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the walnut interspecific crosses were made earlier, from 1878 to 1885, and that his first hybrid was in 1878 and was between J. hindsii × J. regia and the next year the first hybrid was obtained from J. hindsii × J. nigra . He further added that
susceptible as the P. webbii parent, indicating susceptibility follows a dominant mode of inheritance in this cross. This contrasts with our previous finding that a P. persica × P. dulcis interspecific hybrid was not a suitable host for M23 ( Ledbetter
interspecific crosses in cases in which parents varied substantially in genome size ( Fig. 2 ). Hybrids between species in the subgenera Syncarpea and Cynoxylon were readily apparent based on intermediate genome sizes including: C. capitata × C. florida
self-pollinating primary interspecific hybrid, named in honor of Betty Patsche (in whose garden the cross originated; Ascher, et al., 1997a , 1997b ). Mammoth™ ‘Red Daisy’, ‘Coral Daisy’, and ‘White Daisy’ are all advanced generation backcross or
Breeding programs in fruit trees are usually based on the introgression of genes through interspecific distant crosses. These hybridizations produce aborted seeds because their development is arrested at an early stage; therefore, it is difficult
. Asclepias species used with selected phenotypic traits of interest to commercial producers. Hybridization protocol. All interspecific crosses attempted were one-way crosses using A. tuberosa as the female parent. The species used as pollen
open-pollinated cultivar GD was used as the female parent in interspecific crosses. Open-pollinated, vine cultivars of C. moschata , LIC and DF, were used as male parents. Interspecific C. maxima x C. moschata crosses were performed in the field
. indica × L. fauriei ) using a biotin enrichment protocol ( Wang et al., 2007 ) and test their amplification in 33 L. indica cultivars (including interspecific hybrids) and accessions. These polymorphic markers were also tested for cross
Interspecific hybrid embryos resulting from crosses between Phaseolus species generally fail to reach maturity, and embryo rescue techniques are required to recover plants. To determine if ovary (pod) culture could permit interspecific hybrid embryo development, pods of P. vulgaris L. × P. acutifolius A. Gray and P. vulgaris L. (control) were cultured upright, supported by glasswool, in modified Murashige-Skoog liquid medium. The weight of seeds and length of embryos in P. vulgaris pods increased significantly during culture. However, usually only one or occasionally two seeds located at the middle positions of the pods developed to maturity. The same pod culture procedure promoted precocious germination of early cotyledonary-stage P. vulgaris × P. acutifolius embryos without further maturation of the embryos. These findings confirm that developmental arrest of the interspecific hybrid embryos in vivo is due to intrinsic deficiencies.
is an example of hybrid variegation that arises after interspecific crosses in plants with biparental plastid inheritance, resulting in a nonharmonious interaction between the plastids of one parent and the hybrid genome after the “sorting out” of