scholarly journals Linking foraging and breeding strategies in tropical seabirds

2021 ◽  
Author(s):  
L. M. Soanes ◽  
J. A. Green ◽  
M. Bolton ◽  
G. Milligan ◽  
F. Mukhida ◽  
...  
Keyword(s):  
Breeding Strategies

Biochemical Fingerprint of Greek Sideritis spp.: Implications for Potential Drug Discovery and Advanced Breeding Strategies

2019 ◽  
Vol 08 (04) ◽  
Author(s):  
Fotini Trikka ◽  
Sofia Michailidou ◽  
Antonios M. Makris ◽  
Anagnostis Argiriou
Keyword(s):  
Drug Discovery ◽  
Breeding Strategies ◽  
Potential Drug

scholarly journals Evidence for use of both capital and income breeding strategies in the mangrove tree crab, Aratus pisonii

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jade Carver ◽  
Morgan Meidell ◽  
Zachary J. Cannizzo ◽  
Blaine D. Griffen
Keyword(s):  
Breeding Season ◽  
Breeding Strategy ◽  
Reproductive Period ◽  
Breeding Strategies ◽  
Mangrove Tree ◽  
Income Breeding ◽  
Aratus Pisonii ◽  
Breeding Seasons ◽  
And Storage ◽  
Capital And Income Breeding

AbstractTwo common strategies organisms use to finance reproduction are capital breeding (using energy stored prior to reproduction) and income breeding (using energy gathered during the reproductive period). Understanding which of these two strategies a species uses can help in predicting its population dynamics and how it will respond to environmental change. Brachyuran crabs have historically been considered capital breeders as a group, but recent evidence has challenged this assumption. Here, we focus on the mangrove tree crab, Aratus pisonii, and examine its breeding strategy on the Atlantic Florida coast. We collected crabs during and after their breeding season (March–October) and dissected them to discern how energy was stored and utilized for reproduction. We found patterns of reproduction and energy storage that are consistent with both the use of stored energy (capital) and energy acquired (income) during the breeding season. We also found that energy acquisition and storage patterns that supported reproduction were influenced by unequal tidal patterns associated with the syzygy tide inequality cycle. Contrary to previous assumptions for crabs, we suggest that species of crab that produce multiple clutches of eggs during long breeding seasons (many tropical and subtropical species) may commonly use income breeding strategies.

scholarly journals The Tomato Interspecific NB-LRR Gene Arsenal and Its Impact on Breeding Strategies

Genes ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 184
Author(s):  
Giuseppe Andolfo ◽  
Nunzio D’Agostino ◽  
Luigi Frusciante ◽  
Maria Raffaella Ercolano
Keyword(s):  
Evolutionary Dynamics ◽  
Special Focus ◽  
Breeding Strategies ◽  
Adaptive Diversification ◽  
Solanum Lycopersicum L ◽  
Solanaceae Species ◽  
Specific Pathogen ◽  
Adaptive Processes ◽  
Species Specific ◽  
R Loci

Tomato (Solanum lycopersicum L.) is a model system for studying the molecular basis of resistance in plants. The investigation of evolutionary dynamics of tomato resistance (R)-loci provides unique opportunities for identifying factors that promote or constrain genome evolution. Nucleotide-binding domain and leucine-rich repeat (NB-LRR) receptors belong to one of the most plastic and diversified families. The vast amount of genomic data available for Solanaceae and wild tomato relatives provides unprecedented insights into the patterns and mechanisms of evolution of NB-LRR genes. Comparative analysis remarked a reshuffling of R-islands on chromosomes and a high degree of adaptive diversification in key R-loci induced by species-specific pathogen pressure. Unveiling NB-LRR natural variation in tomato and in other Solanaceae species offers the opportunity to effectively exploit genetic diversity in genomic-driven breeding programs with the aim of identifying and introducing new resistances in tomato cultivars. Within this motivating context, we reviewed the repertoire of NB-LRR genes available for tomato improvement with a special focus on signatures of adaptive processes. This issue is still relevant and not thoroughly investigated. We believe that the discovery of mechanisms involved in the generation of a gene with new resistance functions will bring great benefits to future breeding strategies.

scholarly journals Flock composition, breeding strategies and farmers’ traits of interest evaluation of Wollo highland sheep and their F1 crosses

2018 ◽  
Vol 60 (1) ◽  
Author(s):  
Tadesse Amare ◽  
Gebeyehu Goshu ◽  
Berhan Tamir
Keyword(s):  
Breeding Strategies

Genetic trends for live weight traits reflect breeding strategies in registered Charolais Farms in Mexico

2016 ◽  
Vol 48 (8) ◽  
pp. 1729-1738 ◽  
Author(s):  
G. M. Parra-Bracamonte ◽  
N. Lopez-Villalobos ◽  
S. T. Morris ◽  
A. M. Sifuentes-Rincón ◽  
L. A. Lopez-Bustamante
Keyword(s):  
Live Weight ◽  
Breeding Strategies ◽  
Genetic Trends

THE GEOGRAPHICAL DISTRIBUTION OF ALLELIC DIVERSITY, A PRACTICAL MEANS OF PRESERVING AND USING MINOR ROOT CROP GENETIC RESOURCES

2005 ◽  
Vol 41 (4) ◽  
pp. 475-489 ◽  
Author(s):  
VINCENT LEBOT ◽  
ANTON IVANCIC ◽  
KUTTOLAMADATHIL ABRAHAM
Keyword(s):  
Genetic Resources ◽  
Geographical Distribution ◽  
Allelic Diversity ◽  
Core Sample ◽  
Ex Situ ◽  
Breeding Strategies ◽  
Current Conservation ◽  
Crop Genetic Resources ◽  
Root Crop

This paper addresses the preservation and use of minor root crop genetic resources, mostly aroids and yams. Conservation is fraught with difficulty: ex situ collections are expensive to maintain and methods for on-farm conservation have not been studied. Conventional breeding strategies present serious limitations when applied to these species. Furthermore, the evaluation and distribution of improved material are as problematical as its conservation. The similarities shared by these species regarding their domestication, breeding constraints and improvement strategies as well as farmers' needs, are briefly reviewed. Based on these biological constraints, we propose a practical alternative to current conservation and breeding strategies. This approach focuses on the geographical distribution of allelic diversity rather than localized ex situ and/or in situ preservation of genotypes. The practical steps are described and discussed. First, a core sample representing the useful diversity of the species is assembled from accessions selected for their diverse and distant geographic origins, wide genetic distances, quality, agronomic performances and functional sexuality. Second, the geographical distribution of this core sample, in vitro via a transit centre, allows the direct use of selected genotypes by farmers or for breeding purposes. Third, the distribution of genes is realized in the form of clones resulting from segregating progenies and, fourth, farmers select clones with local adaptation.

Reproductive investment in two spider crabs with different breeding strategies

1995 ◽  
Vol 188 (2) ◽  
pp. 261-275 ◽  
Author(s):  
Andrew D. Bryant ◽  
Richard G. Hartnoll
Keyword(s):  
Reproductive Investment ◽  
Breeding Strategies

Contrasted breeding strategies in four sympatric sibling insect species: when a proovigenic and capital breeder copes with a stochastic environment

2011 ◽  
Vol 26 (1) ◽  
pp. 198-206 ◽  
Author(s):  
Pierre-François Pélisson ◽  
Marie-Claude Bel-Venner ◽  
Benjamin Rey ◽  
Lorraine Burgevin ◽  
François Martineau ◽  
...  
Keyword(s):  
Insect Species ◽  
Breeding Strategies ◽  
Stochastic Environment ◽  
Capital Breeder

Breeding Strategies to Improve Production of Agave (Agave spp.)

2019 ◽  
pp. 319-362
Author(s):  
Kelly M. Monja-Mio ◽  
Miguel A. Herrera-Alamillo ◽  
Lorenzo F. Sánchez-Teyer ◽  
Manuel L. Robert
Keyword(s):  
Breeding Strategies ◽  
Improve Production
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