河中麻系 的英文怎麼說

中文拼音 [zhōng]
河中麻系 英文
ai kawanaka
  • : 1 (天然的和人工的大水道) river 2 (指銀河系) the milky way system; the galaxy 3 (特指黃河) t...
  • : 麻構詞成分。
  • : 系動詞(打結; 扣) tie; fasten; do up; button up
  1. Phylogenetic analysis surports that anseranas should be placed in monotypic family anseranatidae, and the whistling ducks and the white - backed duck should be separated from subfamily anserinae and placed them into family dendrocygnidae. the family anatidae could be classified into two subfamilies, anserinae and anatinae. the results approve that the swans should be put into the tribe cygnini of subfamily anserinae as suggested by livezey ( 1996, 1997b ) and the shelducks should be placed in the tribe tadornini of subfamily anatinae, therefore, our results do not support sibley and ahlquist ' s ( 1990 ) establishment of the subfamily cygninae and placing the shelducks in the tribe anserini

    研究結果表明: 1 )雁形目鳥類12srrna基因有較多的堿基插入和缺失,堿基轉換數高於顛換數; 2 )贊同將鵲鵝( anseranas )置於鵲鵝科( anseranatidae ),樹鴨( dendrocygna )應從雁亞科( anserinae )獨立出來設立樹鴨科( dendrocygnidae ) ,白背鴨( thalassornis )隸屬于樹鴨科; 3 )鴨科( anatidae )可分為雁亞科和鴨亞科( anatinae ) 2個亞科,不贊同sibley & ahlquist ( 1990 )設立天鵝亞科( cygninae )及將鴨歸入雁族( anserini )的觀點,支持livezey ( 1996a , 1997b )的觀點建議將天鵝類歸為雁亞科天鵝族( cygnini ) ,鴨置於鴨亞科下鴨族; 4 )在鴨亞科內的統發生上,潛鴨最早分歧出來,鴨、海文摘要鴨及棲鴨彼此iaj的親緣關較近;鴨族為一單發生群,在統演化形成獨立的一支。
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