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The anatomical and functional details of the cruciate ligamants of the knee were studied on 20 cadaver knees and 24 fresh knees. Each anterior cruciate ligament was found to consist of 2 parts: a distinct anteromedial band (AMB) and a main posterolateral part. The exact geometry of the ligaments and their relationship to bony landmarks were recorded in(More)
The three species in the Allonemobius socius complex of crickets have recently diverged and radiated across North America. Interestingly, the only barriers to gene flow between these species in zones of secondary contact appear to be associated with fertilization traits - e.g., conspecific sperm precedence and the ability of males to induce females to lay(More)
Tribolium castaneum is a member of the most species-rich eukaryotic order, a powerful model organism for the study of generalized insect development, and an important pest of stored agricultural products. We describe its genome sequence here. This omnivorous beetle has evolved the ability to interact with a diverse chemical environment, as shown by large(More)
The goal of this study was to delineate the consistent anatomical structures in the medial side of the knee and to determine their relationship to one another. One hundred and fifty-four fresh human knee joints were dissected. A three-layered pattern was found in which ligaments could be consistently placed. We have made suggestions regarding the(More)
The anterior structures of forty-eight knees were dissected analyzed quantitatively. Correlations were established among the twelve measured parameters of the distal quadriceps complex. Patellar height, width, and thickness tended to correlate with the dimensions of the soft-tissue structures and not with each other. To a high degree of predictability, the(More)
The lateral structures of the knee can be divided into three distinct layers. The deepest layer, the lateral part of the capsule, divides into two laminae just posterior to the overlying iliotibial tract. These laminae encompass three ligaments: the lateral collateral, the fabellofibular, and the arcuate ligaments. Three major anatomical variations are(More)
Bacillus thuringiensis (Bt) crystal (Cry) proteins are effective against a select number of insect pests, but improvements are needed to increase efficacy and decrease time to mortality for coleopteran pests. To gain insight into the Bt intoxication process in Coleoptera, we performed RNA-Seq on cDNA generated from the guts of Tenebrio molitor larvae that(More)
Postmating, prezygotic phenotypes, especially those that underlie reproductive isolation between closely related species, have been a central focus of evolutionary biologists over the past two decades. Such phenotypes are thought to evolve rapidly and be nearly ubiquitous among sexually reproducing eukaryotes where females mate with multiple partners.(More)
Patellar tracking patterns were studied in 20 cadaver knees. The predominant pattern (Type 1) found in 17 knees included medial shift and medial tilt of the patella with respect to the tibial tubercle during extension of the knee. The remaining three knees (Type 2) showed a tendency toward lateral shift and tilt. Release of the lateral retinaculum had no(More)
An intriguing aspect of the current renaissance in investigations of the genetics of reproductive isolation is that it has been dominated by studies that resemble work done in the 1930s, 1940s, and 1950s. The dominant model organism (Drosophila), research approaches, and traits of interest (sterility and inviability of hybrids) all harken back to this(More)