Gonye Rekare reSiberia Rakadzoka Kuupenyu Pashure peMakore 46,000 XNUMX, Uye Rakatanga Kubereka!

Chirevo kubva ku Washington Post yakatsanangura zvakawanikwa zvinoshamisa nemasayendisiti: chikadzi chisingaoneki che roundworm chakange chachengetedzwa muSiberian permafrost kwemakore 46,000, uye pavakachimutsidzira, chisikwa chakatanga kubereka kuburikidza neparthenogenesis - maitiro asingade murume.

Gonye rekare rokuSiberia rakatangazve kurarama pashure pemakore 46,000 1, uye rakatanga kuberekana! XNUMX — Nzvimbo yekudzidza: a) nzvimbo yeDuvanny Yar kunze kweRwizi rweKolyma, kuchamhembe kwakadziva kumabvazuva kweSiberia, Russia. b) maonero ekumusoro kwekunze kunoumbwa nechando wedges uye permafrost silty deposits. c) lithostratigraphic hurongwa hwemadhipoziti, kuratidza nzvimbo yekudzidza rodent kukwereta (denderedzwa dzvuku). d) fossil rodent burrow ine herbaceous tsvina uye mhodzi dzakavigwa mupermafrost deposits; (m arl = mamita pamusoro perwizi). PLOS Genetics

The Yunivhesiti yeHawaii kuMānoa's kuburitswa kwenhau kwakakurukura nezve chipenyu chaive mudormancy yakareba inonzi cryptobiosis kwezviuru zvemakore. Ichi chimiro, chinogona kuchengetedzwa kwenguva yakareba, chinomisa zvese metabolic maitiro, kusanganisira kubereka, kusimudzira, uye kugadzirisa.

Mu PLOS Genetics magazini rakaburitswa nemusi weChina, vaongorori vakaratidza mhando nyowani yehonye zvichienderana nekutevedzana kwavo kwegenome. Vakataura kuti gonye rakanga risati rarongerwa kare.

Yakazotaurwa na Live Live Science kuti nematodes akadai Plectus murrayi uye Tylenchus polyhypnus yakanga yamutsiridzwa kubva kumoss uye herbarium specimens mushure memakumi mashoma emakore. Mhando itsva, Panagrolaimus kolymaensis, zvisinei, akanga ave ari muchando kwemakumi ezviuru zvemakore.

Gonye rekare rokuSiberia rakatangazve kurarama pashure pemakore 46,000 2, uye rakatanga kuberekana! XNUMX — Mukadzi werudzi rweP. kolymaensis ane morphology yakajairika iyo inoratidzwa pano. PLOS Genetics

Holly Bik, nyanzvi yezvipenyu zvegungwa rakadzika, anotenda kuti mamiriyoni emarudzi akasiyana-siyana ehonye dzenematode dzinogona kuwanikwa munzvimbo dzakasiyana-siyana, dzakadai semigero yegungwa, tundras, magwenga, uye ivhu rinoputika. Kunyange zvakadaro, pane izvi, marudzi 5,000 XNUMX emugungwa chete akanyorwa nevatsvakurudzi.

Crow, chiremba wezvematologist kubva kuYunivhesiti yeFlorida uyo akange asina kubatana netsvagiridzo, akapa zano kuPost kuti gonye iri rinogona kunge riri mhuka yakatsakatika mumakore makumi mashanu apfuura.

Gunguwo akataura kuti zvinokwanisika kuti nematode ndiyo isati yatsanangurwa, sezvainogarosangana nayo.

Vesainzi vave nenguva vachiziva kuti zvisikwa zvidiki-diki, zvakaita seyakadzidzwa, zvine simba rekumisa mabasa azvo kuitira kuti zvitsungirire kunyange mamiriro ezvinhu akaipisisa, nekudaro kushaikwa kwekushamisika pamusoro pekurarama kwehonye kwemakore ese iwayo, sezvakataurwa. mukuburitswa kwenhau.

The PLOS Genetics bepa vakagumisa kuti nematodes vane hunyanzvi hunogona kuita kuti vakwanise kurarama kwenguva yakareba yenguva ye geological.

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