http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
A mitochondrial genome phylogeny of Mytilidae (Bivalvia: Mytilida)
Lee, Yucheol,Kwak, Haena,Shin, Jinkyung,Kim, Seung-Chul,Kim, Taeho,Park, Joong-Ki Academic Press 2019 Molecular phylogenetics and evolution Vol.139 No.-
<P><B>Abstract</B></P> <P>The family Mytilidae is a family of bivalve mussels that are distributed worldwide in diverse marine habitats. Within the family, classification systems and phylogenetic relationships among subfamilies remain not yet fully resolved. In this study, we newly determined 9 mitochondrial genome sequences from 7 subfamilies: <I>Bathymodiolus thermophilus</I> (Bathymodiolinae), <I>Modiolus nipponicus</I> (Modiolinae), <I>Lithophaga curta</I> (the first representative of Lithophaginae), <I>Brachidontes mutabilis</I> (Brachidontinae), <I>Mytilisepta virgata</I> (Brachidontinae), <I>Mytilisepta keenae</I> (Brachidontinae), <I>Crenomytilus grayanus</I> (Mytilinae), <I>Gregariella coralliophaga</I> (Crenellinae), and <I>Septifer bilocularis</I> (the first representative of Septiferinae). Phylogenetic trees using maximum likelihood and Bayesian inference methods for 28 mitochondrial genomes (including 19 previously published sequences) showed two major clades with high support values: Clade 1 ((Bathymodiolinae + Modiolinae) + (Lithophaginae + Limnoperninae)) and Clade 2 (((Mytilinae + Crenellinae) + Septiferinae) + Brachidontinae). The position of the genus <I>Lithophaga</I> (representing Lithophaginae) differed from a previously published molecular phylogeny. Divergence time analysis with a molecular clock indicated that lineage splitting among the major subfamilies of Mytilidae (including the habitat transition from marine to freshwater environments by ancestral Limnoperninae) occurred in the Mesozoic period, coinciding with high diversification rates of marine fauna during that time. This is the first mitochondrial genome-based phylogenetic study of the Mytilidae that covers nearly all subfamily members, excluding the subfamily Dacrydiinae.</P> <P><B>Highlights</B></P> <P> <UL> <LI> The phylogenetic relationships among subfamilies of the Mytilidae are uncertain. </LI> <LI> A mitochondrial genome phylogeny was reconstructed for 27 mytilid species. </LI> <LI> The phylogeny shows two major clades that have diverged in the Devonian. </LI> <LI> The splitting time among the major subfamilies occurred in the Mesozoic period. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
Cho, Hong-Yeon,Kim, Sung,Lee, Youn-Ho,Jung, Gila,Kim, Choong-Gon,Jeong, Dageum,Lee, Yucheol,Kang, Mee-Hye,Kim, Hana,Choi, Hae-Young,Oh, Jina,Myong, Jung-Goo,Choi, Hee-Jung Korea Institute of Ocean ScienceTechnology 2017 Ocean and Polar Research Vol.39 No.1
Temporal changes in the number of zooplankton species are important information for understanding basic characteristics and species diversity in marine ecosystems. The aim of the present study was to estimate the optimal monitoring frequency (OMF) to guarantee and predict the minimum number of species occurrences for studies concerning marine ecosystems. The OMF is estimated using the temporal number of zooplankton species through bi-weekly monitoring of zooplankton species data according to operational taxonomic units in the Tongyoung coastal sea. The optimal model comprises two terms, a constant (optimal mean) and a cosine function with a one-year period. The confidence interval (CI) range of the model with monitoring frequency was estimated using a bootstrap method. The CI range was used as a reference to estimate the optimal monitoring frequency. In general, the minimum monitoring frequency (numbers per year) directly depends on the target (acceptable) estimation error. When the acceptable error (range of the CI) increases, the monitoring frequency decreases because the large acceptable error signals a rough estimation. If the acceptable error (unit: number value) of the number of the zooplankton species is set to 3, the minimum monitoring frequency (times per year) is 24. The residual distribution of the model followed a normal distribution. This model can be applied for the estimation of the minimal monitoring frequency that satisfies the target error bounds, as this model provides an estimation of the error of the zooplankton species numbers with monitoring frequencies.
Marine Molluscan Fauna of Jindo Island
Yucheol Lee,Yeongjae Choe,Youngheon Shin,Taeho Kim,Jina Park,Joong-Ki Park 한국동물분류학회 2016 Animal Systematics, Evolution and Diversity Vol.- No.s9
As a part of the commemorative joint faunal survey for the 30th anniversary of the Korean Society of Systematic Zoology, the molluscan fauna of Jindo Island was investigated based on sample collection from 6 localities from the 6 to the 8 of Jul 2016. A total of 114 molluscan species from 47 families were collected and identified. Among these, 42 species from 11 families are newly reported from Jindo Island and combining the previous records with the present study totals 157 species from 57 families. Distribution of species records indicates that marine biogeography of Jindo Island represent an overlapping zone for marine organisms which dwell in the Yellow sea and the southern sea areas of Korean waters.
Marine Molluscan Fauna of Jindo Island
Yucheol Lee,Yeongjae Choe,Youngheon Shin,Taeho Kim,Jina Park,Joong-Ki Park 한국동물분류학회 2016 Korean Journal of Systematic Zoology Special Issue Vol.- No.9
As a part of the commemorative joint faunal survey for the 30th anniversary of the Korean Society of Systematic Zoology, the molluscan fauna of Jindo Island was investigated based on sample collection from 6 localities from the 6 to the 8 of Jul 2016. A total of 114 molluscan species from 47 families were collected and identified. Among these, 42 species from 11 families are newly reported from Jindo Island and combining the previous records with the present study totals 157 species from 57 families. Distribution of species records indicates that marine biogeography of Jindo Island represent an overlapping zone for marine organisms which dwell in the Yellow sea and the southern sea areas of Korean waters.
Kim, Taeho,Lee, Yucheol,Park, Joong-Ki The National Institute of Biological Resources 2021 Journal of species research Vol.10 No.4
The genus Acrobeloides(Cobb, 1924) Thorne, 1937 are bacterial feeders and are one of the most abundant and widely distributed nematode groups in various terrestrial environments. Based on morphological and morphometric analyses, we found two Acrobeloides species reported in Korea for the first time: A. bodenheimeri (Steiner, 1936) Thorne, 1937 and A. tricornis (Throne, 1925) Thorne, 1937. These species exhibit morphological characters concordant with typical features of the genus Acrobeloides, such as a fusiform pharyngeal corpus with swollen metacorpus and lateral incisures extending to the tail terminus. However, A. bodenheimeri is distinguished from other acrobeloids by having its low and rounded labial probolae, distinct post-uterine sac and five lateral incisures. Acrobeloides tricornis is distinguished from its congeners by the following characteristics: its high labial probolae with acuate termini, inconspicuous post-uterine sac and five lateral incisures. Morphological characters and their measurements, and illustrations of A. bodenheimeri and A. tricornis are described in this study.