University of Tehran Iranian Journal of Horticultural Science 2008-482X 53 4 2022 12 22 Molecular studies and the morpho-physiological response of some wild cherry ‎genotypes under drought stress Molecular studies and the morpho-physiological response of some wild cherry ‎genotypes under drought stress 967 976 92260 10.22059/ijhs.2022.339643.2008 FA Sara Jalili Ph.D. Student, Faculty of Agriculture, Tarbiat Modares University, (TMU), Tehran, Iran Kazem Arzani Professor, Faculty of Agriculture, Tarbiat Modares University, (TMU), Tehran, Iran Naser Bouzari Associate Professor, Temperate Fruits Research Center, Horticultural Science Research Institute (HSRI), Agriculture, Education and ‎Extention Organization (AREEO), Karaj, Iran Mahmoud Reza Roozban Assistant Professor, University College of Agriculture and Natural Resources, University of Tehran, Pakdasht, Iran‎ Nima Ahmadi Associate Professor, Faculty of Agriculture, Tarbiat Modares University, (TMU), Tehran, Iran Pedro Martínez-Gómez Professor, CEBAS-CSIC Institute, Espinardo, Murcia, Spain Journal Article 2022 03 06 Cherry (Prunus avium L.) is one of the best fresh fruits, which has a special place and importance in the Iranian fruit industry. Considering the rich germplasm of the Cerasus subgenus in Iran, knowledge of the genetic potential of this subgenus is important for identifying gene reservoirs and developing effective strategies for germplasm conservation. In this study, the seedling of some genotypes in the Cerasus subgenus P. avium, P. microcarpa, and P. incana species was assayed in full and without irrigation conditions performing physiological analysis in response to stress. From a genomic point of view, the genetic diversity of these genotypes seedlings was assessed using simple-sequence repeat markers (SSR). Morphologically, P. microcarpa species showed lower leaf area, height, and diameter compared to P. incana and mainly P. avium. Photosynthesis in seedlings decreased during drought stress, but this decrease was more in Avi-Ala 11 (5,500 µmol CO2 m-2 s-1) compared to Inc-Kho (10,760 µmol CO2 m-2 s-1) and Mic-Kor 3 (10,340 µmol CO2 m-2 s-1). Our results show that both P. microcarpa and P. incana species can be considered drought-resistant rootstock in cherries and a possible genetic source for drought breeders. The results of this research can also help to determine the relationship between phenotypic and genotypic data for the identification of molecular markers associated with drought tolerance. Cherry (Prunus avium L.) is one of the best fresh fruits, which has a special place and importance in the Iranian fruit industry. Considering the rich germplasm of the Cerasus subgenus in Iran, knowledge of the genetic potential of this subgenus is important for identifying gene reservoirs and developing effective strategies for germplasm conservation. In this study, the seedling of some genotypes in the Cerasus subgenus P. avium, P. microcarpa, and P. incana species was assayed in full and without irrigation conditions performing physiological analysis in response to stress. From a genomic point of view, the genetic diversity of these genotypes seedlings was assessed using simple-sequence repeat markers (SSR). Morphologically, P. microcarpa species showed lower leaf area, height, and diameter compared to P. incana and mainly P. avium. Photosynthesis in seedlings decreased during drought stress, but this decrease was more in Avi-Ala 11 (5,500 µmol CO2 m-2 s-1) compared to Inc-Kho (10,760 µmol CO2 m-2 s-1) and Mic-Kor 3 (10,340 µmol CO2 m-2 s-1). Our results show that both P. microcarpa and P. incana species can be considered drought-resistant rootstock in cherries and a possible genetic source for drought breeders. The results of this research can also help to determine the relationship between phenotypic and genotypic data for the identification of molecular markers associated with drought tolerance.

https://ijhs.ut.ac.ir/article_92260_09a9d097ebaf90936611bcc58989e96a.pdf