For such systems, the breeding goal in purebreds should be to optimize the performance of crossbred descendents.
The first two arise as a consequence of how we sampled test females from the hemiclone families and the third is particular to using the clone-generator system for estimating the breeding values.
The Treaty facilitates access to the genetic materials of the 64 crops in the Multilateral System for research, breeding and training for food and agriculture.
Where apomictic taxa are closely related to automictic relatives, including the Meloidogyne system presented here, allelic divergences may be exaggerated in apomictic species by comparison to automictic species for which the breeding system keeps allelic divergences low or absent.
Development of convertible multiple line cultivars composed of exchangeable multiple isogenic lines, each containing one major resistance gene, might be one way to develop durable resistant cultivars against GLS, as has been the case for rice [ 3], although the breeding systems for ryegrasses are quite different from those of rice because of the nature of outcrossing.
Our research group previously developed a system for breeding Sepiella maindroni, a commercially important fishery species accounting for a large proportion of cuttlefish aquaculture in China, by creating artificial culture cycles capable of rearing at least six generations in captivity (Wei-Wei and Chun-Lin 2009).
And now, we present some characteristics of the breeding system for several species of Psychotria obtained from our studies.
However, no data are currently available on the breeding system for the large majority of plants and, thus, future studies are needed to test this hypothesis.
The Plant Treaty that entered into force more than a decade before the Nagoya Protocol facilitates, in particular, access to genetic materials of the 64 crops in the Multilateral System for the purposes of research, breeding and training for food and agriculture.
