莲花花粉先到效应及其作为保护生殖屏障阻止无融合生殖倍性的机制研究
Henar Alonso-Marcos,Karl Hülber,Tuuli Myllynen et al.
Henar Alonso-Marcos et al.
Cross-pollination is a major factor determining the demographic dynamics of mixed-ploidy populations. Typically, rare cytotypes are suppressed due to reduced female fertility by losing gametes in heteroploid crosses (i.e., through minority ...
Schismatoglottis and Apoballis (Araceae: Schismatoglottideae): A new example for the significance of pollen morphology in Araceae systematics [0.03%]
球子目下的薛氏饱баллис和叉唇乌头属(天南星科):花粉形态在天南星科系统发育中的重要性新例证
Silvia Ulrich,Michael Hesse,David Bröderbauer et al.
Silvia Ulrich et al.
Pollen characters in Araceae accord well with recent DNA-based phylogenies, and here we provide a new example of "compass needle" quality in Araceae on the basis of two closely related genera, Schismatoglottis and Apoballis. All investigate...
Calla palustris (Araceae): New palynological insights with special regard to its controversial systematic position and to closely related genera [0.03%]
花叶芋(天南星科):新的花粉学见解及其系统地位和相关属的争议性问题特殊考虑
Silvia Ulrich,Michael Hesse,David Bröderbauer et al.
Silvia Ulrich et al.
Almost all systematic treatments agree that Calla is a puzzling case, being a highly autapomorphic taxon with obscure relationships. In molecular-based classifications the variable placements of Calla within Aroideae conflict strongly with ...
(2302) Proposal to reject the name Gonyaulax catenella (Alexandrium catenella) (Dinophyceae) [0.03%]
关于拒绝采用原甲藻属胶束种(Gonyaulax catenella(Alexandrium catenella))名称的提案
Uwe John,Wayne Litaker,Marina Montresor et al.
Uwe John et al.
Ovidiu Paun,Félix Forest,Michael F Fay et al.
Ovidiu Paun et al.
Genetic and epigenetic alterations after hybridization and genome doubling [0.03%]
杂交和基因组加倍后的遗传和表观遗传改变
Ovidiu Paun,Michael F Fay,Douglas E Soltis et al.
Ovidiu Paun et al.
Hybridization and polyploidization are now recognized as major phenomena in the evolution of plants, promoting genetic diversity, adaptive radiation and speciation. Modern molecular techniques have recently provided evidence that allopolypl...
Reticulate evolution and taxonomic concepts in the Ranunculus auricomus complex (Ranunculaceae): insights from analysis of morphological, karyological and molecular data [0.03%]
基于形态学、细胞学和分子数据的毛蕊花属auricomus复合群体的网状进化及分类概念研究
Elvira Hörandl,Johann Greilhuber,Katarina Klímová et al.
Elvira Hörandl et al.
The Ranunculus auricomus complex is an interesting model system for studying the evolution and diversity of apomictic polyploid complexes. It comprises hundreds of agamospecies, usually referred to two distinct morphotypes (traditionally na...