monophyletic group 中文意思是什麼

monophyletic group 解釋
單系類群
  • monophyletic : adj. 1. 一源的,單種的。2. 由同一新型演化的。n. -phyletism
  • group : n 1 群；批，簇。2 集團，團體，小組。3 【化學】基，團，組；（周期表的）屬，族。4 （雕塑等的）群像...
  1. 3 the comparison of mitochondrial genomes and phylogentic relationships of amphibian there still is a lack of consensus regarding living amphibian phylogenetic relationships. the most widely accepted hypothesis, based on morphological data, supports the monophyletic origin in the late paleozoic ( 300 mya ) of the three living orders in the class amphibia and a sister - group relationship between caudata and anura ( the batrachia hypothesis ) to the exclusion of the gymnophiona

    3兩棲類動物的線粒體基因組結構比較和系統發生關系現存兩棲類的三個目的系統發生關系仍然沒有統一意見，最廣泛被接受的假說，是建立在形態學證據基礎上，支持現生的兩棲類三個目在古生代後期（ 300mya ）單系起源，並且無尾類和有尾類為姐妹群關系（蛙類假說） 。
  2. And supports to the establishment of a separate genus neoeriocheir, but does not provide justification for the recognition of platyeriocheir. the results provided more evidence of the conspecific status of three taxa : e. japonica, e. sinensis and e. hepuensis. the mitten crabs distributed in china and okinawa of japan constitute a monophyletic group sister to e. japonica from osaka of japan suggested that two subspecies of e. japonica : e. j

    基於線粒體16srdna部分序列的系統發生分析支持日本絨螫蟹、中華絨螯蟹與合浦絨螯蟹合併為一個物種，即日本絨螯蟹（ e . japonica ） ，分佈於中國和日本沖繩的絨螯蟹與分佈在日本大阪的絨螯蟹構成姊妹群，提示日本絨螯蟹可能包含2個亞種，即日本絨螯蟹指名亞種（ e . j . japonica ）和中華亞種（ e . j . sinensis ） 。
  3. The results showed that a. hookeri was a monophyletic group which supported the existence of species of a. hookeri and all the populations of a. hookeri were divided into two groups which were identical with the habitus of withering in the winter and not withering in the winter and highly related to ploidy and habitat ( altitude )

    徹汁韭明顯分為兩大分支，這與寬葉韭的冬季倒茵和冬季不倒苗的兩種生活習性亢全一致，與寬葉韭的倍性和生境（海拔）密切相關。
  4. ( 4 ) the molecular phylogenetic trees suggest that bagrid catfishes form a monophyletic group, and the genus mystus is the earliest divergent in east asian bagrid catfishes, as well as the genus pseudobagrus is a monophyletic group but the genus pelteobagrus and leiocassis are complicated

    ?科構成一單系類群，其中蠖屬為較為特化的屬，擬?屬為一明顯的類群，而黃顙魚屬和?屬關系較為混亂。
  5. The phylogenetic trees promulgate that : ( a ) est traits significantly differ between different generic taxa and between different species in the same genus, ( b ) similarity degree of est traits between different taxa is not correlative to that of morphological characters. some morphological taxa in traditional classification are not monophyletic group, ( c ) relationship among subfamilies based on est characters is somewhat compatible to intrafamily phylogeny proposed by schuh ( 1976 ), but it is clear that orthotylinae and phylinae are not directly sister grouped

    分析結果表明（ 1 ）酯酶同工酶酶譜特徵在不同屬級單元之間以及同屬的不同種類之間都存在著明顯的差異： （ 2 ）不同屬種之間酯酶同工酶特徵的相似程度與外部形態特徵之間的相似程度不一致性，以外部形態為主要依據的傳統分類的一些屬不是真正的單系群。
  6. Cytochrome b gene compared with characiforms, cypriniforms and salmoniforms ; ( 2 ) the molecular phylogenetic trees suggest that siluriforms form a monophyletic group and have a close relationship with characiforms ; ( 3 ) the families of pangasiidae, claroteidae, ictaluridae, cranoglanididae, schilbidae and clariidae form a monophyletic group in the three molecular phylogenetic trees. the family bagridae branched with schilbidae which comes from china ; the family akysidae branched with amblycipitidae, but the phylogenetic positions of the families siluridae, sisoridae and pimelodidae are not recognised

    魚芒科、棘脂?科、叉尾?科、長臀?科、刀鯰科與鬍子鯰科在三種方法構建的分子系統樹中均結合在一起，形成一大單系群； ?科均與來自中國的刀鯰科魚類聚在一起；粒鯰科與鈍頭跪科也均聚在一起；但鯰科、 ?科和油鯰科的系統發育位置不定。
  7. The chilopoda and diplopoda are monophyletic group respectively. although there are some limitations, the mitochondrial dna as a model system is being used as a powerful tool in phylogeny analysis. it is the only molecular marker that can be used in the phylogenetic studies at genomic level

    線粒體dna基因組全序列作為研究動物系統發生的模式系統，雖然有一定的缺陷，但仍是生物學家研究系統進化最有力的工具，它是目前唯一可以提供基因組水平上進行系統發生研究的分子標記。
  8. Trifurcatum ought to be kicked out from this sect ; ( 3 ) a monophyletic group of x = 11 species was shown in the its tree ; ( 4 ) a. fasciculatum had a close relationship with x = 11 species ; ( 5 ) a. wallichii and a. macranthum had different evolution processes, their relationship was not so related ; ( 6 ) the sensible components of sect

    採用鄰接法（ neighborjoiningmethod ） 、非加權配對算術平均法（ upgma ） 、最大簡約法（ mostparsirnonymethod ） 、最小進化法（ mininmmevolutionmethod ）和最大似然法（ maximumlikelihoodmethod ） ，通過定義和不定義外類群，以及選擇不同數量的外類群對所得的序列數據進行分析，重建了分子系統樹。
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