Seed viability in Bursera : The relative contribution of environmental variation and phylogenetic relatedness

The modern evolutionary synthesis suggests that both environmental variation and genetic diversity are critical determinants of pathogen success. However, the relative contribution of these two sources of variation is not routinely measured. To estimate the relative contribution of plasticity and genetic diversity for virulence-associated phenotypes in a generalist plant pathogen, we grew a population of 15 isolates of Botrytis cinerea from throughout the world, under a variety of in vitro and in planta conditions. Under in planta conditions, phenotypic differences between the isolates were determined by the combination of genotypic variation within the pathogen and environmental variation. In contrast, phenotypic differences between the isolates under in vitro conditions were predominantly determined by genetic variation in the pathogen. Using a correlation network approach, we link the phenotypic variation under in vitro experimental conditions to phenotypic variation during plant infection. This study indicates that there is a high level of phenotypic variation within B. cinerea that is controlled by a mixture of genetic variation, environment, and genotype × environment. This argues that future experiments into the pathogenicity of B. cinerea must account for the genetic and environmental variation within the pathogen to better sample the potential phenotypic space of the pathogen.

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Multidimensional Anxiety and Content-specificity Effects in Preferential Processing of Threat

European Psychologist ◽

10.1027//1016-9040.8.4.252 ◽

2003 ◽

Vol 8 (4) ◽

pp. 252-265 ◽

Cited By ~ 9

Author(s):

Manuel G. Calvo ◽

P. Avero ◽

M. Dolores Castillo ◽

Juan J. Miguel-Tobal

Keyword(s):

Selective Attention ◽

Cognitive Biases ◽

Naming Task ◽

Color Naming ◽

Memory Bias ◽

Ego Threat ◽

Phobic Anxiety ◽

Relative Contribution ◽

Content Specificity ◽

Specificity Effects

We examined the relative contribution of specific components of multidimensional anxiety to cognitive biases in the processing of threat-related information in three experiments. Attentional bias was assessed by the emotional Stroop word color-naming task, interpretative bias by an on-line inference processing task, and explicit memory bias by sensitivity (d') and response criterion (β) from word-recognition scores. Multiple regression analyses revealed, first, that phobic anxiety and evaluative anxiety predicted selective attention to physical- and ego-threat information, respectively; cognitive anxiety predicted selective attention to both types of threat. Second, phobic anxiety predicted inhibition of inferences related to physically threatening outcomes of ambiguous situations. And, third, evaluative anxiety predicted a response bias, rather than a genuine memory bias, in the reporting of presented and nonpresented ego-threat information. Other anxiety components, such as motor and physiological anxiety, or interpersonal and daily-routines anxiety made no specific contribution to any cognitive bias. Multidimensional anxiety measures are useful for detecting content-specificity effects in cognitive biases.

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Phylogenetic relatedness and immediate early gene expression in black-capped chickadees

PsycEXTRA Dataset ◽

10.1037/e598052013-047 ◽

2012 ◽

Author(s):

Christopher B. Sturdy ◽

Marc T. Avey ◽

Laurie L. Bloomfield ◽

Julie E. Elie ◽

Todd M. Freeberg ◽

...

Keyword(s):

Gene Expression ◽

Immediate Early Gene ◽

Early Gene ◽

Immediate Early ◽

Phylogenetic Relatedness ◽

Early Gene Expression

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Monitoring Seed Viability of Fifteen Species After Storage in the Irish Threatened Plant Genebank

Biology & Environment Proceedings of the Royal Irish Academy ◽

10.3318/bioe.2003.103.2.59 ◽

2003 ◽

Vol 103 (2) ◽

pp. 59-67 ◽

Cited By ~ 2

Author(s):

D. G.F Walsh ◽

S. Waldren ◽

J. R. Martin

Keyword(s):

Seed Viability ◽

Threatened Plant

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GENETIC DIVERSITY IN BAMBARA GROUNDNUT (Vigna subterranean) AS REVEALED BY MOLECULAR WEIGHTS OF THE SEEDS’ PROTEINS

Bangladesh Journal of Plant Breeding and Genetics ◽

10.3329/bjpbg.v30i2.35528 ◽

2018 ◽

Vol 30 (2) ◽

pp. 19-28

Author(s):

A. J. Oludare ◽

J. I. Kioko ◽

A. A. Akeem ◽

A. T. Olumide ◽

K. R. Justina ◽

...

Keyword(s):

Genetic Diversity ◽

Seed Proteins ◽

Electrophoretic Analysis ◽

Protein Characterization ◽

Bambara Groundnut ◽

Vigna Subterranea ◽

Phylogenetic Relatedness ◽

Molecular Weights ◽

National Centre ◽

Standard Marker

Nine accessions of Bambara groundnut (Vigna subterranea (L.) Verdc.,syn. Voandzeia subterranea (L.) Thouars ex DC.) obtained from National Centre for Genetic Resources and Biotechnology (NACGRAB), Ibadan, Oyo state, were assessed for their genetic and phylogenetic relatedness through electrophoretic analysis of the seed proteins. 0.2g of the seeds were weighed and macerated with mortar and pestle in 0.2M phosphate buffer containing 0.133M of acid (NaH2PO4) and 0.067 of base (Na2HPO4) at pH 6.5. Protein characterization with standard marker revealed that the seeds of the nine accessions contained proteins (B.S.A, Oval Albumin, Pepsinogen, Trypsinogen and Lysozyme) with molecular weights ranging from 66kda and above, 45 – 65 kDa, 44 – 33 kda, 32-24 kDa and 23-14 kDa, respectively. The student T-test revealed that accessions B, C, E, F, H and I have molecular weights not significantly different from one another (P<0.05) while samples A, D and G showed significantly different values (P>0.05). All the accessions had at least two proteins and two major bands in common. The study revealed intra-specific similarities and genetic diversity in protein contents among the nine accessions of Bambara groundnut (Vigna subterraranea (L.) Verdc.syn

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