Malus orientalis Uglitzk., an important genetic resource to improve domestic apples: characterization and selection of t
- PDF / 1,277,991 Bytes
- 21 Pages / 547.087 x 737.008 pts Page_size
- 2 Downloads / 128 Views
(0123456789().,-volV) ( 01234567 89().,-volV)
Malus orientalis Uglitzk., an important genetic resource to improve domestic apples: characterization and selection of the promising accessions Ali Khadivi
. Farhad Mirheidari . Younes Moradi . Simin Paryan
Received: 30 May 2020 / Accepted: 25 October 2020 Ó Springer Nature B.V. 2020
Abstract Malus orientalis Uglitzk. is considered as one of the probable ancestors of domestic apples (M. 9 domestica) and has valuable traits such as lateblooming, adaptation to a wider array of habitats, and capacity for longer storage of the fruits. In the present investigation, morphological and pomological characteristics of M. orientalis were evaluated. Results showed significant differences among the accessions in terms of the recorded traits. Leaf length ranged from 38.56 to 101.36 mm and leaf width varied from 20.27 to 45.31 mm. Fruit length ranged from 14.69 to 39.98 mm, while fruit width varied from 22.16 to 47.39 mm. Fruits weighted between 4.76 and 36.32 g with an average of 15.28. Fruit weight showed positive and significant correlations with dimensions of leaf and fruit. Principal component analysis (PCA) confirmed that fruit-related characteristics were more important in explaining the variation among the accessions. The dendrogram generated using Ward’s method and Euclidean distance showed that the accessions were placed into two major clusters. The dissimilarity level in terms of morphological and pomological characteristics showed a wide range of phenotypic diversity, allowing the effective selection of parents in various breeding programs, referring to
A. Khadivi (&) F. Mirheidari Y. Moradi S. Paryan Faculty of Agriculture and Natural Resources, Department of Horticultural Sciences, Arak University, Arak 38156-8-8349, Iran e-mail: [email protected]
fruit quality and high yield. The current findings confirmed that conservation of M. orientalis genetic resources is important for future breeding programs. Keywords Genetic resource Wild species Breeding Germplasm Apple
Introduction Oriental apple (Malus orientalis Uglitzk., family Rosaceae) is dispersed in the Caucasus, the south of Russia, in the east of Georgia in Turkey, the mountainous areas of the northern areas of Iran (Rechinger 1963; Vartapetyan and Akhvlediani 1990; Buttner 2001; Volk et al. 2009), as well as in the east, west, and center of Iran (Rechinger 1963; Browicz et al. 1969). This species has dense pubescence on the hypanthium, pedicles and, young shoots (Zhukovsky 1965). Due to its relatively large distribution, M. orientalis is highly diverse in terms of vegetative and fruit-related traits (Fischer and Schmidt 1938; Buttner 2001). This species participates in the domestication of M. 9 domestica by introgression of some traits (Buttner 2001). Some valuable traits of this species such as lateflowering, adaptation to different habitats, and high storage life of fruits can be considered in breeding programs (Forsline et al. 2003). Late-ripening and
123
189
Page 2 of 21
Euphytica (
Data Loading...
