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Ying Kong, Jinrong Bai, Lixin Lang, Fang Bao, Xiaoying Dou, Huan Wang, and Hongzhong Shang

levels of volatiles. The scent profiles of lily cultivars within the same hybrid groups were similar to some extent, and the differences among hybrid groups reflect their pedigree. The major scent compounds of the Oriental hybrids were ( E )-β

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Viji Sitther, Dapeng Zhang, Sadanand A. Dhekney, Donna L. Harris, Anand K. Yadav, and William R. Okie

Rosaceae family ( Aranzana et al., 2002 , Downey and Iezzoni, 2000 ), including peach, in which pedigree analysis of cultivars with known or controversial parentage has been accomplished ( Cipriani et al., 1999 ; Dirlewanger et al., 2002 ). The U

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Eric T. Stafne and John R. Clark

In a database system that allows for quick and accurate querying, PediTrack generates pedigrees in an easily understandable format. Other pedigree programs are available commercially, but are often expensive, specific to certain organisms, or unadaptable for specific programmatic use. PediTrack allows a personal computer (PC) user with Microsoft Access version 2000 or higher to use the simple program without charge. This software is widely available and easily adaptable to a variety of breeding program functions. PediTrack does not perform any calculations, so the initial program size is small (<2 megabytes). The program consists solely of the basic framework for housing pedigree information and reporting pedigrees based on those records.

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Gen-Fa Zhu and Dong-Mei Li

structure of D. officinale was identified by AFLP ( Li et al., 2008 ). In the present study, we collected 37 native species of Dendrobium in China and 63 hybrid cultivars of Dendrobium originated from Japan and Korea. The pedigree of some hybrid

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Xinwang Wang, Phillip A. Wadl, Cecil Pounders, Robert N. Trigiano, Raul I. Cabrera, Brian E. Scheffler, Margaret Pooler, and Timothy A. Rinehart

their pedigree show resistance to two common fungal diseases that affect crapemyrtles, powdery mildew and leaf spot ( Cercospora lythracearum Heald & Wolf) ( Hagan et al., 1998 ; Williams et al., 1998 ). Lagerstroemia fauriei cultivars also appear to

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Jason D. Zurn, Katie A. Carter, Melinda H. Yin, Margaret Worthington, John R. Clark, Chad E. Finn, and Nahla Bassil

pedigrees consisting of many species from the genus. Except a few regionally important species, nearly all cultivated blackberries contain two or more Rubus species from four ( Allegheniensis , Arguti , Rubus , and Ursini ) of the 12 identified sections

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Shanshan Cao, Stephen Stringer, Gunawati Gunawan, Cecilia McGregor, and Patrick J. Conner

, 1948 ). During the past century, breeding efforts at several locations have led to a large number of muscadine cultivars and hybrids ( Goldy and Onokpise, 2002 ). Cultivar identification and pedigree verification are essential to facilitate breeding

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R. P. Lane and C. D. Robacker

Nineteen cultivars of muscadine grape (Vitis rotundifoli a Michx.) were divided into three classes based on the mean number of shoots developed during micropropagation. The cultivars in each class were then compared for pedigree similarities and common ancestors were identified. It was determined that the difficult to propagate class always had close direct lineage to either `White Male' or `Scuppernong', both selections from the wild. The intermediate class tended to be composed of newer cultivars which were more distantly related to `White Male' and `Scuppernong'. The easy to propagate class had diverse family histories and none of them included either `White Male' or `Scuppernong' for three or more generations. It is hypothesized that some factor, yet undetermined, has an influence on the ability of muscadine grape to be micropropagated.

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Ghassem Tehrani and William Lay

Pedigrees of Wit', `Venus', `Viscount', `Vogue', and `Viva' sweet cherry cultivars (Prunus avium L.) were confirmed with pollen-incompatibility studies. `Hedelfingen', the maternal parent of the last four cultivars, was assigned previously to Incompatibility Group VII (S4S5); however, it was shown that Vineland `Hedelfingen' belongs to Group `O' (Universal Donors) rather than VII. Thus, the parentage of the above cultivars, with the exception of `Vic', is correct as reported when these cultivars were named. `Vie' pedigree is incorrect and it belongs to Group `O' rather than the previously assigned XIII. `Valera' also belongs to Group `O' and the existence of Group XIV (S1S5), with `Valera' as its only representative cultivar, could not be confirmed.

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G. Schroeck, I.L. Goldman, and M.J. Havey

Since the 1930s, more than 130 inbred lines and 60 hybrid cultivars of onion have been released in the public sector in the United States. Other than breeder's reports from the period 1946-1965 and anecdotal information kept by onion workers, no systematic treatment of the pedigree of public onion germplasm releases has been developed. The objective of this research was to collect, characterize, and display the genetic relationships among more than 200 public onion germplasm sources used in the United States since 1931. Pedigree information revealed that most modern onion cultivars in the United States descend from a few open-pollinated populations brought to this country by immigrants. For example, selection in the open-pollinated populations Common Yellow and Silverskin by onion farmers in the eastern U.S. resulted in the formation of Yellow Globe Danvers, which was a precursor to virtually all Eastern storage onion germplasm in the U.S. Open-pollinated populations such Yellow Globe Danvers, Valencia, Sweet Spanish, Bermuda, and Grano formed the foundation germplasm for the first public U.S. onion breeding programs. Findings from this study suggest a relatively narrow germplasm base of public onion germplasm in the United States; however, this narrow pool coexists alongside significant gains through scientific breeding efforts, particularly during the past 75 years.