دورية أكاديمية
Molecular ecology and selection in the drought-related Asr gene polymorphisms in wild and cultivated common bean ([i]Phaseolus vulgaris[/i] L.)
| العنوان: | Molecular ecology and selection in the drought-related Asr gene polymorphisms in wild and cultivated common bean ([i]Phaseolus vulgaris[/i] L.) |
|---|---|
| المؤلفون: | Cortes, A. J., Chavarro, M. C., Madrinan, S., This, Dominique, Blair, M. W. |
| المساهمون: | Departamento de Biologia, Universidad de los Andes Bogota (UNIANDES), Department of Evolutionary Biology, Uppsala University, Department of Agronomy, University of Georgia USA, Amélioration génétique et adaptation des plantes méditerranéennes et tropicales (UMR AGAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Department of Plant Breeding and Genetics, Cornell University New York |
| المصدر: | ISSN: 1471-2156 ; BMC Genetics ; https://hal.science/hal-01206343Test ; BMC Genetics, 2012, 13, ⟨10.1186/1471-2156-13-58⟩. |
| بيانات النشر: | HAL CCSD BioMed Central |
| سنة النشر: | 2012 |
| مصطلحات موضوعية: | protein, mesoamerican, genome, domestication, diversity, dna polymorphism, nucleotide polymorphism, microsatellite markers, core, collection, salt tolerance, [SDV.BV]Life Sciences [q-bio]/Vegetal Biology |
| الوصف: | UMR AGAP - équipe ID - Intégration des données ; Background: The abscisic acid (ABA) pathway plays an important role in the plants' reaction to drought stress and ABA-stress response (Asr) genes are important in controlling this process. In this sense, we accessed nucleotide diversity at two candidate genes for drought tolerance (Asr1 and Asr2), involved in an ABA signaling pathway, in the reference collection of cultivated common bean (Phaseolus vulgaris L.) and a core collection of wild common bean accessions. Results: Our wild population samples covered a range of mesic (semi-arid) to very dry (desert) habitats, while our cultivated samples presented a wide spectrum of drought tolerance. Both genes showed very different patterns of nucleotide variation. Asr1 exhibited very low nucleotide diversity relative to the neutral reference loci that were previously surveyed in these populations. This suggests that strong purifying selection has been acting on this gene. In contrast, Asr2 exhibited higher levels of nucleotide diversity, which is indicative of adaptive selection. These patterns were more notable in wild beans than in cultivated common beans indicting that natural selection has played a role over long time periods compared to farmer selection since domestication. Conclusions: Together these results suggested the importance of Asr1 in the context of drought tolerance, and constitute the first steps towards an association study between genetic polymorphism of this gene family and variation in drought tolerance traits. Furthermore, one of our major successes was to find that wild common bean is a reservoir of genetic variation and selection signatures at Asr genes, which may be useful for breeding drought tolerance in cultivated common bean. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | hal-01206343; https://hal.science/hal-01206343Test; https://hal.science/hal-01206343/documentTest; https://hal.science/hal-01206343/file/Cortes-BMCGenetics-2012_%7B54DC9508-4569-47E0-B114-C42441692C13%7D.pdfTest; PRODINRA: 326114; WOS: 000309922400001 |
| DOI: | 10.1186/1471-2156-13-58 |
| الإتاحة: | https://doi.org/10.1186/1471-2156-13-58Test https://hal.science/hal-01206343Test https://hal.science/hal-01206343/documentTest https://hal.science/hal-01206343/file/Cortes-BMCGenetics-2012_%7B54DC9508-4569-47E0-B114-C42441692C13%7D.pdfTest |
| حقوق: | info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.80FC0DA0 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1186/1471-2156-13-58 |
|---|