Results 101 to 110 of about 5,291,009 (397)

A stepwise emergence of evolution in the RNA world

open access: yesFEBS Letters, EarlyView.
How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley   +1 more source

Using genotyping-by-sequencing to understand Musa diversity : [P449] [PDF]

open access: yes, 2014
This project is part of a larger effort to apply genomics technologies to assess genetic diversity and to advance genetic improvement efforts in Musa (banana and plantain), a major staple food crop in the developing world.
Chan, Agnes P.   +6 more
core  

Coalescence, genetic diversity in sexual populations under selection [PDF]

open access: yes, 2013
In sexual populations, selection operates neither on the whole genome, which is repeatedly taken apart and reassembled by recombination, nor on individual alleles that are tightly linked to the chromosomal neighborhood. The resulting interference between
Kessinger, Taylor A.   +2 more
core   +2 more sources

A view of Neandertal genetic diversity

open access: yesNature Genetics, 2000
In order to further study of the Neandertal mtDNA gene pool, we analyzed the amino acid composition and extent of amino acid racemization in 15 bones found in the Vindija Cave (Croatia). Seven samples proved to have a high content of amino acids, an amino acid composition similar to that of the contemporary bone, and a low level of racemization of ...
Krings M   +9 more
openaire   +6 more sources

Phytohormone and Light Regulation of Chlorophyll Degradation

open access: yesFrontiers in Plant Science, 2017
Degreening, due to the net loss of chlorophyll (Chl), is the most prominent symptom during the processes of leaf senescence, fruit ripening, and seed maturation. Over the last decade or so, extensive identifications of Chl catabolic genes (CCGs) have led
Xiaoyu Zhu   +7 more
doaj   +1 more source

B cell mechanobiology in health and disease: emerging techniques and insights into therapeutic responses

open access: yesFEBS Letters, EarlyView.
B cells sense external mechanical forces and convert them into biochemical signals through mechanotransduction. Understanding how malignant B cells respond to physical stimuli represents a groundbreaking area of research. This review examines the key mechano‐related molecules and pathways in B lymphocytes, highlights the most relevant techniques to ...
Marta Sampietro   +2 more
wiley   +1 more source

Evolution and genetic diversity of Theileria [PDF]

open access: yesInfection, Genetics and Evolution, 2014
Theileria parasites infect a wide range of domestic and wild ruminants worldwide, causing diseases with varying degrees of severity. A broad classification, based on the parasite's ability to transform the leukocytes of host animals, divides Theileria into two groups, consisting of transforming and non-transforming species.
Naoaki Yokoyama   +3 more
openaire   +3 more sources

Evolutionary interplay between viruses and R‐loops

open access: yesFEBS Letters, EarlyView.
Viruses interact with specialized nucleic acid structures called R‐loops to influence host transcription, epigenetic states, latency, and immune evasion. This Perspective examines the roles of R‐loops in viral replication, integration, and silencing, and how viruses co‐opt or avoid these structures.
Zsolt Karányi   +4 more
wiley   +1 more source

Genetic diversity and population structure of Peronosclerospora sorghi isolates of Sorghum in Uganda [PDF]

open access: yes, 2018
Sorghum is the third most important staple cereal crop in Uganda after maize and millet. Downy mildew disease is one of the most devastating fungal diseases which limits the production and productivity of the crop.
Angele, I. (Ibanda)   +12 more
core  

Genetic variability and genetic diversity in sunflower

open access: yesElectronic Journal of Plant Breeding, 2016
One hundred and seventy four accessions of sunflower were evaluated in a randomized block design with two replications during Kharif 2010-11 at Regional Agricultural Research Station, Nandyal, Andhra Pradesh to investigate the extent of genetic variability and genetic diversity.
Y. Padmalatha   +3 more
openaire   +3 more sources

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