Two New Species of Ischnocnema (Anura: Brachycephalidae) from Southeastern Brazil and their Phylogenetic Position within the I. guentheri Series

IF 1.1 2区 生物学 Q3 ZOOLOGY
P. P. Taucce, Clarissa Canedo, C. Haddad
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引用次数: 8

Abstract

Abstract:  We describe two new species of Ischnocnema from the states of Minas Gerais and Espírito Santo, southeastern Brazil, based on morphological, bioacoustical, and molecular data. We use three mitochondrial and two nuclear genes in Bayesian inference and maximum likelihood analyses to assess their phylogenetic placement within the I. guentheri series. The two new species group with I. oea in a well-supported clade in both analyses and have a calcar tubercle that is at least as long as wide. This type of tubercle seems to be a putative synapomorphy for the clade. We provide a revised diagnosis for the I. guentheri series, with characters shared by all its members, and discuss the close relationship between the I. parva and the I. guentheri series.
巴西东南部两新种(无尾目:短头目)及其在I. guentheri系列中的系统发育地位
摘要:  根据形态学、生物声学和分子数据,我们描述了来自巴西东南部米纳斯吉拉斯州和圣埃斯皮里托州的两个Ischnocnema新种。我们在贝叶斯推断和最大似然分析中使用了三个线粒体基因和两个核基因来评估它们在I.guentheri序列中的系统发育位置。在两次分析中,这两个新物种与I.oea在一个得到充分支持的分支中,并且有一个至少和宽一样长的钙质结节。这种类型的结节似乎是该分支的一种假定的突触形态。我们对I.guentheri系列进行了修订诊断,其所有成员都有共同的特征,并讨论了I.parva和I.guentherri系列之间的密切关系。
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来源期刊
Herpetological Monographs
Herpetological Monographs 生物-动物学
CiteScore
5.40
自引率
0.00%
发文量
2
审稿时长
>12 weeks
期刊介绍: Since 1982, Herpetological Monographs has been dedicated to original research about the biology, diversity, systematics and evolution of amphibians and reptiles. Herpetological Monographs is published annually as a supplement to Herpetologica and contains long research papers, manuscripts and special symposia that synthesize the latest scientific discoveries.
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