Results 91 to 100 of about 136,690 (209)

Karyotype diversity and interspecific 4C DNA variation inBupleurum

Biologia plantarum, 1993
Investigation on karyotype, 4C nuclear DNA amount and interphase nuclear volume (INV) of different HimalayanBupleurum species belonging toUmbelliferae revealed genetic differentiation. Numerical and structural alternation of chromosomes in interspecific level were manifested in their statistically significant altered species specific 4C nuclear DNA ...
A. B. Das, R. Mallick
openaire   +1 more source

Global DNA cytosine methylation as an evolving trait: phylogenetic signal and correlated evolution with genome size in Angiosperms

Frontiers in Genetics, 2015
DNA cytosine methylation is a widespread epigenetic mechanism in eukaryotes, and plant genomes commonly are densely methylated. Genomic methylation can be associated with functional consequences such as mutational events, genomic instability or altered ...
Conchita eAlonso, Ricardo ePérez, Pilar eBazaga, Carlos M Herrera   +3 more
doaj   +1 more source

Proportion of common wheat kernels in commercial samples of durum wheat by chemical methods

, 1970
Durum wheat (Triticum durum Desf.) is used for production of semolina which is the required raw material for the elaboration of good quality pasta products. Common wheat (T.
Carbonero Zalduegui, Pilar, García Olmedo, Francisco   +1 more
core  

Study on the composition characteristics of the intestinal microbiota in three species of cranes under captive conditions

Frontiers in Ecology and Evolution
Cranes are globally threatened yet understudied in terms of their gut microbiome, which is crucial for their health in captivity. This study examines the gut microbiota composition of three captive crane species using 16S rRNA gene sequencing of fecal ...
Xiaodong Gao, Yuehuan Dong, Nannan Li, Feng Wen, Shuai Shang, Qingming Wu, Honghai Zhang   +6 more
doaj   +1 more source

Intra and interspecific vegetative variability of Astrocaryum chonta and A. javarense (Arecaceae) from Jenaro Herrera, Loreto, Peru

Revista Peruana de Biología, 2014
Vegetative quantitative characters from adult, juvenile II, juvenile I and seedlings of Astrocaryum chonta and Astrocaryum javarense for four populations of Jenaro Herrera were analyzed in order to observe the patterns of vegetative variation at intra ...
Miguel Machahua, Francis Kahn, Betty Millán   +2 more
doaj   +1 more source

Avian Song Complexity is Associated With High Field Metabolic Rate [PDF]

, 2006
Question: Is the production of bird song costly? Analyses of oxygen consumption during singing provided conflicting results. Data studied: Data on 28 passerine species with quantitative information on song complexity and field metabolic rate, which ...
Garamszegi, László Zsolt, Moller, Anders Pape, Moreno, Juan   +2 more
core  

Chromosome profile ofLeishmania donovani: Interstrain and interspecific variations

Journal of Biosciences, 1998
The genome ofLeishmania donovani AG83, a virulent strain causing kala-azar, was resolved into 29 chromosomal bands by pulsed field gel electrophoresis (pFGE) under standardized conditions. Comparison of the karyotype with those of other strains and species revealed variations.
Siddhartha Sankar Ghosh, Sandeep Mukerjee, Samit Adhya   +2 more
openaire   +1 more source

A practical, step-by-step, guide to taxonomic comparisons using Procrustes geometric morphometrics and user-friendly software (part B): group comparisons

European Journal of Taxonomy
In this second part of the study, using a ‘clean’ dataset without very low precision landmarks and outliers, I describe how to compare mandibular size and shape using Procrustes methods in adult North American marmots.
Andrea Cardini
doaj   +1 more source

Sexual Size Dimorphism in Rays and Skates (Elasmobranchii: Batoidea)

Ecology and Evolution
Sexual size dimorphism (SSD) is a widely observed but poorly understood phenomenon in which male and female animals differ in body size (e.g., length or mass).
Joel H. Gayford, Scott G. Seamone, Duncan J. Irschick, Andrew Chin, Jodie L. Rummer   +4 more
doaj   +1 more source

Effects of hydroperiod on metamorphosis in \u3ci\u3eRana sphenocephala\u3c/i\u3e [PDF]

, 2001
Hydroperiod, the time a temporary pond holds water, is an important factor influencing recruitment in amphibian populations and structuring amphibian communities.
Ryan, Travis J, Winne, Christopher T.
core   +1 more source