The occurrence of cryptic species among economically important fruit flies strongly affects the development of management tactics for these pests. Tools for studying cryptic species not only facilitate evolutionary and systematic studies, but they also provide support for fruit fly management and quarantine activities. Previous studies have shown that the South American fruit fly, Anastrepha fr...

Accumulating evidence suggests that both visual pathways encode object structural properties (e.g., shape) as well as semantic representations (e.g., categories). In theory, the two codes could coexist in one representation reflecting both visual and semantic information. However, in practice, the recent literature is filling with reports that try to prove one by disproving the other. We presen...

Recent high-resolution quantitative mapping experiments aimed at elucidating the genetics of natural variation for wing shape in fruit-flies suggest that very many genes can subtly influence the trait.

What causes the domesticated tomato Solanum lycopersicum to have sweet, juicy red fruit and large, compound leaves with narrow-tipped leaflets while its distant wild relative, the Peruvian Solanum pennellii, has small, soapy-smelling green fruit with an unpleasant flavor (Matsui et al., 2007) and small compound leaves with thick, rounded leaflets (see figure)? Thoroughly answering this question...

The effects of wild germplasm on tomato fruit shelf life have not yet been completely evaluated. Three different genotypes of Lycopersicon esculentum (a cultivated variety, a homozygote for nor and a homozygote for rin), LA1385 of L. esculentum var. cerasiforme, LA722 of L. pimpinellifolium, and 10 diallel hybrids were assayed. Mean values of fruit shelf life, weight, shape, and mean number of ...

Fruit of 85 varieties of Pakistani dates were collected throughout the harvest season. Appropriate Performa was designed to write the scientific and commonly used properties. These properties included fruit color at Khalal stage, shape, size (length & diameter), color & height of perianth, fruit group (soft, semi-dry, dry), edible stage and the micropyle position and split (wide, narrow, deep)....