Sowing the Seeds of Centromeres

The centromere is a chromatin-based platform that accumulates microtubule-binding proteins that drive chromosome segregation during cell division. Despite their size (on the order of megabases of DNA in mammals) and conserved role, centromeres have the remarkable capacity to leave their usual comfort zone and to reform at a new chromosomal site (1). Although found rarely, these so-called neocentromeres are by most measures bona fide and segregate chromosomes with high fidelity. What accounts for this nomadic behavior?

(Tables 1,2) Viability of Poa trivialis seeds transported to Antarctica from different locations

Antarctic ecosystems are at risk from the introduction of invasive species. The first step in the process of invasion is the transportation of alien species to Antarctic in a viable state. However, the effect of long-distance human-mediated dispersal, over different time-scales, on propagule viability is not well known. We assessed the viability of Poa trivialis seeds transported to Antarctica from the UK, South Africa and Australia by ship or by ship and aircraft. Following transportation to the Antarctic Treaty area, no reduction in seed viability was found, despite journey times lasting up to 284 days and seeds experiencing temperatures as low as -1.5°C. This work confirms that human-mediated transport may overcome the dispersal barrier for some propagules, and highlights the need for effective pre-departure biosecurity measures.

Seed list : a list of forage plant seeds and the incidental seeds commonly found with them.

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The pricing and utilization of legume and grass seeds /

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The seeds of artificial intelligence : SUMEX-AIM /

"March 1980."

Methods for collecting ash (Fraxinus spp.) seeds /

Format not distributed to depository libraries.

Economic factors affecting the sugar beet industry /

Mode of access: Internet.

Adulteration of food. Statutes and cases dealing with coffee, tea, bread, seeds, food and drugs, margarine, milk-blended butter, fertilisers and feeding stuffs, & c, & c,

Mode of access: Internet.

Fruits and seeds of genera in the subfamily Faboideae (Fabaceae) /

Includes bibliographical references (p. 1160-1184) and index.

Cotton oil press official monthly bulletin of the Interstate Cotton Seed Crushers' Association; a journal of research and education in oil seeds and their products.

Mode of access: Internet.

Age and year of collection affect germination of winterfat seeds /

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