Close clustering of anthers and stigma in Ipomoea hederacea enhances prezygotic isolation from Ipomoea purpurea.

Experimental evidence that selection favors character displacement in the ivyleaf morning glory.

While there is abundant evidence to suggest that pollinators influence the evolution of plant floral traits, there is little direct evidence that interactions between plant species shape the evolution of such characteristics. The purpose of this study was to determine whether the presence of the morning glory Ipomoea purpurea alters patterns of selection on floral traits of its congener, Ipomoe...

Glyphosate induces transient male sterility in Ipomoea purpurea

Plant death is the most common effect resulting from the application of glyphosate, the active ingredient in the herbicide Roundup1. Individual seedlings of the morning glory, Ipomoea purpurea L. Roth, however, have been shown to exhibit tolerance to glyphosate, surviving after what should have been a lethal dose. Those that grow and reach reproductive maturity often exhibit deformed anthers wi...

Selection for character displacement is constrained by the genetic architecture of floral traits in the ivyleaf morning glory.

Evolutionary theory predicts that interactions between species such as resource competition or reproductive interference will generate selection for character displacement where similar species co-occur. However, the rate and direction of character displacement will depend not only on the strength of selection for trait divergence, but also on the amount of genetic variation for selected traits...

مکان‌یابی مناطق مستعد به آلودگی نیلوفر پیچ (Ipomoea hederacea Jacq) در مرحله جوانه زنی: علف هرز جدیدالورود در اراضی زراعی استان گلستان‬

Genetics of Resistance to the Rust Fungus Coleosporium ipomoeae in Three Species of Morning Glory (Ipomoea)

We examined the genetic basis of resistance to the rust pathogen Coleosporium ipomoea in three host species: Ipomoea purpurea, I. hederacea, and I. coccinea (Convolvulaceae). In crosses between resistant and susceptible individuals, second-generation selfed offspring segregated in ratios that did not differ statistically from the 3:1 ratio indicative of single-gene resistance with the resistant...