Fruits are the defining feature of angiosperms, likely have contributed to angiosperm successes b... more Fruits are the defining feature of angiosperms, likely have contributed to angiosperm successes by protecting and dispersing seeds, and provide foods to humans and other animals, with many morphological types and important ecological and agricultural implications. Rosaceae is a family with ~3000 species and an extraordinary spectrum of distinct fruits, including fleshy peach, apple, and strawberry prized by their consumers, as well as dry achenetum and follicetum with features facilitating seed dispersal, excellent for studying fruit evolution. To address Rosaceae fruit evolution and other questions, we generated 125 new transcriptome and genomic datasets and identified hundreds of nuclear genes to reconstruct a well-resolved Rosaceae phylogeny with highly supported monophyly of all subfamilies and tribes. Molecular clock analysis revealed an estimated age of ~101.6 Mya for crown Rosaceae and divergence times of tribes and genera, providing a geological and climate context for fruit...
Wen, Jun, Lowry Ii, Porter P. (2002): Aralia hiepiana J. Wen & Lowry, a new species of Araliaceae... more Wen, Jun, Lowry Ii, Porter P. (2002): Aralia hiepiana J. Wen & Lowry, a new species of Araliaceae from Vietnam. Adansonia (3) 24 (2): 213-216, DOI: http://doi.org/10.5281/zenodo.5180749
Phylogenetic studies have shown that most clades in Prunus are well-supported by the flower struc... more Phylogenetic studies have shown that most clades in Prunus are well-supported by the flower structure, but most taxa in the racemose group have not yet been re-evaluated and could contribute to the understanding of the systematic relationships of the subgenera. We examined the inflorescence and flower development in Prunus laurocerasus L. (subgenus Laurocerasus) and P. serotina Ehrh. (subgenus Padus I) using scanning electron microscopy. Our results indicate that they share several floral development characters but differ in the following aspects: (i) all of their flowers are fully developed and each flower is enclosed by a bract and two bracteoles, which later stop development (vs. the terminal flower degenerates and only a single bract subtends each flower); (ii) the style protrudes from the floral bud (vs. the style is crooked and below the anthers); (iii) the outer integument initiates close to the inner one (vs. in the middle of the ovule); and (iv) an obturator appears after i...
As part of the integrative systematic studies on the tribe Maleae, a synopsis of the expanded Rha... more As part of the integrative systematic studies on the tribe Maleae, a synopsis of the expanded Rhaphiolepis is presented, recognizing 45 species. Three new forms were validated: R. bengalensis f. contracta B.B.Liu & J.Wen, R. bengalensis f. intermedia B.B.Liu & J.Wen, and R. bengalensis f. multinervata B.B.Liu & J.Wen, and four new combinations are made here: R. bengalensis f. angustifolia (Cardot) B.B.Liu & J.Wen, R. bengalensis f. gigantea (J.E.Vidal) B.B.Liu & J.Wen, R. laoshanica (W.B.Liao, Q.Fan & S.F.Chen) B.B.Liu & J.Wen, and R. latifolia (Hook.f.) B.B.Liu & J.Wen. Furthermore, one new name, Rhaphiolepis yui B.B.Liu & J.Wen is proposed here, and three taxa were reduced as new synonyms. We also provide lectotypification for 13 names: Crataegus bibas, Eriobotrya philippinensis, Mespilus spiralis, Opa integerrima, Photinia luzonensis, Rhaphiolepis brevipetiolata, R. ferruginea var. serrata, R. fragrans, R. gracilis, R. hainanensis, R. kerrii, R. indica subsp. umbellata var. liuki...
As part of a comprehensive systematic study on the genusEriobotryaand its close relatives from th... more As part of a comprehensive systematic study on the genusEriobotryaand its close relatives from the E & SE Asia, new typifications of 23 names are presented here, along with some nomenclatural notes of the names involved. We lectotypified 22 names including accepted names and synonyms. They are:E. acuminatissima, E. bengalensis var. angustifolia; E. bengalensis f. intermedia,E. brackloi, E. brackloi var. atrichophylla, E. elliptica var. petelotii, E. fragrans var. furfuracea,E. glabrescens,E. grandiflora,E. henryi,E. oblongifolia,E. petiolata,E. platyphylla,E. poilanei,E. prinoides, E. prinoides var. laotica,E. salwinensis,E. serrata,E. stipularis,Hiptage cavaleriei,Photinia longifolia,Symplocos seguinii. One neotype ofPhotinia dubiawas also proposed in this study, andE. pseudoraphiolepisandMespilus cuilawere identified as superfluous names. In addition, we also summarized the typification of 18 names for taxonomic reference:E. angustissima,E. balgooyi,E. condaoensis,E. × daduheensis...
Eleusine (Poaceae) is a small genus of the subfamily Chloridoideae exhibiting considerable morpho... more Eleusine (Poaceae) is a small genus of the subfamily Chloridoideae exhibiting considerable morphological and ecological diversity in East Africa and the Americas. The interspecific phylogenetic relationships of Eleusine are investigated in order to identify its allotetraploid origin, and a chronogram is estimated to infer temporal relationships between palaeoenvironment changes and divergence of Eleusine in East Africa. Two low-copy nuclear (LCN) markers, Pepc4 and EF-1α, were analysed using parsimony, likelihood and Bayesian approaches. A chronogram of Eleusine was inferred from a combined data set of six plastid DNA markers (ndhA intron, ndhF, rps16-trnK, rps16 intron, rps3, and rpl32-trnL) using the Bayesian dating method. The monophyly of Eleusine is strongly supported by sequence data from two LCN markers. In the cpDNA phylogeny, three tetraploid species (E. africana, E. coracana and E. kigeziensis) share a common ancestor with the E. indica-E. tristachya clade, which is consid...
Fruits are the defining feature of angiosperms, likely have contributed to angiosperm successes b... more Fruits are the defining feature of angiosperms, likely have contributed to angiosperm successes by protecting and dispersing seeds, and provide foods to humans and other animals, with many morphological types and important ecological and agricultural implications. Rosaceae is a family with ~3000 species and an extraordinary spectrum of distinct fruits, including fleshy peach, apple, and strawberry prized by their consumers, as well as dry achenetum and follicetum with features facilitating seed dispersal, excellent for studying fruit evolution. To address Rosaceae fruit evolution and other questions, we generated 125 new transcriptome and genomic datasets and identified hundreds of nuclear genes to reconstruct a well-resolved Rosaceae phylogeny with highly supported monophyly of all subfamilies and tribes. Molecular clock analysis revealed an estimated age of ~101.6 Mya for crown Rosaceae and divergence times of tribes and genera, providing a geological and climate context for fruit...
Wen, Jun, Lowry Ii, Porter P. (2002): Aralia hiepiana J. Wen & Lowry, a new species of Araliaceae... more Wen, Jun, Lowry Ii, Porter P. (2002): Aralia hiepiana J. Wen & Lowry, a new species of Araliaceae from Vietnam. Adansonia (3) 24 (2): 213-216, DOI: http://doi.org/10.5281/zenodo.5180749
Phylogenetic studies have shown that most clades in Prunus are well-supported by the flower struc... more Phylogenetic studies have shown that most clades in Prunus are well-supported by the flower structure, but most taxa in the racemose group have not yet been re-evaluated and could contribute to the understanding of the systematic relationships of the subgenera. We examined the inflorescence and flower development in Prunus laurocerasus L. (subgenus Laurocerasus) and P. serotina Ehrh. (subgenus Padus I) using scanning electron microscopy. Our results indicate that they share several floral development characters but differ in the following aspects: (i) all of their flowers are fully developed and each flower is enclosed by a bract and two bracteoles, which later stop development (vs. the terminal flower degenerates and only a single bract subtends each flower); (ii) the style protrudes from the floral bud (vs. the style is crooked and below the anthers); (iii) the outer integument initiates close to the inner one (vs. in the middle of the ovule); and (iv) an obturator appears after i...
As part of the integrative systematic studies on the tribe Maleae, a synopsis of the expanded Rha... more As part of the integrative systematic studies on the tribe Maleae, a synopsis of the expanded Rhaphiolepis is presented, recognizing 45 species. Three new forms were validated: R. bengalensis f. contracta B.B.Liu & J.Wen, R. bengalensis f. intermedia B.B.Liu & J.Wen, and R. bengalensis f. multinervata B.B.Liu & J.Wen, and four new combinations are made here: R. bengalensis f. angustifolia (Cardot) B.B.Liu & J.Wen, R. bengalensis f. gigantea (J.E.Vidal) B.B.Liu & J.Wen, R. laoshanica (W.B.Liao, Q.Fan & S.F.Chen) B.B.Liu & J.Wen, and R. latifolia (Hook.f.) B.B.Liu & J.Wen. Furthermore, one new name, Rhaphiolepis yui B.B.Liu & J.Wen is proposed here, and three taxa were reduced as new synonyms. We also provide lectotypification for 13 names: Crataegus bibas, Eriobotrya philippinensis, Mespilus spiralis, Opa integerrima, Photinia luzonensis, Rhaphiolepis brevipetiolata, R. ferruginea var. serrata, R. fragrans, R. gracilis, R. hainanensis, R. kerrii, R. indica subsp. umbellata var. liuki...
As part of a comprehensive systematic study on the genusEriobotryaand its close relatives from th... more As part of a comprehensive systematic study on the genusEriobotryaand its close relatives from the E & SE Asia, new typifications of 23 names are presented here, along with some nomenclatural notes of the names involved. We lectotypified 22 names including accepted names and synonyms. They are:E. acuminatissima, E. bengalensis var. angustifolia; E. bengalensis f. intermedia,E. brackloi, E. brackloi var. atrichophylla, E. elliptica var. petelotii, E. fragrans var. furfuracea,E. glabrescens,E. grandiflora,E. henryi,E. oblongifolia,E. petiolata,E. platyphylla,E. poilanei,E. prinoides, E. prinoides var. laotica,E. salwinensis,E. serrata,E. stipularis,Hiptage cavaleriei,Photinia longifolia,Symplocos seguinii. One neotype ofPhotinia dubiawas also proposed in this study, andE. pseudoraphiolepisandMespilus cuilawere identified as superfluous names. In addition, we also summarized the typification of 18 names for taxonomic reference:E. angustissima,E. balgooyi,E. condaoensis,E. × daduheensis...
Eleusine (Poaceae) is a small genus of the subfamily Chloridoideae exhibiting considerable morpho... more Eleusine (Poaceae) is a small genus of the subfamily Chloridoideae exhibiting considerable morphological and ecological diversity in East Africa and the Americas. The interspecific phylogenetic relationships of Eleusine are investigated in order to identify its allotetraploid origin, and a chronogram is estimated to infer temporal relationships between palaeoenvironment changes and divergence of Eleusine in East Africa. Two low-copy nuclear (LCN) markers, Pepc4 and EF-1α, were analysed using parsimony, likelihood and Bayesian approaches. A chronogram of Eleusine was inferred from a combined data set of six plastid DNA markers (ndhA intron, ndhF, rps16-trnK, rps16 intron, rps3, and rpl32-trnL) using the Bayesian dating method. The monophyly of Eleusine is strongly supported by sequence data from two LCN markers. In the cpDNA phylogeny, three tetraploid species (E. africana, E. coracana and E. kigeziensis) share a common ancestor with the E. indica-E. tristachya clade, which is consid...
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