Botanica Pacifica最新文献_第4页

When asymmetry mimics zygomorphy: flower development in Chamaelirium japonicum (Melanthiaceae, Liliales) 当不对称模仿颧形:百合花的花发育(桔梗科，百合科)

Botanica Pacifica Pub Date : 2023-01-01 DOI: 10.17581/bp.2023.12s01

M. Remizowa, A. Shipunov, D. Sokoloff

引用次数: 1

Diatoms (Bacillariophyta) of the Tolmachev reservoir (Kamchatka, Russia) 俄罗斯堪察加托尔马切夫水库硅藻(硅藻门)

Botanica Pacifica Pub Date : 2023-01-01 DOI: 10.17581/bp.2023.12101

S. Genkal, E. Lepskaya

引用次数: 1

Phylogenetics of the Paleartic model grass Brachypodium sylvaticum uncovers two divergent oriental and occidental micro-taxa lineages 古北区模式草短茅的系统发育揭示了两个不同的东方和西方微分类群谱系

Botanica Pacifica Pub Date : 2023-01-01 DOI: 10.17581/bp.2023.12119

Pilar Catalán, María Ángeles Decena, R. Sancho, J. Viruel, E. Pérez-Collazos, L. A. Inda, N. Probatova

{"title":"Phylogenetics of the Paleartic model grass Brachypodium sylvaticum uncovers two divergent oriental and occidental micro-taxa lineages","authors":"Pilar Catalán, María Ángeles Decena, R. Sancho, J. Viruel, E. Pérez-Collazos, L. A. Inda, N. Probatova","doi":"10.17581/bp.2023.12119","DOIUrl":"https://doi.org/10.17581/bp.2023.12119","url":null,"abstract":"Brachypodium sylvaticum has been selected as a model for perennial grasses, and considerable genomic resources have been generated and a reference genome and several resequenced pangenome accessions are available for this species. Despite these genomic advances, the evolution and systematics of diploid B. sylvaticum s. l. is almost unknown. The B. sylvaticum complex is formed by up to seven taxonomically close micro-taxa which differentiate from typical B. sylvaticum s. s. based on a few morphological features. Moreover, some of them show some largely disjunct geographic distributions on both sides of their native Palearctic region. In this study, we used a phylogenomic approach including representative populations from the oriental and occidental distribution range of B. sylvaticum micro-taxa to elucidate their evolutionary relationships and assess the systematic value of the morphological features that separate them. A combined plastome and nuclear phylogenetic tree supports an early split and high divergence of the oriental lineage, showing the close relationship of the Himalayan B. sylvaticum var. breviglume lineages to the Pacific B. miserum / B. kurilense clade, and the contrasting large homogeneity and low divergence of the occidental European, N African and SW and C Asian lineage, with several B. sylvaticum s. s., B. spryginii, and B. glaucovirens samples showing identical or similar sequences. Divergence time estimate analysis suggests that the oriental lineage diverged from the common ancestor in the early Pleistocene (2.0 Ma), followed by subsequent colonization and isolations in the Himalayas (2.0 – 1.7 Ma) and the Far East (0.36 Ma) in more recent times, while the occidental lineage split in the Mid-Late Pleistocene (0.97 Ma), followed by rapid radiation and postglacial spread in the western Paleartic during the last thousand years.","PeriodicalId":37724,"journal":{"name":"Botanica Pacifica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67440433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Remarks on the spatial distribution of mycorrhiza in the roots of Epipactis papillosa (Orchidaceae) 兰科野菜根中菌根的空间分布

Botanica Pacifica Pub Date : 2023-01-01 DOI: 10.17581/bp.2023.12s07

Lyudmila S. Kuzminova, M.M. Salnikova, Tatiana N. Vinogradova

引用次数: 0

New varieties of Elymus ciliaris (Poaceae: Triticeae) from the Russian Far East 标题俄罗斯远东地区毛榆属新变种(禾科:小麦科)

Botanica Pacifica Pub Date : 2023-01-01 DOI: 10.17581/bp.2023.12102

E. Shabanova, A. Agafonov

引用次数: 0

Amendments to the description of Chloromonas actinochloris (Chlorophyta) inferred from the study of the South Siberian finding 根据西伯利亚南部发现对放线藻绿单胞菌(Chloromonas actinochloris)描述的修正

Botanica Pacifica Pub Date : 2023-01-01 DOI: 10.17581/bp.2023.12105

I. Egorova, N. Kulakova, O. Boldina

{"title":"Amendments to the description of Chloromonas actinochloris (Chlorophyta) inferred from the study of the South Siberian finding","authors":"I. Egorova, N. Kulakova, O. Boldina","doi":"10.17581/bp.2023.12105","DOIUrl":"https://doi.org/10.17581/bp.2023.12105","url":null,"abstract":"Chlamydomonas-like green microalgae are unicellular biflagellate organisms from the order Volvocales, which are widely distributed in terrestrial ecosystems. Recent studies have shown that they belong to different phylogenetic lineages. The exact establishment of the taxonomic affiliation of these representatives is based on integrative approach, including multigene phylogeny along with light and electron microscopy, which also allows us to get the most accurate information about their biogeography. In this study, we examined the terrestrial green Chlamydomonas-like microalga, isolated from soil of the South-Eastern Altai Mountains in Russia. Based on molecular data of the nuclear 18S and plastid rbcL gene, we refer this alga to Chloromonas actinochloris within a robust clade of the genus Chloromonas, the phylogroup Chloromonadinia. This species was described from North America (USA). It is the first discovery of C. actinochloris in the mountains of Southern Siberia, as well as the first record of the species in Russia confirmed by molecular phylogeny and microscopy methods. The description of C. actinochloris, information on its biology and geography was supplemented. It is generally accepted that the phylogenetic clade including C. actinochloris should be revised and reassigned to a new genus soon. Our study shows that vegetative cells of Chloromonadinia algae can have ornamented cell wall that was mainly known for resting cells (cysts/zygotes) in a number of chlamydomonads, more rarely for vegetative cells. The structures on the wall of vegetative cells of Chlamydomonaslike microalgae can serve as an additional diagnostic criterion.","PeriodicalId":37724,"journal":{"name":"Botanica Pacifica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67439693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Sacciolepis Nash (Poaceae: Panicoideae: Paniceae) – a new genus to the flora of Russia 刺刺蕨(禾科:蕨总科:蕨科)-俄罗斯植物区系新属

Botanica Pacifica Pub Date : 2023-01-01 DOI: 10.17581/bp.2023.12115

E. A. Chubar, N. Probatova

引用次数: 0

Ephemeroid vegetation of the Kulan Plateau in the Badhyz Reserve (Turkmenistan) 土库曼斯坦Badhyz保护区库兰高原的蜉蝣状植被

Botanica Pacifica Pub Date : 2023-01-01 DOI: 10.17581/bp.2023.12110

N. Polyakova, Y. Golovanov, S. Yamalov, M. Lebedeva, Z. Shigapov

{"title":"Ephemeroid vegetation of the Kulan Plateau in the Badhyz Reserve (Turkmenistan)","authors":"N. Polyakova, Y. Golovanov, S. Yamalov, M. Lebedeva, Z. Shigapov","doi":"10.17581/bp.2023.12110","DOIUrl":"https://doi.org/10.17581/bp.2023.12110","url":null,"abstract":"The results of long-terms vegetation studies of the Kulan plateau, which is located in the Badhyz reserve in the southeastern Turkmenistan, are presented. The geographical position of the region and the diversity of landscapes promoted to the formation of the specific flora, represented by various groups of Mediterranean, Iranian, Turanian, as well as Middle and Central Asian species. Very specific ephemeroid plant communities with Poa bulbosa и Carex pachystylis dominated in lower layer were syntaxonomically studied for the first time. The upper layer includes the tall herbs, especially Ferula badrakema, an endemic species of Badhyz. Communities were classified as the suballiance Poo bulbosae– Ferulenion badrakemii suball. nov. of the alliance Vulpio persicae–Caricion pachystylidis Świerszcz et al. 2020 of the order Cymbopogono–Brachypodietalia ramosi Horvatič 1963 of the class Lygeo sparti–Stipetea tenacissimae Rivas-Mart. 1978 nom. conserv. propos. Сommunities of grasses on slight turf sands are classified as part of the provisional alliance Stipagrostion pennati prov. The position of the alliance in the system of high-rank syntaxa has not yet been determined. The 5 new associations and 6 subassociations were allocated.","PeriodicalId":37724,"journal":{"name":"Botanica Pacifica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67440270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Genetic diversity of the Rhododendron subsection Ledum species in Sakhalin Island: data from chloroplast DNA markers variability 库页岛杜鹃花亚段Ledum种的遗传多样性:叶绿体DNA标记变异的数据

Botanica Pacifica Pub Date : 2023-01-01 DOI: 10.17581/bp.2023.12209

Diana R. Iunusova, Maria A. Polezhaeva, Elena A. Marchuk

{"title":"Genetic diversity of the Rhododendron subsection Ledum species in Sakhalin Island: data from chloroplast DNA markers variability","authors":"Diana R. Iunusova, Maria A. Polezhaeva, Elena A. Marchuk","doi":"10.17581/bp.2023.12209","DOIUrl":"https://doi.org/10.17581/bp.2023.12209","url":null,"abstract":"A high genetic variability was revealed in the populations of the Rhododendron subsection Ledum species complex in Sakhalin. In total, 94 individuals from natural populations of the four sympatric species of Labrador tea (R. tomentosum, R. subarcticum, R. tolmachevii and R. hypoleucum) were analyzed to evaluate the genetic variation in the territory of the Sakhalin Island and in two mainland populations. The haplotype diversity of five chloroplast intergenic spacers (trnH–psbA, petB–petD, 3’trnV (UAC)–ndhC, K2R–K707, atpB–rbcL) was quite high. There were 16 haplotypes (h1–h16) identified; h1, h2 and h4 are the most common, the rest were rare and no species-specific ones were found. Analysis of Molecular Variance (AMOVA) indicate that about 37 % of the genetic diversity is due to among population differences (FST = 0.37, p < 0.001). Molecular phylogenetic analysis based on chloroplast DNA data did not reveal a clear species structure, but revealed a trend towards the isolation of two genetic groups: including a group of samples from the southern and the middle parts of Sakhalin Island.","PeriodicalId":37724,"journal":{"name":"Botanica Pacifica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135317702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Syntaxonomic notes on the order Ledo palustris–Laricetalia (Siberian boreal cryo-mesophilous larch forests): validation and description Ledo palustri - laricetalia目(西伯利亚寒冰中温落叶松林)的分类学注释:验证与描述

Botanica Pacifica Pub Date : 2023-01-01 DOI: 10.17581/bp.2023.12108

N. Ermakov

引用次数: 2