Petunia: evolutionary, developmental and physiological by João Renato Stehmann, Aline P. Lorenz-Lemke, Loreta B.

By João Renato Stehmann, Aline P. Lorenz-Lemke, Loreta B. Freitas, João Semir (auth.), Tom Gerats, Judith Strommer (eds.)

In 1984, while the 1st variation of this monograph was once released, Petunia was once well-positioned as a classical version procedure to give a contribution considerably to the arrival explosion in plant molecular biology. Its energy used to be fostered by way of years of physiological, biochemical, genetic and cytogenetic study- the contributions of early employees who observed the worth and promise of this horticulturally major consultant of the Solanaceae. the current variation encapsulates the country of Petunia-based learn 1 / 4 of a century later. It paints a wealthy portrait of growth, quite yet no longer completely in evolutionary and developmental biology. The wealth of data provided the following, and the continuing promise of Petunia as a examine method, either persist with from a mix of that sturdy early paintings, the amenability of Petunia to molecular research, and the commitment and collegiality of the Petunia learn group. All are richly documented during this work.

Tom Gerats accomplished his Ph.D. on Petunia flavonoids and transposons on the collage of Amsterdam (1984). He then joined the Genetics division of the loose collage (also in Amsterdam) the place a gaggle was once shaped, headed via Ed Veltkamp, later Jos Mol, to paintings at the molecular elements of flavonoid genes. Tom moved to Marc van Montagu’s staff in Ghent (Belgium) in 1990, the place he endured to paintings on Petunia as a prime approach. In 2001 he got a chair in Plant Genetics on the Radboud college, Nijmegen. beginning together with his paintings as an undergraduate, he has aimed all through his profession to reinforce Petunia’s prestige as a version process for comparative research.

Judy Strommer bought B.S. and M.S. levels from the collage of Chicago and a Ph.D. in Molecular Biology from UCLA. She lives together with her relatives in Guelph, Ontario, the place she is a Professor of Plant Agriculture on the collage of Guelph. She used to be brought to Petunia examine through Tom Gerats at a gathering of the Genetics Society of the USA greater than two decades in the past. present examine in her laboratory consists of research of the legislation of anthocyanin creation in grape and improvement of feed-based vaccines, yet she is still a loyal fan of Petunia and the learn it has encouraged.

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Extra info for Petunia: evolutionary, developmental and physiological genetics

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2005a) accepted P. inflata as distinct from P. integrifolia and pointed 1 The Genus Petunia 13 out the unfolded and straight calyx lobes as useful diagnostic characters. They also reported the existence of a hybrid zone in northwestern Rio Grande do Sul, Brazil. 7. ) Schinz & Thell. (Figs. 4A) – This species is recognized by the following suite of morphological characters: decumbent stems, elliptic or obovate leaves (linear in some coastal populations), funnelform purple corolla, anthers completely opened (flat) after dehiscence, showing the bluish pollen, stigma placed below the anthers of the longest pair of stamens, and deflexed pedicels in the fruiting state.

Ando and Hashimoto (1995) compared their new species only to P. integrifolia, but not to P. scheideana, with which it shares all vegetative and floral attributes. The geographic distribution of P. guarapuavensis is in the more continental region of the Serra Geral, the Guarapuava High Plateau and adjacent areas of Santa Catarina, and must represent only disjunct populations of P. scheideana. 14. Petunia secreta Stehmann & Semir (Figs. 4F) – Petunia secreta is an annual, erect or ascendant, easily recognizable by its purple and salverform corolla, yellow pollen, and erect fruit-stalk.

Integrifolia var. Sm. & Downs [= P. integrifolia subs. ) Stehmann]. Based on analysis of morphological and molecular data (Lorenz-Lemke unpublished data), Stehmann and Bohs (2007) accept two subspecies: P. integrifolia subsp. integrifolia and P. integrifolia subsp. depauperata (Fries) Stehmann & Semir. The former is widespread in the Pampean region of Argentina and Uruguay, as well as in the continental southern part of Rio Grande do Sul, Brazil, while the latter occupies the quaternary deposits along the coast, from the extreme southern Rio Grande do Sul to Florian´opolis, in Santa Catarina.

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