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Xianqin Qiu, Hao Zhang, Hongying Jian, Qigang Wang, Ningning Zhou, Huijun Yan, Ting Zhang, and Kaixue Tang

genetic relationships at the species and generic levels of divergence ( Baldwin et al., 1995 ; Matsumoto et al., 2000 ). The mat K gene in the chloroplast DNA has proved to be very useful for the analysis of large numbers of genotypes ( Leus et al., 2004

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Metka Sisko, Branka Javornik, Aleksander Siftar, and Anton Ivancic

; a stalk as long or longer than fruit; P. pyraster usually thorny, flowers 2 to 2.5 cm across, fruit 1.5 to 3 cm across ( Rehder, 1940 ). Fig. 1. Locations of Pyrus trees included in the study of genetic relationship ( A ); because of the

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Antar Nasr El-Banna, Mohammed Elsayed El-Mahrouk, Mohammed Eraky El-Denary, Yaser Hassan Dewir, and Yougasphree Naidoo

diversity and genetic relationship among 14 accessions of ornamental palms using protein and RAPD markers. Materials and Methods Plant materials. Fourteen accessions of ornamental palms were collected from different areas in Egypt ( Table 1 ). The plant

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Xuelin Shen, Yanmei Zhang, Zhao Lei, Yibo Lin, Minxu Cao, Yueyu Hang, and Xiaoqin Sun

widely applied in genetic relationship analysis of nonheading Chinese cabbage ( Han et al., 2007 ; Li et al., 2008 ; Ma et al., 2012 ). However, the identification results based on molecular evidence were not always consistent with those based on

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Min Deng, Jianjun Chen, Richard J. Henny, and Qiansheng Li

) semioak leaf; 4) spiral leaf; 5) narrow leaf; 6) very narrow leaf; 7) small leaf; 8) interrupted leaf; and 9) recurved leaf. However, information regarding the genetic relationships of cultivated crotons is incomplete. Cytological studies of cultivars

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Mariem Bouhadida, Juan P. Martín, Gennady Eremin, Jorge Pinochet, María Á. Moreno, and Yolanda Gogorcena

usefulness of the method to confirm the maternal origin of Prunus interspecific hybrids; 3) to investigate genetic relationships among Prunus species. The characterization of this plant material and the verification of its pedigree before it is introduced

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Sandra M. Reed and Timothy A. Rinehart

-flowered cultivars. Some presumed synonyms were valid, whereas others were not. Potentially unexploited sources of germplasm within H. macrophylla were identified. The objective of this study was to use SSR markers to study genetic relationships within H

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He Li, Cheng-Jiang Ruan, Li Wang, Jian Ding, and Xing-Jun Tian

and planted on a wide scale. More optimal parental combinations need to be selected for cross breeding, and a key step is to clarify the genetic relationships among cultivars ( Becelaere et al., 2005 ). Molecular markers are widely used as a tool for

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Sandra M. Reed and Timothy A. Rinehart

ssp. macrophylla cultivars. No close genetic relationships between the new double-flower introductions and any of the early European cultivars were observed. The final new introduction from Japan that was included in this study, ‘Frau Fujiyo’, is a

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C.M. Ronning, D.M. Harkins, R.J. Schnell, and L.H. Purdy

Cacao is an important crop in the tropics, but its breeding has been hampered by a lack of understanding of its genetics. One result of this has been the introduction of “hybrid” trees which did not perform predictably under various environmental conditions. We are studying the inheritance of isoenzyme, RFLP, and Random Amplified Polymorphic DNA (RAPD™) markers in order to estimate the genetic relationships among and between populations. Our objectives include determining if any linkage exists between these molecular markers and witches' broom (Crinipellis perniciosa) resistance, a major disease of cacao.