Resultados de búsqueda - "natural selection"

Complete mitogenome, phylogenetic and SNP-data analysis of jakumaru (Bos taurus), a prime bull from a Peruvian breeding core herd por Estrada Cañari, Richard, Romero Avila, Yolanda Madelein, Figueroa Venegas, Deyanira Antonella, Quilcate Pairazamán, Carlos Enrique, León Trinidad, Silvia Eliana, Casanova Nuñez Melgar, David pavel, Maicelo, Jorge L., Arbizu, Carlos I.

“…The study emphasizes the biological diversity and the evolution of the Simmental breed, influenced by natural selection, breeding practices, and genetic drift. …”
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Landscape genomics reveals regions associated with adaptive phenotypic and genetic variation in Ethiopian indigenous chickens por Getachew, Fasil, Derks, M.F.L., Dessie, Tadelle, Hanotte, Olivier H., Barros, C.P., Crooijmans, R.P.M.A., Komen, H., Bastiaansen, J.W.M.

“…We performed signatures of selection analyses ( and XP-EHH) to detect footprints of natural selection, and redundancy analyses (RDA) to determine genotype-environment and genotype-phenotype-associations. …”
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Geographic and breed distribution patterns of an A/G Polymorphism resent in the Mx gene suggests balanced selection in village chickens por Ommeh, S., Jin, L.N., Eding, H., Muchadeyi, F.C., Sulandari, S., Danbaro, G., Wani, C.E., Nie, Q.H., Zhang, X. Q., Ndila, M., Preisinger, R., Chen, G.H., Yousif, I. A., Heo, K.N., Oh, S.J., Tapio, M., Masiga, Daniel K., Hanotte, Olivier H., Weigend, S., Han Jianlin

“…In indigenous village chicken and red junglefowl, we propose that both A and G alleles have been maintained by natural selection for disease resistance through a balancing selection mechanism.…”
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Assessment of physiological adaptation of indigenous and crossbred cattle to hypoxic environment in Ethiopia por Wuletaw, Z., Wurzinger, Maria, Holt, T., Dessie, Tadelle, Sölkner, Johann

“…The good adaptation is most likely due to natural selection. Understanding this adaptation model requires investigation of the biological mechanisms and the underlying genetics.…”
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Genetic considerations in ecosystem restoration using native tree species por Thomas, E., Jalonen, R., Loo, J., Boshier, D., Gallo, L., Cavers, S., Bordacs, S., Smith, Pete, Bozzano, M.

“…Our discussion is organised across three themes: (i) species selection and the sourcing of forest reproductive material; (ii) increasing resilience by fostering natural selection, ecological connectivity and species associations; and (iii) measuring the success of restoration activities. …”
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Identification and molecular analysis of antimicrobial resistant Salmonella isolates obtained from pigs slaughtered at Wambizzi abattoir in Uganda por Tinega, G.M.

“…Codon-based Test of Neutrality analysis between sequences revealed P-value less than 0.05, an indication of strong forces of natural selection pressure acting at the sequence type level. …”
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Selective constraints in cold‐region wild boars may defuse the effects of small effective population size on molecular evolution of mitogenomes por Jianhai Chen, Pan Ni, Thuy Nhien Tran Thi, Kamaldinov, E.V., Petukhovm V.L., Han Jianlin, Xiangdong Liu, Šprem, N., Shuhong Zhao

“…Spatial range expansion during population colonization is characterized by demographic events that may have significant effects on the efficiency of natural selection. Population genetics suggests that genetic drift brought by small effective population size (Ne) may undermine the efficiency of selection, leading to a faster accumulation of nonsynonymous mutations. …”
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Global agenda for livestock research por Fitzhugh, H.A.

“…In return, research on genetic resistance developed through natural selection in livestock populations in developing regions, may provide environmentally friendly means to control livestock disease and parasites in developed regions. …”
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Differential water-use strategies and drought resistance in Trichloris crinita plants from contrasting aridity origins por Quiroga, Raul Emiliano, Fernandez, Roberto J., Golluscio, Rodolfo Angel, Blanco, Lisandro Javier

“…In arid environments, water availability is the main limiting factor for primary production, and it is expected that not only drought-resistance, but also plant strategies for soil water use will be under natural selection. Our aim was to investigate the strategies of soil water use and the responses to water shortage that lead to variability in drought resistance in Trichloris crinita plants (a native forage grass of northwestern Argentina) from sites with contrasting aridity. …”
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Markhor-derived introgression of a genomic region encompassing PAPSS2 confers high-altitude adaptability in Tibetan goats por Chao Li, Yujiang Wu, Bingchun Chen, Yudong Cai, Kalds, P., Shiwei Zhou, Jingchen Zhang, Ping Zhou, Shangqu Gan, Ting Jia, Tianchun Pu, Langda Suo, Yan Li, Ke Zhang, Lan Li, Purevdorj, M., Xihong Wang, Ming Li, Yu Wang, Yao Liu, Shuhong Huang, Sonstegard, T., Ming-Shan Wang, Kemp, Stephen J., Pausch, H., Yulin Chen, Han Jianlin, Yu Jiang, Xiaolong Wang

“…In conclusion, our results uncover a hitherto unknown contribution of PAPSS2 to high-altitude adaptability in Tibetan goats on QTP, following interspecific introgression and natural selection.…”
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Genetic diversity and population structure of a core collection of Mediterranean durum wheat accessions using DArTseq markers por Laribi, Marwa, Ben M’Barek, Sarrah, Velasco-Cuervo, Sandra M., Hwang, Sheau-Fang, Yahyaoui, Amor H., Strelkov, Stephen E.

“…Background Durum wheat was domesticated in the Fertile Crescent and later spread to the Mediterranean, where human and natural selection led to the establishment of local landraces. …”
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Can achene selection in sunflower crop–wild hybrids by pre-dispersal seed predators hasten the return to phenotypically wild sunflowers por Presotto, Alejandro Daniel, Pandolfo, Claudio Ezequiel, Poverene, Maria Monica, Cantamutto, Miguel Angel

“…After two generations of natural selection exerted by birds (mostly by Eared Dove and Monk Parakeets), achene and plant traits of the crop–wild hybrid progeny were compared with the same hybrid progeny without any selection by birds. …”
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Konsekvenser av inavel under många generationer : populationsgenetiska mekanismer por Johansson, Carita

Effects of superparasitism on immature and adult stages of Diachasmimorpha longicaudata Ashmead (Hymenoptera: Braconidae) reared on Ceratitis capitata Wiedemann (Diptera: Tephritid... por Devescovi, Francisco, Bachmann, Guillermo Enrique, Nussenbaum, Ana Laura, Viscarret, Mariana Mabel, Cladera, Jorge Luis, Segura, Diego Fernando

“…The optimal use of available host by parasitoid insects should be favoured by natural selection. For solitary parasitoids, superparasitism (i.e. the egg-laying of several eggs/host) may represent a detrimental phenomenon both in a biological and an applied sense, but under certain circumstances it may be adaptive. …”
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Effect of water availability and seed source on physical dormancy break of Vicia villosa ssp. villosa por Renzi Pugni, Juan Pablo, Chantre Balacca, Guillermo Ruben, Cantamutto, Miguel Angel

“…As PY is considered a seed trait modulated by natural selection, populations from different origins are expected to show different responses to environmental regulatory factors. …”
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Genetic and morphometric markers are able to differentiate three morphotypes belonging to Section Algarobia of genus Prosopis (Leguminosae, Mimosoideae) por Ferreyra, Laura Ines, Vilardi, Juan Cesar, Verga, Anibal, López, Victoria, Saidman, Beatriz Ofelia

“…All results indicated that despite the occurrence of natural hybridization and introgression, interspecific gene flow would be limited by hybrid breakdown or natural selection favouring the maintenance of species integrity.…”
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Cassava genome from a wild ancestor to cultivated varieties por Wang, W., Feng, B, Xiao, Z, Zhou, X, Li, P, Zhang, W, Wang, Y., Lindberg Møller, B, Zhang, P., Luo, M, Xiao, G, Liu, J, Yang, J, Chen, S., Rabinowicz, P.D., Chen, X., Zhang, HB, Ceballos, H., Lou, Q, Zou, M, Carvalho, LJCB, Zeng, C, Xia, J., Sun, S, Fu, Y, Wang, H., Lu, C., Ruan, M, Zhou, S., Wu, Z, Liu, H, Kannangara, RM, Jørgensen, K, Neale, RL, Bonde, M, Heinz, N, Zhu, W, Wang, S., Zhang, Y., Pan, K, Wen, M, Ma, P, Li, Z, Hu, M, Liao, W, Hu, W, Zhang, S., Pei, J, Guo, A, Guo, J, Zhang, J., Zhang, Z., Ye, J, Ou, W, Ma, Y, Liu, X, Tallon, LJ, Galens, K, Ott, S, Huang, J, Xue, J, An, F, Yao, Q, Lu, X, Fregene, Martin A., Becerra López Lavelle, Luis Augusto, Wu, J., You, FM, Chen, M., Hu, S., Wu, G., Zhong, S, Ling, P, Chen, Y., Wang, Q., Liu, G, Liu, B, Li, K, Peng, M

“…Our analyses reveal that genes involved in photosynthesis, starch accumulation and abiotic stresses have been positively selected, whereas those involved in cell wall biosynthesis and secondary metabolism, including cyanogenic glucoside formation, have been negatively selected in the cultivated varieties, reflecting the result of natural selection and domestication. Differences in microRNA genes and retrotransposon regulation could partly explain an increased carbon flux towards starch accumulation and reduced cyanogenic glucoside accumulation in domesticated cassava. …”
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Different drought‑adaptive capacity of a native Patagonian tree species (Nothofagus pumilio) resulting from local adaptation por Soliani, Carolina, Mattera, María Gabriela, Marchelli, Paula, Azpilicueta, Maria Marta, Dalla Salda, Guillermina

“…Pre-dawn water potential differed between the provenances from xeric and mesic conditions under severe water deficit. Natural selection was inferred from the comparison of differentiation at neutral markers and phenotypic traits (FST vs. …”
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El ser humano y la economía de la naturaleza por Cure, José R., Gutiérrez, Andrew P.

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Candidate Gene Approach for Parasite Resistance in Sheep – Variation in Immune Pathway Genes and Association with Fecal Egg Count por Periasamy, Kathiravan, Pichler, Rudolf, Poli, Mario Andres, Cristel, Silvina Lujan, Cetra, Bibiana Maria, Medus, Pablo Daniel, Basar, Muladno, Thiruvenkadan, A.K., Ramasamy, Saravanan, Ellahi, Masroor Babbar, Mohammed, Faruque, Teneva, Atanaska, Shamsuddin, Mohammed, Garcia Podesta, Mario, Diallo, Adama

“…To understand the influence of natural selection processes, SNP loci located in chromosome 3 were utilized to reconstruct haplotypes, the diversity of which showed significant deviations from selective neutrality. …”
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