Multivariate morphometrics was conducted on the endemic asian genus sinibrama wu , 1939 in east asia in order to investigate the morphological variations among the 4 nominal species and subspecies known from south china . principal component analysis ( pca ) was performed respectively for seven meristic and thirty - two morphometric characters that were based on 224 specimens 運(yùn)用多變量形態(tài)度量學(xué)方法,研究東亞特有魚類類群?華鳊屬魚類的形態(tài)差異,對(duì)其在分類學(xué)上存在疑問(wèn)的物種的不同地理居群的18個(gè)框架測(cè)量距離、 14個(gè)常規(guī)測(cè)量距離和7個(gè)可數(shù)性狀進(jìn)行了主成分分析。
Phylogenetic relationship of the sinibrama species was reconstructed using the cladistic method and morphological characters . c . monglicus monglicus , a . lini , p . pekinensis and m . terminalis were selected as out - group . and a total of 34 morphological characters were found variable among four valid species 用分支系統(tǒng)學(xué)方法,重建華鳊屬魚類的系統(tǒng)發(fā)育關(guān)系,運(yùn)用外類群比較法,選擇蒙古? 、大眼近紅? 、鳊和三角魴為外類群,對(duì)34個(gè)形態(tài)學(xué)性狀進(jìn)行了簡(jiǎn)約性分析。
All these characters were parsimoniously analyzed using paup4 . 0 . mitochondrial dna cytochrome b gene was adopted to discuss the sequences variations among the populations of sinibrama species and used to reconstruct the phylogenetic relationships between the genus sinibrama and some related cultrinae genera . on the basis of the analytical result , the hypothesized relationship of cultrinae by previous authors were testified 運(yùn)用線粒體dna細(xì)胞色素b基因序列對(duì)華鳊屬及其相關(guān)類群進(jìn)行了系統(tǒng)發(fā)育重建,以探討華鳊屬魚類不同地理居群的cytb序列變異及與其他相關(guān)類群的系統(tǒng)發(fā)育關(guān)系,并驗(yàn)證前人的一些研究結(jié)果。
百科解釋
Sinibrama is a small genus of cyprinid fishes, the five currently recognized species distributed in south China, Taiwan, Laos and Vietnam. These are silvery fishes with deep, laterally compressed bodies, large eyes and terminal mouths.