Bdelloid Rotifer


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Bdelloid rotifers: Microscopic animals survived 24,000 years frozen ...

Bdelloid Rotifers: Microscopic Animals Survived 24,000 Years Frozen ...

A microscopic animal has been revived after slumbering in the Arctic permafrost for 24,000 years. Jun 8, 2021 ... Bdelloid rotifers typically live in watery environments and have an incredible ability to survive. Russian scientists found the creatures in ... [ReadMore..]

Like little escape artists, rotifers elude their enemies by drying up ...

Like Little Escape Artists, Rotifers Elude Their Enemies By Drying Up ...

Bdelloid rotifers haven't had sex in 30 million years, but scientists have discovered the secret to their evolutionary longevity. Jan 28, 2010 ... Bdelloid rotifers haven't had sex in 30 million years, but scientists have discovered the secret to their evolutionary longevity. [ReadMore..]

Comparative genomics of bdelloid rotifers: Insights from desiccating ...

Comparative Genomics Of Bdelloid Rotifers: Insights From Desiccating ...

Author summary Bdelloid rotifers are microscopic animals that live in freshwater habitats throughout the world. Two life history characteristics distinguish these common invertebrates as extraordinary. First, they have existed for millions of years apparently without sex: males have not been reported, and females produce genetically identical daughters via parthenogenesis. Second, most bdelloid species are highly resilient to desiccation and can survive without water for extended periods of time (a process known as anhydrobiosis). These 2 attributes have been predicted to leave signatures in bdelloid genomes. Here, we present new draft genomes for 3 bdelloid species and employ comparative genomics to explore the potential impacts of bdelloids’ unusual lifestyle on genome structure and content. We find that many proposed genomic consequences of asexuality and desiccation tolerance do not hold true for all species. The genomes of bdelloids may be more similar to those of other animals than previously thought, Apr 24, 2018 ... Bdelloid rotifers are a class of microscopic invertebrates that have existed for millions of years apparently without sex or meiosis. [ReadMore..]

Extreme resistance of bdelloid rotifers to ionizing radiation | PNAS

Extreme Resistance Of Bdelloid Rotifers To Ionizing Radiation | PNAS

Rotifers of class Bdelloidea are common invertebrate animals with highly unusual characteristics, including apparently obligate asexuality, the abilit... Rotifers of class Bdelloidea are common invertebrate animals inhabiting temporary freshwater pools, the surfaces of mosses and lichens, and other ephemerally ... [ReadMore..]

Bdelloid rotifer survives 24,000 years frozen in Siberia - BBC News

Bdelloid Rotifer Survives 24,000 Years Frozen In Siberia - BBC News

The bdelloid rotifer, frozen under permafrost, may be able survive indefinitely, research suggests. Jun 7, 2021 ... Bdelloid rotifers are a class of rotifer found in freshwater environments around the world. The name rotifer comes from the Latin meaning "wheel ... [ReadMore..]

Genomic Signature of Sexual Reproduction in the Bdelloid Rotifer ...

Genomic Signature Of Sexual Reproduction In The Bdelloid Rotifer ...

Nov 8, 2021 ... Bdelloid rotifers, common freshwater invertebrates of ancient origin and worldwide distribution have long been thought to be entirely ... [ReadMore..]

Bdelloid rotifer - microbewiki

Bdelloid Rotifer - Microbewiki

Apr 30, 2020 ... Appearance: Bdelloid rotifers are microscopic worm-like organisms that are usually between 150 to 750 µm long (Palka 2010). Their bodies are ... [ReadMore..]

A living bdelloid rotifer from 24,000-year-old Arctic permafrost

A Living Bdelloid Rotifer From 24,000-year-old Arctic Permafrost

In natural, permanently frozen habitats, some organisms may be preserved for hundreds to tens of thousands of years. For example, stems of Antarctic moss were successfully regrown from an over millennium-old sample covered by ice for about 400 years1. Likewise, whole campion plants were r … Jun 7, 2021 ... Affiliations. 1 Soil Cryology Laboratory, Institute of Physicochemical and Biological Problems in Soil Science, Institutskaya 2, 142290, ... [ReadMore..]

Genomic evidence for ameiotic evolution in the bdelloid rotifer ...

Genomic Evidence For Ameiotic Evolution In The Bdelloid Rotifer ...

Loss of sexual reproduction is considered an evolutionary dead end for metazoans, but bdelloid rotifers challenge this view as they appear to have persisted asexually for millions of years. Neither male sex organs nor meiosis have ever been observed in these microscopic animals: oocytes are formed t … Aug 22, 2013 ... Loss of sexual reproduction is considered an evolutionary dead end for metazoans, but bdelloid rotifers challenge this view as they appear ... [ReadMore..]

Horizontal gene transfer in bdelloid rotifers is ancient, ongoing and ...

Horizontal Gene Transfer In Bdelloid Rotifers Is Ancient, Ongoing And ...

Nov 4, 2015 ... Bdelloid rotifers are microscopic animals that contain a higher proportion of horizontally transferred, non-metazoan genes in their genomes ... [ReadMore..]

Bdelloid rotifers (Rotifera, Bdelloidea) of China: diversity and new ...

Bdelloid Rotifers (Rotifera, Bdelloidea) Of China: Diversity And New ...

Bdelloid rotifers are a group of microscopic invertebrates known for their obligate parthenogenesis and exceptional resistance to extreme environments. Their diversity and distributions are poorly studied in Asia, especially in China. In order to better understand the species distribution and diversity of bdelloid rotifers in China, a scientific surveys of habitats was conducted with 61 samples (both terrestrial and aquatic habitats) from 11 provinces and regions of China, ranging from tropics to subtropics with a specific focus on poorly sampled areas (Oriental) during September 2017 to October 2018. A total of 59 morphospecies (including subspecies) were found, of which, thirty-nine morphospecies (including one genus) are new records for China, almost doubling the number of previous records. Four rare morphospecies (Adineta cf. acuticornis Haigh, A. beysunae Örstan, Habrotrocha ligula loxoglotta De Koning and H. serpens Donner) are depicted and redescribed, and an updated checklist of Chinese bdelloids wit Jun 16, 2020 ... Bdelloid rotifers are a group of microscopic invertebrates known for their obligate parthenogenesis and exceptional resistance to extreme ... [ReadMore..]