Data/hora: 08/06/2024 02:18:30

Biblioteca(s): | Embrapa Semiárido.
Data corrente: | 01/03/2023
Data da última atualização: | 02/05/2023
Autoria: | NASCIMENTO, T. L. do; BARROS, J. R. A.; OLIVEIRA, G. M. de; SANTOS, C. B. dos; VOLTOLINI, T. V.; ANTONIO, R. P.; ANGELOTTI, F.
Afiliação: | TIAGO LIMA DO NASCIMENTO, Bolsista Facepe; JULIANE RAFAELE ALVES BARROS, Bolsista Facepe; GILMARA MOREIRA DE OLIVEIRA, Bolsista CNPq; CAMILA BARBOSA DOS SANTOS, UPE; TADEU VINHAS VOLTOLINI, CPATSA; RAFAELA PRISCILA ANTONIO, CPATSA; FRANCISLENE ANGELOTTI, CPATSA.
Título: | Genetic diversity of Macroptilium accessions considering the increase in air temperature.
Ano de publicação: | 2023
Fonte/Imprenta: | Bioscience Journal, v. 39, e39028, 2023.
DOI: | https://doi.org/10.14393/BJ-v39n0a2023-65634
Idioma: | Inglês
Conteúdo: | Climate changes can influence the genetic diversity of forage plants, which may contribute to theimprovement and development of new species. Therefore, this research aimed to evaluate the influence of temperature increase on the genetic diversity of Macroptilium accessions based on morphoagronomic descriptors. The experiment was carried out in a growth chamber in a 2×16 factorial arrangement (temperature regimes x Macroptilium accessions), with the temperatures consisting of T1 (20?26?33 °C) and T2 (24.8?30.8?37.8 °C) and 16 accessions. Eleven morphoagronomic descriptors allowed estimating the diversity among accessions. The measurements of genetic dissimilarity enabled us to observe the genetic distance between the studied materials, standing out the accessions T1.M3 and T2.S4 as the most divergent (446.01). The morphoagronomic descriptors percentage of leaves and stem diameter were the most efficient for estimating the diversity between access. Genetic variability points to the adaptation of Macroptilium accessions in the climate change scenario. The accessions more divergent can be explored in genetic breeding programs for the species aiming at the expansion of genetic variability as an adaptation mechanism to heat stress.
Palavras-Chave: | Diversidade genética; Melhoramento de planta; Variabilidade genética.
Thesagro: | Forragem; Mudança Climática; Nutrição Animal; Planta Forrageira.
Thesaurus Nal: | Animal feeding; Climate change; Forage; Macroptilium; Plant breeding.
Categoria do assunto: | L Ciência Animal e Produtos de Origem Animal
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1152015/1/Genetic-diversity-of-Macroptiliumaccessions-considering-the-increase-in-air-temperature-2023.pdf
Registro original: | Embrapa Semiárido (CPATSA)
Exemplares: | CPATSA - (60322-1) - UPC - AP - DD -  -  -  - DIS