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☆ Scientists fully sequence human Y chromosome for the first time
▼ + stars: | 2023-08-25 | by ( Katie Hunt | ) edition.cnn.com time to read: +7 min

However, over half of the sequences within the Y chromosome, the smallest and most complicated of the 46 human chromosomes, remained unknown. Now, the same group of researchers has filled in the missing information, publishing a complete Y chromosome sequence Wednesday in the journal Nature. “This new analysis will allow us to better understand the regions of the Y chromosome that have regulatory functions and may encode mRNA and proteins.”Many people begin to lose their Y chromosome in some of their cells as they age, particularly those cells that undergo rapid turnover, such as blood cells. Having a complete Y chromosome genetic reference may help scientists and doctors further explore this potential link. “However, it has been questioned whether loss of the Y chromosome is a biomarker of biological aging or whether loss of the Y chromosome has a direct effect on the health of men,” he said.

Persons: ”, Monika Cechova, Cechova, Kenneth Walsh, ” Walsh, Walsh, it’s, ” Cechova, Charles Lee Organizations: CNN —, University of California, University of Virginia School of Medicine, Human Genome Research, T2T Consortium, Jackson Laboratory, Genomic Medicine Locations: Santa Cruz

☆ Scientists have completely sequenced the human Y chromosome for the first time, with huge implications for heath and evolution research
▼ + stars: | 2023-08-24 | by ( Jenny Mcgrath | ) www.businessinsider.com time to read: +7 min

Researchers published two new papers on the human Y chromosome. That's because the Y chromosome is "the most complex, most repetitive chromosome," said Monika Cechova, a postdoctoral researcher at the University of California, Santa Cruz. AdvertisementAdvertisementKaren Miga was one of the researchers involved in fully sequencing the human Y chromosome. The worldwide Y chromosomeFor the single-sequence paper, researchers sequenced the Y chromosome of a single individual of European descent, known as the HG002 genome. Because of all the gaps in the Y chromosome genome reference, researchers haven't fully understood how the chromosome contributes to overall health.

Persons: Karen Miga, Monika Cechova, Carolyn Lagattuta, Pascal Gagneux, wasn't, Gagneaux, Evan Eichler, Cechova, Miga, Gagneux, haven't Organizations: Service, Telomere, University of California, UC Santa Cruz, UC San Diego, Center for Academic Research, Human Genome Research Institute, Jackson Laboratory, Genomic Medicine Locations: Wall, Silicon, Nature, Santa Cruz, Anthropogeny

☆ Scientists solve the genetic puzzle of sex-related Y chromosome
▼ + stars: | 2023-08-23 | by ( Will Dunham | ) www.reuters.com time to read: +4 min

Males possess one Y and one X chromosome while females have two X chromosomes, with some exceptions. But until now, the Y chromosome part of the human genome had contained big gaps. In addition to identifying some additional Y chromosome genes, the researchers found that some DNA from the chromosome had been mistaken in previous studies as bacterial in nature. The first complete human genome - albeit with the Y chromosome partial - was published last year. Fully sequencing the Y chromosome adds to this.

Persons: Karen Miga, Carolyn Lagattuta, Arang Rhie, Monika Cechova, Cechova, Will Dunham, Rosalba O'Brien Organizations: University of California, UC Santa Cruz, REUTERS, Rights, Wednesday, U.S ., Genome Research, of California, UCSC, Thomson Locations: Santa Cruz , California, U.S, Handout, Santa Cruz

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