نتایج جستجو برای: diploids

تعداد نتایج: 1107  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2001
E Tüzel V Sevim A Erzan

By using a bit-string model of evolution, we find a successful route to diploidy and sex in simple organisms. Allowing the sexually reproducing diploid individuals to also perform mitosis, as they do in a haploid-diploid cycle, leads to the complete takeover of the population by sexual diploids. This mechanism is so robust that even the accidental conversion and pairing of only two diploids giv...

2018
Stefano Peruzzi Velmurugu Puvanendran Guido Riesen Rudi Ripman Seim Ørjan Hagen Silvia Martínez-Llorens Inger-Britt Falk-Petersen Jorge M O Fernandes Malcolm Jobling

Diploid and triploid Atlantic salmon, Salmo salar were fed high-protein, phosphorus-rich diets (56-60% protein; ca 18g phosphorus kg-1 diet) whilst being reared at low temperature from start-feeding until parr-smolt transformation. Performances of salmon fed diets based on fish meal (STD) or a mix of fishmeal and hydrolysed fish proteins (HFM) as the major protein sources were compared in terms...

Journal: :Genetics 1974
D A Smith

When ascospores from crosses of certain strains were germinated under conditions selective for heterozygosity of complementing markers on one linkage group, a portion of the resulting colonies were also heterozygous for unselected markers on other chromosomes, implying multiple disomy. The frequency of disomy and the pattern of marker homozygosity are consistent with most or all multiple disomi...

Journal: :Proceedings of the National Academy of Sciences 1939

Journal: :Research, Society and Development 2021

We compared the anatomy, density, chemical contents, and bioenergy values of Eucalyptus grandis hybrids x urophylla wood originating from diploids, triploids tetraploids. hypothesize that with different degrees ploidy have variations as a result sets chromosomes producing phenotypic expressions constituents, such variation in cell size frequency, which would directly influence quality. Twenty-y...

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