黟县泡果荠 新种 图版1:A Hilliella yixianensis Y. H. Zhang, sp. nov. H. paradoxa (Hance) Y. H. Zhang et H. W. Li ab specie nova recedit foliolis ma-joribus, pedicellis brevioribus c. 2 mm longis sub fructu 2—3 mm long...黟县泡果荠 新种 图版1:A Hilliella yixianensis Y. H. Zhang, sp. nov. H. paradoxa (Hance) Y. H. Zhang et H. W. Li ab specie nova recedit foliolis ma-joribus, pedicellis brevioribus c. 2 mm longis sub fructu 2—3 mm longis, sepalis navicu-laribus majoribus c. 2 mm longis 1 mm latis, petalis longioribus (2. 8—3. 3 mm longis), sili-culis valvis irregularibus interdum praeditis.展开更多
The taxonomic treatment within the unigeneric tribe Yinshanieae （Brassicaceae） is controversial, owing to differences in generic delimitation applied to its species. In this study, sequences from nuclear ITS and chl...The taxonomic treatment within the unigeneric tribe Yinshanieae （Brassicaceae） is controversial, owing to differences in generic delimitation applied to its species. In this study, sequences from nuclear ITS and chloroplast trnL-F regions were used to test the monophyly of Yinshanieae, while two nuclear markers （ITS, ETS） and four chloroplast markers （trnL-F, trnH-psbA, rps16, rpL32-trnL） were used to elucidate the phylogenetic relationships within the tribe. Using maximum parsimony, maximum likelihood, and Bayesian inference methods, we reconstructed the phylogeny of Brassicaceae and Yinshanieae. The results show that Yinshanieae is not a monophyletic group, with the taxa splitting into two distantly related clades： one clade contains four taxa and falls in Lineage 1, whereas the other includes all species previously placed in Hilliella and is embedded in the Expanded Lineage Ⅱ. The tribe Yinshanieae is redefined, and a new tribe, Hillielleae, is proposed based on combined evidence from molecular phy logeny, morphology, and cytology.展开更多
文摘黟县泡果荠 新种 图版1:A Hilliella yixianensis Y. H. Zhang, sp. nov. H. paradoxa (Hance) Y. H. Zhang et H. W. Li ab specie nova recedit foliolis ma-joribus, pedicellis brevioribus c. 2 mm longis sub fructu 2—3 mm longis, sepalis navicu-laribus majoribus c. 2 mm longis 1 mm latis, petalis longioribus (2. 8—3. 3 mm longis), sili-culis valvis irregularibus interdum praeditis.
基金the National Natural Science Foundation of China for the grant NSFC-31170181 to J.P.Yuethe Major Program of National Natural Science Foundation of China (31590823 to Hang Sun)
文摘The taxonomic treatment within the unigeneric tribe Yinshanieae （Brassicaceae） is controversial, owing to differences in generic delimitation applied to its species. In this study, sequences from nuclear ITS and chloroplast trnL-F regions were used to test the monophyly of Yinshanieae, while two nuclear markers （ITS, ETS） and four chloroplast markers （trnL-F, trnH-psbA, rps16, rpL32-trnL） were used to elucidate the phylogenetic relationships within the tribe. Using maximum parsimony, maximum likelihood, and Bayesian inference methods, we reconstructed the phylogeny of Brassicaceae and Yinshanieae. The results show that Yinshanieae is not a monophyletic group, with the taxa splitting into two distantly related clades： one clade contains four taxa and falls in Lineage 1, whereas the other includes all species previously placed in Hilliella and is embedded in the Expanded Lineage Ⅱ. The tribe Yinshanieae is redefined, and a new tribe, Hillielleae, is proposed based on combined evidence from molecular phy logeny, morphology, and cytology.
