Entries by Rubén Rellán-Álverez

Growth is required for perception of water availability to pattern plant root branches

Plant roots develop on a very heterogeneous environment surrounded by a myriad of environmental clues that can change at different spatiotemporal scales. The ability of roots to sense and respond to these clues is fundamental to ensure an efficient exploration of the rhizosphere. In this paper, Robbins and Dinneny show that root growth is necessary […]

Young inversion with multiple linked QTLs under selection in a hybrid zone

Chromosomal inversions are chromosomal rearrangements that can span several Mb and have been described in several organisms from Drosophila to maize. Inversions suppress recombination and can favor local adaptation and speciation if they capture favorable alleles. It’s not clear though if favorable alleles accumulate in older inversions or, as the Kirkpatrick–Barton model proposes, inversions capture […]

Signatures of local adaptation in lowland and highland teosintes from whole genome sequencing of pooled samples ($)

Teosinte, the ancestor of maize, grows in a range of environments in México. Teosinte parviglumis (Zea mays ssp parviglumis) is more prevalent in lowland regions while teosinte mexicana (Zea mays ssp mexicana) occupies highland territory (>2000 m above sea level). Admixture between parviglumis and mexicana can occur at mid-elevations. Fustier et al. sampled an altitudinal gradient […]