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Taxonomic notes on the head squamation of the genus Liotyphlops Peters, 1881 (Serpentes, Anomalepididae) 1881年巨蟒属头部鳞片的分类学记录(蛇形目,巨蟒科)
IF 2 2区 生物学 Q2 ZOOLOGY Pub Date : 2023-05-02 DOI: 10.3897/zse.99.102660
Fidélis Júnio Marra Santos
The only head scales which are consistent for Liotyphlops taxonomy are the rostral, prefrontal, and frontal scales. Subdivisions and nomenclature of scales posterior to the prefrontal, frontal, nasal and above supralabials two, three and four should be avoided.
唯一的头部鳞片是一致的,为狮子的分类是吻侧,前额叶和额鳞片。应避免额骨、额骨、鼻骨和额骨上二、三、四后的鳞片的细分和命名。
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引用次数: 0
First record of the false violin spider of the family Drymusidae (Araneae, Synspermiata, Scytodoidea) from Venezuela, with the description of a new species 委内瑞拉琴蛛科假琴蛛(蜘蛛目,合蛛亚目,伞蛛总科)首次记录,并附有一新种描述
IF 2 2区 生物学 Q2 ZOOLOGY Pub Date : 2023-03-29 DOI: 10.3897/zse.99.99227
O. Villarreal, D. Chamé-Vázquez
Drymusa huberisp. nov. is described and illustrated, based on both sexes with specimens collected in a tropical dry forest in Yaracuy State, Venezuela. This new species constitutes the first record of the family Drymusidae for this Neotropical country and fills the distribution gap of the family in the north of South America. Furthermore, we provide the first identification key for all species of Drymusa Simon, 1892.
Drymusa huberisp。11月描述和说明,基于两性标本收集在亚拉库伊州,委内瑞拉的热带干燥森林。这一新物种构成了这个新热带国家木蝇科的第一个记录,填补了该科在南美洲北部的分布空白。此外,我们还提供了第一个所有种类的Drymusa Simon, 1892的鉴定密钥。
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引用次数: 0
A new deep-sea species of Elliptiolucina Cosel & Bouchet, 2008 (Bivalvia, Lucinida, Lucinidae) from cold seep of the South China Sea A深海Elliptiolucina Cosel & Bouchet, 2008(双壳亚目,Lucinida, Lucinidae)来自南海冷泉的新种
IF 2 2区 生物学 Q2 ZOOLOGY Pub Date : 2023-03-27 DOI: 10.3897/zse.99.101795
Yingyi Jiao, Minxiao Wang, Yang Guo, Junlong Zhang
The increasing discoveries of new species of the family Lucinidae in the last two decades indicated a surprising diversity of chemosynthetic lucinids in the deep sea, especially in the Indo-West Pacific. However, only a few records have been reported from the South China Sea. A new lucinid species Elliptiolucina subovalissp. nov. is here reported from a deep-sea cold seep site of the South China Sea. The new species is distinct from its congeners by possessing a strong anterior lateral tooth on the right valve and anterior tapering, subrectangular-oval shells. Sequences of three genes (18S rRNA, 28S rRNA, and CytB) were used to analyze its relationships with other species in the subfamily Myrteinae and confirm its taxonomic placement. The result supports the monophyly of Myrteinae but also demonstrates the polyphyly of Elliptiolucina. The new species has a close relationship with E. williamsae and Rostrilucina garuda, but is not closely related to congener E. ingens. By comparing morphological characters, we suggest that E. ingens should not belong to the genus Elliptiolucina. The basal two of three deep-sea clades recognized in Myrteinae may indicate the deep-sea origin of this subfamily. Our results add to the known diversity of deep-sea lucinids and molecular information for poorly studied Myrteinae and highlight the necessity of further investigation on deep-sea lucinids of the South China Sea.
在过去的二十年里,越来越多的Lucinidae科新种的发现表明,在深海,特别是在印度-西太平洋,化学合成的lucinidids具有惊人的多样性。然而,在南中国海只有少数记录被报道。标题一新种——黄花光属。11月11日的报道来自中国南海的一个深海冷渗点。这个新物种与它的同类不同,它在右瓣上有一个强壮的前侧齿和前渐细的、近矩形椭圆形的壳。利用18S rRNA、28S rRNA和CytB三个基因序列分析其与桃金娘亚科其他种的亲缘关系,确定其分类位置。结果支持桃金娘科的单系性,同时也证实了椭圆桃金娘科的多系性。该新种与黄花蓟马和黄花蓟马亲缘关系较近,但与同系种黄花蓟马亲缘关系不密切。通过形态特征的比较,我们认为银芽草不属于椭圆藻属。在桃金娘亚科中发现的3个深海分支中的2个可能表明该亚科起源于深海。本研究结果增加了深海lucinids的已知多样性和对桃金娘亚科研究不足的分子信息,并强调了进一步研究南海深海lucinids的必要性。
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引用次数: 0
A new short brown unpatterned moray eel (Anguilliformes, Muraenidae) from the southeast coast of India, Bay of Bengal 一种新的短棕色无花纹海鳗(鳗鲡目,海鳗科),产于印度东南海岸的孟加拉湾
IF 2 2区 生物学 Q2 ZOOLOGY Pub Date : 2023-03-23 DOI: 10.3897/zse.99.100461
P. Kodeeswaran, G. Kantharajan, A. Mohapatra, T. T. A. Ajith Kumar, Uttam Kumar Sarkar
Gymnothorax tamilnaduensissp. nov., a new species of short brown unpatterned moray, is described, based on four specimens ranging from 272–487 mm total length collected from the trawl bycatch landings at Mudasalodai fish landing centre, off Cuddalore coast, Tamil Nadu, southeast coast of India. The new species is distinguished by the following combination of characters: origin of dorsal fin at middle of rictus and gill opening, anus just before mid-body, series of lines of small dark spots present on head and a single line of black spot-on mid-line of body, jaw pores with white rim, anal-fin margin whitish, 3 pre-dorsal vertebrae, 56–59 pre-anal vertebrae and 139–150 total vertebrae. The new species differs from its known Indian water congeners by having series of lines of small dark spots present on the head and a single line of black spots on the mid-line of the body (vs. absent in all the three congeners in India), serrated teeth (vs. smooth), jaw pores with white rim (vs. black to brown in others) and higher vertebral count (139–150 vs. 134–138 in others). Our morphological and molecular analyses show that the new species forms a distinct clade from its congeners and these data support the status as a new species.
Gymnothorax tamilnaduensissp。在印度东南海岸泰米尔纳德邦Cuddalore海岸附近的Mudasalodai鱼类登陆中心,从拖网副渔获物登陆处收集了四个标本,总长度从272-487毫米不等,描述了一种新的短棕色无图案海鲷。该新种具有以下特征组合:背鳍起源于喙部和鳃口中间,肛门位于身体中线之前,头部有一系列小黑点和身体中线上的单线黑点,颚孔边缘呈白色,肛门鳍边缘呈白色,3个前背椎骨,56-59个前肛门椎骨和139-150个总椎骨。这个新物种与已知的印度水生同族不同,它的头部有一系列小黑点,身体中线有一条黑点(相比之下,印度所有三个同族都没有),锯齿状牙齿(相比之下,光滑),颚孔边缘为白色(相比之下,其他物种是黑色到棕色),脊椎数量更高(139-150比134-138)。我们的形态学和分子分析表明,新物种形成了一个不同于其同系物的进化枝,这些数据支持新物种的地位。
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引用次数: 0
Phylogenetic revision of Echinolaophonte Nicholls (Copepoda, Harpacticoida, Laophontidae T. Scott) including the establishment of two new genera and two new species 棘球蝽科(桡足目,棘球蝽科,棘球蝽科)的系统发育修正,包括2个新属和2个新种的建立
IF 2 2区 生物学 Q2 ZOOLOGY Pub Date : 2023-03-20 DOI: 10.3897/zse.99.90114
Sung Joon Song, Sang-kyu Lee, Mijin Kim, K. George, J. Khim
The record of a new species of Echinolaophonte Nicholls, 1941 (Copepoda, Harpacticoida, Laophontidae) from Jeju Island (Korea) formed the basis for a detailed and exhaustive phylogenetic revision of the genus. Comparison of all 15 species currently assigned to Echinolaophonte (including the new Korean species) revealed that its current composition cannot be maintained. The phylogenetic relationships within Echinolaophonte were elucidated through the analysis of 135 morphological characters and the inclusion of four outgroups. As a result, four species were removed from Echinolaophonte and placed in two new genera: Parechinolaophontegen. nov. for E. tropica Ummerkutty, 1970 and Pseudechinolaophontegen. nov. for E. minuta Cottarelli & Forniz, 1991, E. mordoganensis Kuru, Sönmez & Karaytug, 2019 and E. veniliae Cottarelli, Forniz & Bascherini, 1992. Echinolaophonte longantennata Apostolov, 1990 had to be excluded from the analysis, due to the fragmentary and imprecise description. Accordingly, the phylogenetic relationships of the ten species remaining in Echinolaophonte are clarified. The new Korean species is described as Echinolaophonte musasp. nov. Furthermore, the subspecies E. armiger f. briani Lang, 1965 is elevated to species rank as E. briani Lang, 1965. A detailed phylogenetic discussion is provided and a key to the species of Echinolaophonte is given.
1941年在韩国济州岛发现的一新种Echinolaophonte Nicholls(桡足目,Harpacticoida, Laophontidae)为该属系统发育的详细修正奠定了基础。对目前属于棘孔虫的15种(包括韩国新种)的比较表明,棘孔虫的现有组成不能维持。通过对棘孔虫的135个形态特征和4个外类群的分析,阐明了棘孔虫的系统发育关系。结果表明,棘轮虫属中有4种被分离,并被归入两个新属:棘轮虫属。11 . E. tropica Ummerkutty, 1970和Pseudechinolaophontegen。11月,E. minuta Cottarelli & Forniz, 1991; E. mordoganensis Kuru, Sönmez & Karaytug, 2019; E. veniliae Cottarelli, Forniz & Bascherini, 1992。Echinolaophonte longantennata Apostolov, 1990由于描述不完整和不精确而被排除在分析之外。在此基础上,澄清了棘孔虫中剩余的10个种的系统发育关系。韩国新种为棘孔虫(Echinolaophonte musasp)。11 .此外,亚种E. armiger f. briani Lang, 1965被提升为E. briani Lang, 1965。对棘孔虫进行了详细的系统发育讨论,并给出了棘孔虫的种键。
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引用次数: 0
A new species of the genus Siler Simon, 1889 (Araneae, Salticidae, Chrysillini) from India 印度银蛛属一新种,1889(蜘蛛目,水蛛科,银蛛科)
IF 2 2区 生物学 Q2 ZOOLOGY Pub Date : 2023-03-09 DOI: 10.3897/zse.99.99285
J. Caleb, Ayush Parag, Aniruddha Datta-Roy
A new chrysilline jumping spider species belonging to the genus Siler Simon, 1889 is described from Odisha, India. Detailed morphological descriptions, illustrations of the male palp and female genitalia and phylogenetic relationships of the new Siler species are presented. Phylogenetic analysis reveals that the new species is sister to a clade of predominantly Southeast Asian Siler species. Furthermore, the results indicate the presence of multiple cryptic species masquerading as S. semiglaucussensu lato. We also briefly discuss some unique behavioural observations on the newly-described species.
描述了印度奥里萨邦的一种新的跳蛛,属于银西蒙属。详细的形态描述,插图的雄性触须和雌性生殖器和系统发育关系的新银种提出。系统发育分析表明,这一新物种是东南亚银种的一个分支的姐妹。此外,研究结果还表明,存在多个伪装成半laiglaucussensu lato的隐种。我们还简要讨论了对新描述的物种的一些独特行为观察。
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引用次数: 0
First record and description of three new species in the land snail genus Diplommatina Benson, 1849 (Caenogastropoda, Diplommatinidae) from Satun Province, Thailand 1849年泰国萨敦省陆地蜗牛属三新种的首次记录和描述(蜗牛足纲,蜗牛科)
IF 2 2区 生物学 Q2 ZOOLOGY Pub Date : 2023-03-07 DOI: 10.3897/zse.99.99030
Tuangthong Boonmachai, E. A. Bergey, N. Nantarat
The micro land snail genus Diplommatina (family Diplommatinidae) is widely distributed in Southeast Asia and includes many endemic species. Three new species of Diplommatina are described from Satun Province in southern Thailand. Diplommatina bulonensissp. nov., D. laemsonensissp. nov. and D. prakaiphetensissp. nov. are distinguished from other species in the genus by their shell size and shape, the number of radial ribs on the penultimate whorl, the number of whorls, and features of the peristome. The agreement between phylogenetic tree based on analyses of COI and 16S sequences and comparative morphology support the delineation of these new species which, when compared to related species, belong to well-differentiated clades. The K2P distance between any of the three new species and other Diplommatina species included in the molecular phylogenetic analysis was at least 5.5% in COI and 3.9% in 16S. Two of the three new species (D. prakaiphetensissp. nov. and D. bulonensissp. nov.) are apparently endemic to Prakaiphet Hill and Bulon Pai Island, respectively. Additionally, we documented a new regional record for D. naiyanetri in Satun Province. These new species and records contribute to the knowledge of Thailand’s land snail biodiversity and highlight the need of conservation protections for regional karst habitats.
微蜗牛属(微蜗牛科)广泛分布于东南亚,有许多特有种。报道了泰国南部沙敦省三新种。Diplommatina bulonensissp。11月,d.l aemsonenissp。D. prakaiphetensisp .;十一月在其壳的大小和形状、倒数第二轮上的放射状棱的数目、轮的数目和花圈的特征上区别于该属的其他种类。基于COI和16S序列分析的系统发育树与比较形态学的一致支持了这些新种的描述,与近缘种相比,这些新种属于分化良好的分支。在分子系统发育分析中,这3个新种与其他外交家种的K2P距离在COI和16S上分别至少为5.5%和3.9%。三个新种中的两个(D. prakaiphetensissp.)。11 .和d.b lonenissp。11月)分别是Prakaiphet Hill和Bulon Pai Island特有的。此外,我们还在沙屯省记录了一种新的奈亚纳特里虫区域记录。这些新物种和记录有助于了解泰国陆地蜗牛的生物多样性,并突出了对区域喀斯特栖息地进行保护的必要性。
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引用次数: 0
DNA barcoding of the genus Alburnoides Jeitteles, 1861 (Actinopterygii, Cyprinidae) from Anatolia, Turkey 土耳其安纳托利亚Alburnoides Jeitteles, 1861(放线鸟科,鲤科)的DNA条形码
IF 2 2区 生物学 Q2 ZOOLOGY Pub Date : 2023-03-06 DOI: 10.3897/zse.99.94333
Halim Canoglu, I. Aksu, D. Turan, Yusuf Bektaş
The present study investigated the ability of DNA barcoding to reliably identify the endemic freshwater species in Turkey, known as biodiversity hotspots. The barcode region (652 bp) of the mitochondrial cytochrome c oxidase subunit I (COI) was used to barcode 153 individuals from 13 morphologically identified species of the genus Alburnoides. Based on the Kimura two-parameter (K2P) evolution model, the average interspecific distance (0.0595) was 31-fold higher than the average intraspecific distance (0.0019). There was a clear-cut barcode gap (0.0158–0.0187) between maximum intraspecific distance (A. tzanevi and A. velioglui) and minimum nearest-neighbour distance (A. freyhofi and A. kurui) for Anatolian Alburnoides species and a common genetic threshold of 0.0158 sequence divergence was defined for species delimitation. The multiple species delimitation methods (ABGD, ASAP, GMYC and bPTP) revealed a total of 11 molecular operational taxonomic units (MOTUs) for 13 morphospecies. Neighbour-joining (NJ), Maximum Likelihood (ML) and Bayesian Inference (BI) tree analysis indicated that all haplotypes were clustered into two major clades, which corresponded to eleven Alburnoides species clusters, with strong bootstrap support. Furthermore, all the specimens clustered in concurrence with the morpho-taxonomic status of the species, except for two species (A. coskuncelebii and A. emineae) that were morphologically differentiated, but showed overlap in variation for COI-based DNA barcode data with other species. Overall, present results identified that COI-based DNA barcoding is effective for species identification and cataloguing of genus Alburnoides in Turkey.
本研究调查了DNA条形码可靠地识别土耳其特有淡水物种的能力,这些物种被称为生物多样性热点。利用线粒体细胞色素c氧化酶亚基I (COI)的条形码区(652 bp)对13个形态鉴定种的153个个体进行了条形码分析。基于Kimura双参数(K2P)进化模型,平均种间距离(0.0595)是种内距离(0.0019)的31倍。Anatolian Alburnoides种间最大种内距离(a . tzanevi和a . velioglui)与最小近邻距离(a . freyhofi和a . kurui)之间存在明显的条形码间隙(0.0158 ~ 0.0187),并以0.0158序列分化为共同遗传阈值进行种界划分。采用ABGD、ASAP、GMYC和bPTP等多种划分方法,共鉴定出13种形态种的11个分子操作分类单元(MOTUs)。邻域连接(NJ)、最大似然(ML)和贝叶斯推断(BI)树分析结果表明,所有单倍型聚为两个主要支系,分别对应11个桤木属物种聚类,具有较强的自举支持。此外,除了A. coskuncelebii和A. emineae两个物种形态分化,但在COI-based DNA条形码数据上与其他物种的变异存在重叠外,所有标本都与物种的形态分类状态一致。综上所述,基于coi的DNA条形码技术在土耳其Alburnoides属的物种鉴定和分类中是有效的。
{"title":"DNA barcoding of the genus Alburnoides Jeitteles, 1861 (Actinopterygii, Cyprinidae) from Anatolia, Turkey","authors":"Halim Canoglu, I. Aksu, D. Turan, Yusuf Bektaş","doi":"10.3897/zse.99.94333","DOIUrl":"https://doi.org/10.3897/zse.99.94333","url":null,"abstract":"The present study investigated the ability of DNA barcoding to reliably identify the endemic freshwater species in Turkey, known as biodiversity hotspots. The barcode region (652 bp) of the mitochondrial cytochrome c oxidase subunit I (COI) was used to barcode 153 individuals from 13 morphologically identified species of the genus Alburnoides. Based on the Kimura two-parameter (K2P) evolution model, the average interspecific distance (0.0595) was 31-fold higher than the average intraspecific distance (0.0019). There was a clear-cut barcode gap (0.0158–0.0187) between maximum intraspecific distance (A. tzanevi and A. velioglui) and minimum nearest-neighbour distance (A. freyhofi and A. kurui) for Anatolian Alburnoides species and a common genetic threshold of 0.0158 sequence divergence was defined for species delimitation. The multiple species delimitation methods (ABGD, ASAP, GMYC and bPTP) revealed a total of 11 molecular operational taxonomic units (MOTUs) for 13 morphospecies. Neighbour-joining (NJ), Maximum Likelihood (ML) and Bayesian Inference (BI) tree analysis indicated that all haplotypes were clustered into two major clades, which corresponded to eleven Alburnoides species clusters, with strong bootstrap support. Furthermore, all the specimens clustered in concurrence with the morpho-taxonomic status of the species, except for two species (A. coskuncelebii and A. emineae) that were morphologically differentiated, but showed overlap in variation for COI-based DNA barcode data with other species. Overall, present results identified that COI-based DNA barcoding is effective for species identification and cataloguing of genus Alburnoides in Turkey.","PeriodicalId":48677,"journal":{"name":"Zoosystematics and Evolution","volume":"32 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2023-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77791267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Another giant species of the microhylid frog genus Cophixalus Boettger, 1892 from the mountains of Papua New Guinea and first records of procoracoids in the genus Another微裂蛙属Cophixalus Boettger的巨型种,1892年产自巴布亚新几内亚山区,该属原冠类的首次记录
IF 2 2区 生物学 Q2 ZOOLOGY Pub Date : 2023-03-01 DOI: 10.3897/zse.99.97006
R. Günther, C. Dahl, S. Richards
A new arboreal species of the microhylid genus Cophixalus Boettger, 1892 is described from montane rainforest on Papua New Guinea’s central cordillera. With a male SUL exceeding 44.0 mm, the new species is among the largest members of the genus; the only other Papuan species known to reach this size is C. riparius Zweifel, 1962. The new species differs from C. riparius in a small number of mensural characters and by its distinct advertisement call, a single explosive ‘bark’ uttered singly or in rapid series. In contrast, calls of C. riparius recorded near the type locality are a series of drawn out, rasping croaks. Calls of the two species are analysed and compared. The two species also appear to have different ecologies, with the new species found only high in trees, while C. riparius is often encountered in vegetation on or near the forest floor. Examination of osteological features revealed the presence of cartilaginous procoracoids in both species, representing the first records of procoracoids in the speciose genus Cophixalus. Lack of procoracoids is traditionally considered an important diagnostic character for defining Cophixalus but both species also lack clavicles, a character considered diagnostic for Cophixalus and a key feature distinguishing the genus from the closely related Oreophryne Boettger, 1895. Because preliminary published genetic data indicate that they are nested within Cophixalus, we retain both species in that genus until a comprehensive molecular phylogeny of Cophixalus and related genera, particularly Oreophryne, is completed.
新几内亚中部科迪勒拉山区热带雨林中描述了一新种。这一新种的雄性腰长超过44.0毫米,是该属中最大的成员之一;已知巴布亚其他唯一能达到这种大小的物种是1962年的C. riparius Zweifel。这个新物种与河滨瓢虫的不同之处在于其少量的测量特征,以及它独特的广告叫声,一种单一或快速连续发出的爆炸性“吠叫”。相比之下,在类型位置附近记录的河滨蝉的叫声是一系列拉长的,刺耳的呱呱声。对这两种鸟的叫声进行了分析和比较。这两个物种似乎也有不同的生态,新物种只在树上高处发现,而河滨瓢虫经常在森林地面或附近的植被中遇到。骨学特征的检查显示,在这两个物种中都存在软骨的前冠状体,代表了Cophixalus种属中前冠状体的第一次记录。传统上认为缺少前冠状体是定义Cophixalus的重要诊断特征,但这两个物种也缺少锁骨,锁骨被认为是Cophixalus的诊断特征,也是区分该属与近亲Oreophryne Boettger(1895)的关键特征。由于初步公布的遗传数据表明它们嵌套在Cophixalus中,我们将这两个物种保留在该属中,直到Cophixalus及其相关属,特别是Oreophryne的全面分子系统发育完成。
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引用次数: 0
Species delimitation, molecular phylogeny and historical biogeography of the sweetlips fish (Perciformes, Haemulidae) 唇唇鱼的种界、分子系统发育及历史生物地理学(鲈形目,唇唇鱼科)
IF 2 2区 生物学 Q2 ZOOLOGY Pub Date : 2023-02-23 DOI: 10.3897/zse.99.96386
E. Damadi, Faezeh Yazdani Moghaddam, M. Ghanbarifardi
The subfamily Plectorhinchinae (sweetlips) is composed of poorly-known species with high commercially and ecologically values that exhibit phenotypic plasticity and various morphologies. Few studies have assessed the validity of sweetlips, intergeneric relationships and evolutionary survey in this subfamily, which have not yet been resolved. This study investigated the DNA sequences of (1) the mitochondrial COI gene to delimit species, and (2) two mitochondrial (COI and Cyt b), and one nuclear (RAG1) markers to infer phylogenetic relationships and evolutionary and biogeographic history. The molecular results could differentiate Diagramma punctatum from the other species, but failed to distinguish D. labiosum as a distinct species with considerably lower genetic distances for the COI (0.53%) and Cyt b (0.51%) markers. However, additional taxonomic investigations are required to shed light on this issue. All previously described nominal species of sweetlips in the northwest Indian Ocean were found to be well supported. The monophyly of Plectorhinchus is not supported and Diagramma pictum and D. punctatum should be assigned to the genus Plectorhinchus. The biogeographic history of Plectorhinchinae likely originated in the Indo-Pacific ca. 34 Ma (30–39 Ma; late Eocene/ middle Oligocene) and subsequently colonised the Western Indian Ocean and the Central Indo-Pacific. Maximum diversification within the subfamily occurred from the middle Miocene to Pliocene, coinciding with dispersal and vicariance events. Diversification was probably driven by both biological and geographical factors.
Plectorhinchinae (sweetlips)亚科是一个鲜为人知的物种,具有很高的商业和生态价值,表现出表型可塑性和多种形态。很少有研究评估了甜草属的有效性、属间关系和该亚科的进化调查,这些问题尚未得到解决。本研究研究了(1)线粒体COI基因的DNA序列来划分物种,(2)两个线粒体(COI和Cyt b)和一个核(RAG1)标记来推断系统发育关系以及进化和生物地理历史。分子分析结果表明,在COI(0.53%)和Cyt b(0.51%)遗传距离较低的情况下,不能将斑点图(Diagramma punctatum)与其他种区分开来,但不能将唇形草(D. labiosum)区分为不同的种。然而,需要更多的分类学研究来阐明这一问题。在西北印度洋发现的所有先前描述的名义种的甜腹菜都得到了很好的支持。直立猿猴属的单系性不成立,应将直立猿猴属(Diagramma pictum)和斑点猿猴属(D. punctatum)归为直立猿猴属。Plectorhinchinae的生物地理历史可能起源于大约34 Ma (30-39 Ma;晚始新世/中渐新世),并随后殖民于西印度洋和中印度太平洋。亚科内最大的多样化发生在中新世中期至上新世,与分散和变异事件一致。多样化可能是由生物和地理因素共同推动的。
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引用次数: 0
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Zoosystematics and Evolution
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