The origin of the naked grains of maize
WebbThe origin of the naked grains of maize Yves Vigouroux 2005, Nature The most critical step in maize domestication (Zea mays ssp. mays) was the liberation of the kernel from the hardened, protective casing that … Webb27 okt. 2009 · Modern crops have usually experienced domestication selection and subsequent genetic improvement (post-domestication selection). Chinese waxy maize, which originated from non-glutinous domesticated maize (Zea mays ssp. mays), provides a unique model for investigating the post-domestication selection of maize. In this study, …
The origin of the naked grains of maize
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Webb23 juli 2024 · Domestication is a tractable system for following evolutionary change. Under domestication, wild populations respond to shifting selective pressures, resulting in adaptation to the new ecological niche of cultivation. Owing to the important role of domesticated crops in human nutrition and agriculture, the ancestry and selection … Webb4 maj 2015 · In maize, the grains are borne naked on the exterior of the ear, and the organs that form the fruitcase in teosinte are redeployed to form the internal central axis of the …
Webb1 mars 2011 · Maize was domesticated at least 8700 years ago in the highlands of Mexico. Genome-wide studies have greatly contributed to shed light into the diffusion of maize … Webb14 sep. 2016 · Maize (Zea mays ssp. mays) originated in Mexico and Central America and belongs to the tribe Maydae of the family Poaceae. It possesses over 32,000 genes on ten chromosomes with a genome size of...
Webb1 aug. 2005 · The most critical step in maize (Zea mays ssp. mays) domestication was the liberation of the kernel from the hardened, protective casing that envelops the kernel in … WebbThe Native Americans founded it and it quickly spread to other parts of the world. The Native Americans transformed maize by carefully cultivating. Maize developed from a wild grass called Teosinte that originally grew in Southern Mexico, 7,000 years ago. The Teosinte kernels looked completely different from the kernels of today’s corn or maize.
Webb8 jan. 2015 · The origin of maize (Zea mays mays) in the US Southwest remains contentious, with conflicting archaeological data supporting either coastal 1–4 or …
WebbThe origin of the naked grains of maize. The most critical step in maize (Zea mays ssp. mays) domestication was the liberation of the kernel from the hardened, protective … bs dramatist\u0027sTotal RNA was isolated from immature ears (2–3 cm in length) and other tissues using TRI reagent (Molecular Research Center). Northern blots using ∼12 µg total RNA of sample per lane were performed using standard procedures (see Supplementary Information). Complementary DNA for real-time … Visa mer A W22 × W22:tga1 F2 fine-mapping population of 3,106 plants that segregated for Tga1-maize versus tga1-teosinte1 was generated by self-pollinating F1 hybrids of the parental stocks. … Visa mer After genetic mapping demonstrated that tga1 lies within the BAC c126f15, we shotgun-sequenced it to 7 × coverage (see Supplementary Information). This work produced a final … Visa mer We sequenced the tga1 promoter and coding regions for a set of 16 diverse land races of maize and 12 teosinte individuals (Z. mays ssp. parviglumis) and the outgroup Zea diploperennis (GenBank AY883436–AY883558) … Visa mer The 3′ end of tga1 excluding the SBP-box was amplified by PCR from a tga1 RT–cDNA clone (Supplementary Methods). The PCR fragment was cloned into pET151/D-TOPO vector (Invitrogen) and transformed into … Visa mer bsdq projetWebbThe most critical step in maize (Zea mays ssp. mays) domestication was the liberation of the kernel from the hardened, protective casing that envelops the kernel in the maize … bsd plaza maps