Articles tagged with Gene Size
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Researchers identified an ideal small-grain gene, GSE3, and used CRISPR-Cas9 technology to edit it in male sterile lines, achieving fully mechanized hybrid seed production. This breakthrough enables significant yield improvements and enhances food security.
An international team of researchers has successfully read and assembled the whole genome of faba bean, a globally important protein source. The new genome reveals key genes for seed size and provides insights into improving drought and disease resistances, processing quality, and nutritional value.
Researchers from the Chinese Academy of Sciences have developed a method to overcome the tradeoff between rice yield component traits, including panicle number and size. By modifying the cis-regulatory region of the Ideal Plant Architecture 1 gene, they increased grain yield by 15.9% while maintaining tiller number.
A combination of three gene drive technologies could effectively suppress a targeted grey squirrel population while limiting the risk to native species. The combined technology introduces genes that induce infertility in females, allowing for population control.
A gene switch, excessive number of floral organs (eno), plays a crucial role in boosting fruit size during tomato domestication. Analysis reveals that mutations in eno result in larger flowers and fruits, leading to higher yields.
Researchers have created a pan-genome that captures genetic information of 725 cultivated wild tomatoes, revealing nearly 5,000 new genes. This resource promises to help breeders develop more flavorful and sustainable varieties, potentially reducing the need for pesticides.
A study of salmon in Northern Finland found that the gene version urging them to mature earlier has become more prevalent, while the version for larger growth is rarer. This suggests that evolution is at play as salmon adapt to their environment.
A genetic 'dial' controlling body size has been discovered in pigs, with decreased size observed at varying levels of gene expression. The study found that pigs with normal gene expression were average-sized, while those with one copy expressed had a 25% reduction and those without any expressed had a 75% reduction.
A variation in the Cell Size Regulator gene enabled the domestication of large, plump tomatoes thousands of years ago. Farmers selectively cultivated plants with this genetic trait, which boosts fruit weight and increases profit margins.
Scientists have identified new gene families linked to larger neocortex sizes in various mammal species, including humans. The study reveals genes involved in cell signaling and immune response that may contribute to brain development.
A recent study published in PLOS Genetics identified two genes associated with human facial size and found additional candidates for genes affecting facial shape. The research used a genome-wide association study on an African population, providing new insights into the genetic basis of normal human facial variation.
A team of scientists has identified a gene, HMGA2, that explains variation in beak size among Darwin's finches. The gene contributed to a rapid shift in beak size following a severe drought, enabling the medium ground finch to adapt and survive.
Shorter maternal height influences fetal environment, affecting pregnancy length and prematurity risk; birth length and weight mainly influenced by genetic factors. The study's findings highlight the importance of identifying genetic contributors to preterm birth.
A UK Biobank study has found a strong link between fathers' diabetes and their child's low birth weight, with genetic variations potentially explaining this effect. The research used data from 250,000 adults and suggests that treatments aimed at increasing birth weight may not be effective in preventing type 2 diabetes.
A 15-year study found that brain parts can respond to evolutionary stimuli independently, contradicting previous concerted evolution theories. The research identified specific gene sets controlling the size of different brain parts, with little correlation between overall brain and body sizes.
Researchers have isolated a gene related to autism, schizophrenia, and obesity in zebrafish, which may also contribute to human conditions. The KCTD13 gene regulates brain cell growth and is associated with head size at birth.
A study of over 21,000 participants found new genes that boost or lessen the risk of brain atrophy, mental illness, and Alzheimer's disease. The research also uncovered genetic variants associated with individual differences in brain size and intelligence.
Researchers have identified 68 genetic variants involved in platelet formation, including a novel role for tropomyosin 1 in platelet production. The study found that genes associated with heart attacks and strokes overlap with those affecting platelets, offering potential new targets for treatments.
The complete genome of Daphnia pulex has been described, opening up new avenues for understanding the species' response to its environment. The genome contains over 31,000 genes, more than any other animal, including humans.
Researchers identified associations between genetic variations and brain surface area, suggesting a key role for microcephaly genes in human brain evolution. The study found significant links with regulatory regions of the CDK5RAP2 gene, indicating a need to focus on these processes for future research.
Researchers have identified a gene in rice that controls the size and weight of grains. The GIF1 gene is responsible for controlling invertase activity, which is essential for starch production. By overexpressing the GIF1 gene in transgenic lines of rice, scientists were able to increase grain size and weight.
Researchers have identified two key loci responsible for extreme fruit size in tomatoes, including the fas locus that controls cell division and the locule-number locus that affects carpel number. This study provides a significant breakthrough in understanding tomato domestication and opens up new avenues for crop improvement.
Researchers at Mayo Clinic Jacksonville have identified three genes on chromosome 10 associated with Alzheimer's disease. Blood levels of amyloid beta proteins were significantly elevated in asymptomatic young individuals from extended families, indicating a substantial genetic risk factor.
A study published in Science found a mutation in the IGF1 gene that affects body-size differences among dog breeds and may also play a key role in determining human body size. The researchers analyzed DNA from over 3,000 dogs of different breeds to identify genes linked to size variations.
Researchers have identified a piece of doggy DNA that reduces growth in small breeds, ensuring they stay small. The study found a haplotype in all breeds of small dogs, suggesting it is a major contributor to body size.
A recent UCLA study found no association between the MCPH1 and ASPM gene variants and differences in brain size. The researchers used MRI scans to measure brain size in 120 healthy individuals and identified those with these genetic variations, but their findings suggest caution when interpreting evolutionary advantages of these variants.
Two genes, microcephalin and ASPM, linked to brain size have continued to evolve rapidly in humans over the past 37,000 and 5,800 years, respectively. These genetic variants are favored by natural selection and occur more frequently in certain populations.
A new tumor-suppressor gene called mats has been discovered by researchers at Penn State, which works with another tumor suppressor to control tissue growth. The study found that the mats gene can shrink tumors in flies and may regulate cell number and tissue growth by restricting cell proliferation.
Researchers at Ohio State University have created the first DNA gene chip for horses, containing over 3,200 expressed horse genes, allowing for rapid scanning of individual horse genes. This breakthrough could lead to better accuracy in studying human disease and developing new treatments.
Researchers analyzed 99 patient samples and identified patterns of gene activity strongly associated with oestrogen receptor status and tumour grade. These findings may help characterize tumours more effectively and predict patient outcomes, including survival rates and relapse risk.
A new study has found that small head circumference coupled with the ApoE e4 gene variant significantly increases the risk of developing Alzheimer's disease. The research suggests that having a large 'brain reserve' may protect against the disease, with head circumference being one way to measure brain reserve.