Diversity and phylogeny of insect trypanosomatids based on small subunit rRNA genes: polyphyly of Leptomonas and Blastocrithidia.
Diversity and phylogeny of insect trypanosomatids based on small subunit rRNA genes: polyphyly of Leptomonas and Blastocrithidia.
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基于小亚基 rRNA 基因的昆虫锥虫的多样性和系统发育：细单胞菌和芽胞丝虫的多系。
DOI：
10.1111/j.1550-7408.2001.tb00298.x
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发表时间：
2001
期刊：
影响因子：
--
通讯作者：
Maslov,DA
中科院分区：
文献类型：
--
作者：
Merzlyak,E;Yurchenko,V;Kolesnikov,AA;Alexandrov,K;Podlipaev,SA;Maslov,DA
With the aim of further investigating phylogenetic relationships in insect trypanosomatids, we have determined the sequences of small subunit rRNA genes from ten isolates, which were originally classified asLeptomonas, Blaslocrithidia, andWallaceinabased on their morphology in the hosts. The inferred maximum likelihood, parsimony, and distance trees indicate that theLeptomonasandBlastocrithidiaare polyphyletic, and confirm the polyphyly ofHerpetomonasandCrithidia. Blaslocrithidia triatomaandLeptomonas collosomawere among the earliest branching lineages among the insect trypanosomatids, while most other isolates were found within a closely related terminal clade, which also includedCrithidia fasciculata.This analysis has clearly demonstrated that the morphological classification system of insect trypanosomatids does not always reflect their genetic affinities warranting its revision in the future.
