Article
Plant Sciences
Phuong T. N. Hoang, Joerg Fuchs, Veit Schubert, Tram B. N. Tran, Ingo Schubert
Summary: Chromosome sets and genome sizes are stable for distinct species and provide essential cues for taxonomy and phylogenetic relationship studies. This study presents a survey on chromosome counts and genome size measurement for all 36 duckweed species, discussing their evolutionary impact and peculiarities in duckweeds.
Article
Environmental Sciences
Ju-Hee Kim, Chang-Min Kim, Seung-Hoon Yoo
Summary: The South Korean government is interested in the environmental conservation value of Cypripedium japonicum and conducted a study using contingent valuation to assess people's willingness to pay for its conservation. The average household willingness to pay is estimated to be KRW 3,770 (USD 3.07) per annum, totaling KRW 76.72 billion (USD 62.42 million) per year. The estimated value of conserving the species seems to outweigh the cost of conservation, making it socially desirable to continue conservation efforts in a stable manner.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Plant Sciences
Jun-Yi Zhang, Min Liao, Yue-Hong Cheng, Yu Feng, Wen-Bing Ju, Heng-Ning Deng, Xiong Li, Andelka Plenkovic-Moraj, Bo Xu
Summary: In this study, we investigated the genomic characteristics and species classification relationships of Cypripedium genus using newly generated chloroplast genomes and previously published genomes. By analyzing genome size, repeat sequences, and highly polymorphic loci, we uncovered the genomic features of Cypripedium and reconstructed a well-supported phylogenetic tree of the species.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Agronomy
Gyeongjun Cho, Geun-Hye Gang, Hee-Young Jung, Youn-Sig Kwak
Summary: This study reveals the interaction of rhizosphere fungal community in Korean lady's slipper and identifies crucial mycorrhizal fungi that contribute to habitat expansion and cultivation of the endangered orchid species.
Article
Plant Sciences
Amalia Ibiapino, Miguel A. Garcia, Bruno Amorim, Mariana Baez, Mihai Costea, Sasa Stefanovic, Andrea Pedrosa-Harand
Summary: Karyotypes of Cuscuta plants exhibit high diversity in terms of chromosome number and genome size. The prevalent evolutionary processes in this genus include genome duplications and dysploidy. The expansion of genome size in Cuscuta may be associated with its parasitic lifestyle. The position of rDNA sites varies, especially in species with multiple sites in the same karyotype.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Natalia Borowska-Zuchowska, Magdalena Senderowicz, Dana Trunova, Bozena Kolano
Summary: Cytogenetics is a branch of genetics focused on cellular components, especially chromosomes, and their relationship to heredity, genome structure, function, and evolution. Modern cytogenetic approaches allow for the visualization of different sequences in the plant genome and contribute to understanding its evolutionary history.
Article
Genetics & Heredity
Magdalena Senderowicz, Teresa Nowak, Magdalena Rojek-Jelonek, Maciej Bisaga, Laszlo Papp, Hanna Weiss-Schneeweiss, Bozena Kolano
Summary: The study on the evolution of karyotype and genome size in Crepis species revealed the presence of different base chromosome numbers and recurrent origins in different lineages. The increase in karyotype asymmetry accompanied karyotype evolution. The significant variation in genome sizes suggests that, besides changes in chromosome numbers, the amplification/elimination of repetitive DNAs may have played a role in genome and taxa differentiation within the genus.
Article
Plant Sciences
Spela Pungarsek, Jasna Dolenc Koce, Martina Bacic, Michael H. J. Barfuss, Peter Schoenswetter, Bozo Frajman
Summary: This study examined the relationships among different species of Luzula sect. Luzula in the Eastern Alps using relative genome size and karyotype estimations, as well as AFLP fingerprinting. The study found the co-occurrence of multiple ploidies and species at the same localities, with partial fragmentation of chromosomes leading to the recurrent formation of agmatoploid individuals. Further research is needed to determine if this pattern is common in Luzula sect. Luzula and if ecological niche segregation supports the frequent co-occurrence of closely related cytotypes in mixed populations.
Article
Forestry
Yadong Xu, Yi Huang, Huiru Zhao, Meiling Yang, Yuqi Zhuang, Xinping Ye
Summary: The study found that with climate change, the suitable habitat of C. japonicum will slightly increase and shift northwestward, but highly suitable areas will be severely lost. Under future climatic conditions, the highly suitable habitats in Zhejiang and Anhui will almost disappear. The problem of climate change may be more urgent than it is believed.
Article
Agronomy
Karla Fabiola Yescas-Romo, Francisco Elizandro Molina-Freaner, Francisca Ramirez-Godina, M. Humberto Reyes-Valdes, Octavio Martinez, Corina Hayano-Kanashiro
Summary: This study analyzed the seed morphology and karyotype of the endangered wild cotton species Gossypium turneri Fryxell from Sonora, Mexico, revealing its nonuniform oval-shaped seeds and 26 chromosomes. These important biological traits could be considered in future studies to improve the cultivated cotton.
GENETIC RESOURCES AND CROP EVOLUTION
(2021)
Article
Entomology
Danon Clemes Cardoso, Maykon Passos Cristiano
Summary: Ants are an important insect group with a wide range of chromosome numbers, from 1 to 60. DNA molecules can be quantified to study evolution at the species level. Fungus-farming ants exhibit significant variation in chromosome number across species, requiring further research.
Review
Plant Sciences
Mauricio Moreno-Camarena, Maria Pilar Ortega-Larrocea
Summary: The Irapeana section of the valuable orchid genus Cypripedium, consisting of three distinct Mesoamerican species, has experienced a significant reduction in habitat. Predicting potential distributions based on environmental parameters allows for the identification of suitable habitats. Ex situ conservation strategies, such as asymbiotic and symbiotic propagation, depend on the culture media used for seedling development. Mycorrhizal isolates play a crucial role in the compatibility and further development of germinated seeds. The genus Cypripedium poses challenges for ex situ conservation, highlighting the need for in situ conservation to preserve and protect this species to avoid extinction.
Article
Biochemistry & Molecular Biology
Thomas D. Brekke, Alexander S. T. Papadopulos, Eva Julia, Oscar Fornas, Beiyuan Fu, Fengtang Yang, Roberto de la Fuente, Jesus Page, Tobias Baril, Alexander Hayward, John F. Mulley
Summary: Chromosome-scale genome assemblies using ultralong-read sequencing technologies reveal fine-scale centromere structure and large-scale variation in genome features. A new chromosome-scale genome of the Mongolian gerbil with complete centromere sequence is presented. Gerbil centromeres consist of four different repeats of various lengths in alternating arrays, spanning 1-6 Mb. The study highlights the importance of karyotypic features in genome interpretation and uncovers novel patterns in chromosome evolution.
MOLECULAR BIOLOGY AND EVOLUTION
(2023)
Article
Plant Sciences
Shaghayegh Mehravi, Gholam Ali Ranjbar, Hamid Najafi-Zarrini, Ghader Mirzaghaderi, Mehrdad Hanifei, Anita Alice Severn-Ellis, David Edwards, Jacqueline Batley
Summary: In this study, karyology and genome size of Pimpinella species in Iran were analyzed, revealing inter-specific variations. The findings provide insights for classification of the genus Pimpinella and suggest the potential existence of a new genus - Pseudopimpinella.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Ana Paula Moraes, Thaissa Brogliato Junqueira Engel, Eliana R. Forni-Martins, Fabio de Barros, Leonardo P. Felix, Juliano Sarmento Cabral
Summary: The study on Maxillariinae reveals that genome size and chromosome number are partially correlated with ecological data in the evolutionary process, suggesting the significance of these genomic traits in the ecological niche.
Article
Plant Sciences
Pavel Neumann, Ludmila Oliveira, Jana Cizkova, Tae-Soo Jang, Sonja Klemme, Petr Novak, Katarzyna Stelmach, Andrea Koblizkova, Jaroslav Dolezel, Jiri Macas
Summary: The parasitic genus Cuscuta stands out for its unique centromere organization and genome size variations among plants. Monocentric Cuscuta species show a remarkable 102-fold variation in genome sizes, while holocentric species have more moderate sizes. The transition to holocentric chromosomes in Cuscuta is associated with changes in epigenetic marks, chromosome number, and repetitive DNA sequence composition.
Article
Anatomy & Morphology
Hyeonjin Kim, Bokyung Choi, Changyoung Lee, Scott A. M. McAdam, Jin-Hyub Paik, Tae-Soo Jang
Summary: This study provides a detailed description of leaf, floral, pollen, and orbicule micromorphology of four Korean Disporum species using light and scanning electron microscopy. The presence of orbicules and their taxonomic implications in Korean Disporum species are described for the first time, and phylogenetically informative characters are identified to improve understanding of the systematic relationships of Korean species in the genus Disporum.
MICROSCOPY RESEARCH AND TECHNIQUE
(2021)
Article
Anatomy & Morphology
Bokyung Choi, Yu-Eun Ahn, Tae-Soo Jang
Summary: In this study, the leaf micromorphological characteristics of Korean irises were examined, providing valuable information for species identification. The presence of polymorphic stomatal types was reported for the first time, and the potential correlation between genome size and epidermal guard cell length was discussed.
MICROSCOPY RESEARCH AND TECHNIQUE
(2022)
Article
Plant Sciences
Bokyung Choi, Jangseung Ryu, Tae-Soo Jang
Summary: This study used scanning electron microscopy to describe the pollen morphology of Korean Iris. The observed pollen micromorphological characters, including size, shape, and exine ornamentation, enabled species distinction and taxonomic delimitation. The pollen morphological data presented in this study are of systematic significance to Korean Iris species.
Article
Multidisciplinary Sciences
Bokyung Choi, Inkyu Park, Soonku So, Hyeon-Ho Myeong, Jangseung Ryu, Yu-Eun Ahn, Kyu-Chan Shim, Jun-Ho Song, Tae-Soo Jang
Summary: This study compared the complete plastid genome sequences and micromorphological features of Iris ruthenica Ker Gawl. and I. uniflora Pall. ex Link, and identified molecular markers for their discrimination. The phylogenetic analysis showed their close relationship, and the comparison of plastomes and micromorphological features provided valuable information for understanding their taxonomic and evolutionary relationships.
SCIENTIFIC REPORTS
(2022)
Article
Plant Sciences
Bokyung CHOI, Hyeonjin KIM, Hye-Joo BYUN, Geun-Hye GANG, Yongsoon LEE, Hyeon-Ho MYEONG, Soonku SO, Tae-Soo JANG
Summary: This study reports the chromosome number, karyotype structure, and genome size of Rhododendron keiskei var. hypoglaucum for the first time. The chromosome number of this plant was found to be 2n = 26 with x = 13 as the base chromosome number. The karyotype consisted of metacentric and sub-metacentric chromosomes of similar length. These findings provide important insights for further molecular, cytogenetic, and phylogenomic analyses of Rhododendron.
KOREAN JOURNAL OF PLANT TAXONOMY
(2022)
Article
Cell Biology
Young -Min Choi, Bokyung Choi, Tae -Soo Jang
Summary: Juncus L. is a genus of herbs with approximately 310 species globally, but less commonly found in the tropics. This study presents detailed information on chromosome numbers from 36 individuals of 10 Korean Juncus taxa, revealing variations in chromosome numbers with no systematic relevance. The study suggests that this chromosome number variation could provide additional evidence for morphological diversification.
Article
Biochemistry & Molecular Biology
Inkyu Park, Bokyung Choi, Hanna Weiss-Schneeweiss, Soonku So, Hyeon-Ho Myeong, Tae-Soo Jang
Summary: This study conducted comparative analyses on the karyotypes of three Iris species in Korea, with an emphasis on the number and localization of 5S and 35S rDNA loci using FISH. The chloroplast genomes of the same individuals were also sequenced and compared. The results provide important insights into the origin of the progenitor species and the genomes of Iris series Chinenses.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Multidisciplinary Sciences
Pavel Neumann, Ludmila Oliveira, Tae-Soo Jang, Petr Novak, Andrea Koblizkova, Veit Schubert, Andreas Houben, Jiri Macas
Summary: The transition from monocentric to holocentric organization in Cuscuta was associated with loss or truncation of kinetochore-related genes, disruption of centromeric localization of kinetochore proteins, and degeneration of the spindle assembly checkpoint. This indicates that holocentric Cuscuta species lack a standard kinetochore and do not employ the SAC to control microtubule attachment to chromosomes.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Plant Sciences
Hyeonjin Kim, Bokyung Choi, Changyoung Lee, Jin-Hyub Paik, Chang-Gee Jang, Hanna Weiss-Schneeweiss, Tae-Soo Jang
Summary: The study found that differentiation in genome size and chromosome number is not necessarily correlated with morphological differentiation of cytotypes.
Article
Plant Sciences
Hye-Joo Byun, Tae -Soo Jang
Summary: A comprehensive micromorphological study of the Korean woodrush was conducted, analyzing leaf and pistil characteristics. The study revealed important diagnostic criteria for distinguishing between different species within the Korean Luzula genus, providing valuable information for taxonomic classification.
Article
Anatomy & Morphology
Bokyung Choi, Yeojin Hwang, Scott A. M. Mcadam, Tae-Soo Jang
Summary: A comparative study of leaf micromorphological characteristics in Korean Ajuga species was conducted using light microscopy and scanning electron microscopy. The research found considerable diversity in epidermal and stomatal anatomy across the species, with different types of stomatal complexes and various glandular trichomes. The study highlights the taxonomic usefulness of trichome type, epidermal cell shape, and stomatal morphology for species identification.
MICROSCOPY RESEARCH AND TECHNIQUE
(2023)