scholarly journals In situ glacial survival maintains high genetic diversity of Mussaenda kwangtungensis on continental islands in subtropical China

2020 ◽  
Vol 10 (20) ◽  
pp. 11304-11321
Author(s):  
Miaomiao Shi ◽  
Yuyuan Wang ◽  
Tingting Duan ◽  
Xin Qian ◽  
Tong Zeng ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Subtropical China ◽  
High Genetic Diversity ◽  
Continental Islands

High genetic diversity of in situ and ex situ populations of Madagascan coffee species: further implications for the management of coffee genetic resources

2013 ◽  
Vol 9 (5) ◽  
pp. 1295-1312 ◽  
Author(s):  
Domohina N. Andrianasolo ◽  
Aaron P. Davis ◽  
Norosoa J. Razafinarivo ◽  
Serge Hamon ◽  
Jean-Jacques Rakotomalala ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Genetic Resources ◽  
Ex Situ ◽  
High Genetic Diversity ◽  
Coffee Species

scholarly journals In situ visualization of high genetic diversity in a natural microbial community.

1996 ◽  
Vol 178 (12) ◽  
pp. 3496-3500 ◽  
Author(s):  
R Amann ◽  
J Snaidr ◽  
M Wagner ◽  
W Ludwig ◽  
K H Schleifer
Keyword(s):  
Genetic Diversity ◽  
Microbial Community ◽  
High Genetic Diversity ◽  
In Situ Visualization ◽  
Natural Microbial Community

scholarly journals Inventory and Characterization of Local Taro Genetic Resources in North Toraja

2018 ◽  
Vol 24 (2) ◽  
pp. 115
Author(s):  
Erina Septianti ◽  
Sahardi Sahardi
Keyword(s):  
Genetic Diversity ◽  
Genetic Resources ◽  
Growth Performance ◽  
Sampling Method ◽  
Morphological Characters ◽  
Optimum Growth ◽  
High Genetic Diversity ◽  
Purposive Sampling

<p>Taro (Colocasia esculenta (L.) Schott) has been cultivated and used as an alternative food in Toraja. Local taro of North Toraja has high genetic diversity, nevertheless, they have not been well characterized. The objective of this study was to inventorying and characterizing the morphological characters of local taro from North Toraja, that could be a key component for registered and maintained as a wealth of local genetic resources. The study was conducted in North Toraja District which includes highland areas in Parodo Baruppu Village, Baruppu District and lowland areas in Mantirotiku Village, Rantepao District. Each region was selected based on initial surveys which showed that these areas were taro cultivation areas. The study was conducted from April to June 2016. Samples were selected based on purposive sampling method and were descriptively observed in-situ in the field on their optimum growth performance. Five local taro varieties were successfully inventoried from survey activities, namely Upe Ungu, Upe Kuning, Upe Putih, Monggo, and Bite. Those taros have similar characters on the shape and leave color but varied on the size and flesh fibre color of the corm. Local taro from North Toraja is widely used as snacks or vegetables as rice substitution. The advantage of North Toraja local taro is easy to cultivate and also has a savory taste, soft, good fragrant aroma, the corm skin after being boiled is very easy to peel, and the texture of the corm is smooth. The price of this local taro is quite expensive because of still difficult to find and have not been widely cultivated.</p>

scholarly journals Subtype Characterization and Zoonotic Potential of Cryptosporidium felis in Cats in Guangdong and Shanghai, China

Pathogens ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 89
Author(s):  
Jiayu Li ◽  
Fuxian Yang ◽  
Ruobing Liang ◽  
Sheng Guo ◽  
Yaqiong Guo ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Phylogenetic Analysis ◽  
Genetic Characterization ◽  
Zoonotic Potential ◽  
Common Occurrence ◽  
High Genetic Diversity ◽  
Gp60 Gene ◽  
The Common ◽  
Subtyping Tool

Cryptosporidiumfelis is an important cause of feline and human cryptosporidiosis. However, the transmission of this pathogen between humans and cats remains controversial, partially due to a lack of genetic characterization of isolates from cats. The present study was conducted to examine the genetic diversity of C. felis in cats in China and to assess their potential zoonotic transmission. A newly developed subtyping tool based on a sequence analysis of the 60-kDa glycoprotein (gp60) gene was employed to identify the subtypes of 30 cat-derived C. felis isolates from Guangdong and Shanghai. Altogether, 20 C. felis isolates were successfully subtyped. The results of the sequence alignment showed a high genetic diversity, with 13 novel subtypes and 2 known subtypes of the XIXa subtype family being identified. The known subtypes were previously detected in humans, while some of the subtypes formed well-supported subclusters with human-derived subtypes from other countries in a phylogenetic analysis of the gp60 sequences. The results of this study confirmed the high genetic diversity of the XIXa subtype family of C. felis. The common occurrence of this subtype family in both humans and cats suggests that there could be cross-species transmission of C. felis.

scholarly journals Phylogeography of the Brittle Star Ophiura sarsii Lütken, 1855 (Echinodermata: Ophiuroidea) from the Barents Sea and East Atlantic

Diversity ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 40
Author(s):  
Evgeny Genelt-Yanovskiy ◽  
Yixuan Li ◽  
Ekaterina Stratanenko ◽  
Natalia Zhuravleva ◽  
Natalia Strelkova ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Barents Sea ◽  
Haplotype Diversity ◽  
Brittle Star ◽  
The Arctic ◽  
Coi Gene ◽  
High Genetic Diversity ◽  
Svalbard Archipelago ◽  
Mitochondrial Coi ◽  
The Barents Sea

Ophiura sarsii is a common brittle star species across the Arctic and Sub-Arctic regions of the Atlantic and the Pacific oceans. Ophiurasarsii is among the dominant echinoderms in the Barents Sea. We studied the genetic diversity of O.sarsii by sequencing the 548 bp fragment of the mitochondrial COI gene. Ophiurasarsii demonstrated high genetic diversity in the Barents Sea. Both major Atlantic mtDNA lineages were present in the Barents Sea and were evenly distributed between the northern waters around Svalbard archipelago and the southern part near Murmansk coast of Kola Peninsula. Both regions, and other parts of the O.sarsii range, were characterized by high haplotype diversity with a significant number of private haplotypes being mostly satellites to the two dominant haplotypes, each belonging to a different mtDNA clade. Demographic analyses indicated that the demographic and spatial expansion of O.sarsii in the Barents Sea most plausibly has started in the Bølling–Allerød interstadial during the deglaciation of the western margin of the Barents Sea.

scholarly journals Genetic Diversity of Leuconostoc mesenteroides Isolates from Traditional Montenegrin Brine Cheese

2021 ◽  
Vol 9 (8) ◽  
pp. 1612
Author(s):  
Werner Ruppitsch ◽  
Andjela Nisic ◽  
Patrick Hyden ◽  
Adriana Cabal ◽  
Jasmin Sucher ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Safety Evaluation ◽  
Gene Clusters ◽  
Northern Region ◽  
Genomic Diversity ◽  
High Genetic Diversity ◽  
Pathogenic Factors ◽  
Flavor Development ◽  
Genomic Characterization

In many dairy products, Leuconostoc spp. is a natural part of non-starter lactic acid bacteria (NSLAB) accounting for flavor development. However, data on the genomic diversity of Leuconostoc spp. isolates obtained from cheese are still scarce. The focus of this study was the genomic characterization of Leuconostoc spp. obtained from different traditional Montenegrin brine cheeses with the aim to explore their diversity and provide genetic information as a basis for the selection of strains for future cheese production. In 2019, sixteen Leuconostoc spp. isolates were obtained from white brine cheeses from nine different producers located in three municipalities in the northern region of Montenegro. All isolates were identified as Ln. mesenteroides. Classical multilocus sequence tying (MLST) and core genome (cg) MLST revealed a high diversity of the Montenegrin Ln. mesenteroides cheese isolates. All isolates carried genes of the bacteriocin biosynthetic gene clusters, eight out of 16 strains carried the citCDEFG operon, 14 carried butA, and all 16 isolates carried alsS and ilv, genes involved in forming important aromas and flavor compounds. Safety evaluation indicated that isolates carried no pathogenic factors and no virulence factors. In conclusion, Ln. mesenteroides isolates from Montenegrin traditional cheeses displayed a high genetic diversity and were unrelated to strains deposited in GenBank.

Genetic diversity of the extremely rare Habenaria dentata and the rare Habenaria linearifolia (Orchidaceae) in South Korea: implications for population history and conservation

2018 ◽  
Vol 151 (1) ◽  
pp. 48-60
Author(s):  
Mi Yoon Chung ◽  
Hoa Thi Quynh Le ◽  
Sungwon Son ◽  
Huai Zhen Tian ◽  
Myong Gi Chung
Keyword(s):  
Genetic Diversity ◽  
Southern China ◽  
Geographic Location ◽  
Population History ◽  
Population Variation ◽  
Conservation Strategies ◽  
Ancestral Population ◽  
Allozyme Diversity ◽  
Glacial Origin

Background and aims – Since historical events often leave an indelible mark on levels of genetic diversity of plant populations, one may indirectly infer their evolutionary history with the help of current patterns of genetic diversity. The terrestrial orchid Habenaria dentata, an element of warm-temperate/subtropical vegetation, reaches its northernmost limits in the Korean Peninsula, and thus it is extremely rare there. As H. dentata was absent from the Peninsula during the Last Glacial Maximum (LGM), it is likely to be of post-glacial origin having arrived from either a single refugium or multiple refugia. However, its rare, temperate/boreal congener H. linearifolia might have persisted in situ in either macrorefugia or microrefugia on the Peninsula during the LGM.Methods – To test which hypothesis is most appropriate for each species, we investigated levels of allozyme-based (17 loci) genetic diversity and population genetic structure in the two only known populations of H. dentata and in 12 populations of H. linearifolia.Key results – No allozyme diversity was found in H. dentata (He = 0.000), whereas H. linearifolia exhibited low within-population variation (He = 0.060) and high among-population differentiation (FST = 0.237). We found little association between populations in relation to their geographic location; several populations presented individuals belonging to different clusters.Conclusions – Our results suggest that H. dentata likely originated from a single ancestral population (perhaps from southern Japan or southern China) through post-glacial dispersal, whereas H. linearifolia probably survived the LGM in situ in microrefugia situated at low to mid-elevated regions. We further suggest that separate conservation strategies for each species should be employed, given that the two taxa have different ecological and demographic traits and harbour different levels of genetic diversity.

Sign in / Sign up

Export Citation Format

Share Document