“We might consider this as the next evolutionary step [in ants].”
, making them “chimeras,” researchers report in the April 7) are the first known species that requires chimerism to create fertile males.
Most animals develop from a sperm cell and an egg cell uniting into one, combining their DNA. As a creature grows, all of the subsequent cells, save for sex cells, carry two sets of DNA-bearing chromosomes, one from each parent. In other words, these somatic cells all carry the same genetic information. Sperm and egg cells contain just one set of chromosomes.
So Darras and colleagues collected hundreds of yellow crazy ants from across East and Southeast Asia. Analyzing females — queens and workers — revealed that royalty in this species has a genetic source. Reproductive queens came from combining sperm and egg cells from the same lineage, which the researchers dubbed R. Workers were hybrids of the two different lineages, the other being called W. In other words, workers had R/W genomes, while queens had R/R genomes.
日本 最新ニュース, 日本 見出し
Similar News:他のニュース ソースから収集した、これに似たニュース記事を読むこともできます。
Metro To Reopen Yellow Line On May 7 After Eight Months Of Construction On Bridge, TunnelMetro’s Yellow Line is reopening to riders on Sunday, May 7. But the line will only run from Huntington to Mt. Vernon Square instead of Greenbelt. Trains will run every 8 minutes during the day.
続きを読む »
Yellow Line to return May 7 after eight-month bridge, tunnel projectAfter wear and tear over decades, crews reinforced a tunnel that juts into the Potomac River from L’Enfant Plaza and re-anchored tracks on a nearby bridge.
続きを読む »
Metro’s Yellow Line Will FINALLY Reopen on May 7 - WashingtonianThe line has been under construction since September. When it reopens, trains will travel between Huntington and Mt. Vernon Square.
続きを読む »
Chlöe Bailey Brightens ‘Praise This’ Premiere in Yellow Corset Dress With Sheer DetailBailey plays the lead in the film, who dreams of music stardom beyond the choir, but first, she must survive national youth choir competitions.
続きを読む »
FasTrak sure stirs up drivers’ strong emotions: RoadshowPlus, picking between I-5 and 101 for trip south and interpreting what yellow light means.
続きを読む »
Dream Note's whole world is yellow in second set of 'Lemonade' teaser images | allkpopDream Note have entered a grocery store that's completely yellow!Currently gearing up for the release of their 5th single album 'Secondary Page', …
続きを読む »