- 更多网络例句与雁形目相关的网络例句 [注：此内容来源于网络，仅供参考]
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"Species of waterbird that resembles a small Canada goose, with dark back, white face, and black neck and bib ."
雁形目鸭科水禽。学名Branta leucopsis。类似小型黑额黑雁。背色暗，脸白色，颈和喙周围黑色。。
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"Species of waterbird that resemble s a small Canada goose, with dark back, white face, and black neck and bib."
雁形目鸭科水禽。学名Branta leucopsis。类似小型黑额黑雁。背色暗，脸白色，颈和喙周围黑色。。
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Swans are birds of the family Anatidae, which also includes geese and ducks.
天鹅属雁形目中的鸭科中的一个属，鸭科还包括鹅和鸭。
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After two-cluster testing,branch length testing and relative rate testing ,two sequences(Melantitta nigra and Aythya americana) of 15 Cty b sequences were deleted because thek evolutionary rate were heterogeneous. The divergence between Anseriformes and Galliformes was chosen as an anchor point. Nucleotide sequence and amino acid sequence of 13 sequences data set was used to calibrated Anatidae molecular clocks. The results indicated that amino acid sequence is better than nucleotide sequence when divergence time is calculated with two kinds of sequences. The reliable divergence time of Anatidae were estimated with """"1+2TiTv"""" model.
经过二簇检验、分枝长度检验和相对速率检验，删除2条速率不恒定的序列后，用剩余的13条序列，以鸡形目与雁形目的分歧时间(89.8MYA)为锚定点，用顺序标定法标定鸭科鸟类分子钟的分析结果表明，用&1+2TiTv&分析得到的鸭科鸟类的分歧时间比较可靠；氨基酸序列用泊松校正模型和Γ模型估计的分类单元间的分歧时间则比较一致，表明氨基酸序列更适合用于鸭科鸟类分子钟的研究；用同一基因标定分子钟时，较长序列得到的结果标准误比较小；与核苷酸序列相比，氨基酸序列更适于用作分子钟的标定。
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Aves Anseriformes Anatidae Anas River.
鸟纲雁形目鸭科河鸭属。
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Trumpeter Swans belong to the avian order Anseriformes, family Anatida, along with ducks and geese.
号手天鹅属于雁形目鸟类秩序，家庭Anatida ，随着鸭和鹅。
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From May to June 2001~2005 (except 2003), in the Honghuaerji area of Inner Mongolia, sampling method was applied to investigate the Bird Communities Structure of Grassland-Forest Ecosystems, Results indicated that:(1)In the Honghuaerji area, Passeriformes, Charadriiformes and Anseriformes were main birds, in summer reproducing season.
2001～2005年5～6月(除2003年)，在内蒙古红花尔基地区，应用样方调查法研究了草原-森林生态系统鸟类群落结构，结果表明：(1)在红花尔基地区，夏季繁殖季节鸟类组成是以雀形目、鸻形目和雁形目为主。
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Species in Ciconiiformes, 6 species in Gruiformse, 17 species in Anseriformes, 16 species in Charadriiformes, 1 species in Gaviiformes, 1 species in Podicipedifromse, 1 species in Phalacrocoraciformes, 6 species in Lariformes. The largest number of them came from Anseriformes and Lariformes .
本次调查共记录到56种水鸟，分别属于8目13科，其中鹳形目8种鹤形目6种，雁形目17种，形目16种，潜鸟目1种，鸊鷉目1种，鹈形目1种，鸥形目6种，数量最多的是鸥形目和雁形目的水鸟。
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Duck viral enteritis, or duck plague, was caused by duck enteritis virus.DVE was an acute, heat and septicaemic contagious viral disease that naturally affecting birds of the order Anseriformes.
鸭病毒性肠炎(Duck viral enteritis，DVE)，又名鸭瘟(Duck plague，DP)，是由鸭肠炎病毒(Duck enteritis virus，DEV )引起的鸭、鹅及多种雁形目禽类的一种急性、热性、败血性传染病。
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Three major clusters of numt sequences ( cyt b numt、 ATP8+ATP6 numt and ND4+ tRNA-His+ tRNA-Ser numt) were particularity amplified and sequenced from 10 species within Galliformes and A.galericalata. Comparison numts sequences with homologous mitochondrial partial genes get the different evolutionary characteristics and evolutionary speed compared to mtDNA, then examine the age of insertion of numts using the sequence divergence of numt from the mtDNA. Finally, joined Coturnix japonica、 Coturnix chinensis、 Lophura leucomelana、 Lophura swinhoii and A.albifrons mitochondrial sequences in GenBank, we study the importance function to phylogenetic research of mitochondrial genes and homologous numts.The evolutionary rate of Numts is lower than their authentic sequences of mtDNA, cyt b and ND4 gene evolve faster than homologous numts 2.5 times; ATP8+ATP6 gene evolve faster than numts 18.9 times in Galliformes. Numts show less codon position bias and transition bias under not phylogenetic pressure.
根据2004年3月GenBank登录的红原鸡核基因组草图与其线粒体基因组比对发现红原鸡核基因组中存在3段较长的线粒体假基因，利用PCR方法扩增鸡形目10种鸟类和雁形目中鸳鸯核基因组中3段numt序列：cyt b numt、ATP8及下游ATP6 numt和ND4+tRNA-His+tRNA-Ser numt，测序后分别比较线粒体基因与核同源numt序列的进化特点和进化速率，确定numt序列插入核基因组的时间，以及结合GenBank已登录的日本鹌鹑、蓝胸鹑、黑鹇、蓝鹇和1个雁形目物种——白鹅雁(A.albifrons)相应序列探讨两种同源序列对于鸟类系统进化发育重建的重要作用。
- 更多网络解释与雁形目相关的网络解释 [注：此内容来源于网络，仅供参考]
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Anatidae：鸭科
'''鸭科'''(Anatidae)在[[动物分类学]]上是[[鸟纲]],[[雁形目]]中的一个[[科 (生物)|科]]. 鸭科包括雁形目绝大多数的鸟类,是游禽类最大的一科,多达37属148种,除南极之外世界各地都有分布,中国就有19属46种. [[天鹅]],
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鸭科anatidae 小白额雁：anser erythropus
雁形目anseriformes | 鸭科anatidae 小白额雁 anser erythropus | 灰雁 auser anser
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Anser erythropus：鸭科anatidae 小白额雁
雁形目anseriformes | 鸭科anatidae 小白额雁 anser erythropus | 灰雁 auser anser
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ANSERIFORMES：雁形目
雁形目(Anseriformes)是人们最熟悉的游禽,分布广泛,种类繁多,但绝大部分种类都可以归入同一个鸭科,这也是我国仅有的一科. 另外一个科叫鸭科则与鸭科差别甚大.
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ANSERIFORMES：鸟纲 AVES 雁形目
中华秋沙鸭(Mergus squamatus)属于鸟纲(Aves),雁形目(Anseriformes),鸭科(Anatidae),别名鳞胁秋沙鸭、油鸭、唐秋沙;是第三纪孑遗物种,距今已生存了一千多万年,被称为鸟类中的活化石,属国家I级重点保护动物,是雁形目中唯一一种国家I级保护鸟类.
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ANSERIFORMES：六 雁形目
(三)鹮科Threskiornithidae | 六雁形目ANSERIFORMES | (一)鸭科Anatidae
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ANSERIFORMES：四、雁形目
10 栗苇 鸟 Ixobrychus cinnamomens | 四、雁形目 ANSERIFORMES | (四)鸭科 ANATIDAE
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Anseriformes SPP：雁形目所有种
鸬鸶Phalacrocorax carbo | 雁形目所有种Anseriformes SPP | 鸡形目所有种Galliformes SPP
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Anserinae：雁亚科
天鹅 - 物种概述雁形目(Anseriformes)鸭科(Anatidae)雁亚科(Anserinae)最大的水禽. 大多数天鹅归於天鹅 其他水禽无论在水中或空中行动均不如天鹅快速. 天鹅以头钻入(不是全身潜入)浅水中觅食水生植物. 游泳或站
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Galliformes SPP：鸡形目所有种
雁形目所有种Anseriformes SPP | 鸡形目所有种Galliformes SPP | 雀形目伯劳科所有种Lauiidae SPP