Sporophytic Self-incompatibility in Ipomoea trifida, a Close Relative of Sweet Potato

Kowyama, Yasuo; Tsuchiya, T.; Kakeda, Katsuyuki

doi:10.1006/anbo.1999.1036

Cited by 48 publications

(44 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Maimoni-Rodella et al (1982) reported fruit set failure after spontaneous self-pollination in I. cairic a, reinf orc ing the pos sibility of occ urrence of sel f-incom pat ibility in th is species. Self-incompatibility has been already reported in some Ipomoea species (Stucky & Beckmann, 1982;Kowyama et al 2000).…”

Section: Resultsmentioning

confidence: 80%

Floral biology and breeding system of three Ipomoea weeds

Maimoni-Rodella

Yanagizawa

2007

Planta daninha

View full text Add to dashboard Cite

-The floral biology of three weeds, Ipomoea cairica, I. grandifolia and I. nil (Convolvulaceae), was studied in Botucatu and Jaboticabal, São Paulo, in southeastern Brazil. The three species are melittophilous, with a varied set of floral visitors, but with some overlapping. Cluster analysis using Jacquard similarity index indicated a greater similarity among different plant species in the same locality than among the populations at different places, in relation to floral visitor sets. The promiscuous and opportunistic features of the flowers were shown, with such type of adaptation to pollination being advantageous to weeds since pollinator availability is unpredictable at ruderal environments.Keywords: pollination, bees, morning-glory. RESUMO -A biologia floral de

show abstract

Section: Resultsmentioning

confidence: 80%

Floral biology and breeding system of three Ipomoea weeds

Maimoni-Rodella

Yanagizawa

2007

Planta daninha

View full text Add to dashboard Cite

show abstract

“…Cross-incompatibility is presumed to result from pollination between parents with the same self-incompatibility phenotype (Kowyama et al, 2008). If cross-pollination takes place and the cross is compatible, then pollen germination occurs on the stigma in about 10 -20 minutes after pollination (Kowyama et al, 2000). Therefore, out-crosses that failed to produce viable seeds such as crosses between Beauregard and CIP 442850, and CIP 443035 and Resisto, indicates existence of cross-incompatibilities among the sweetpotato genotypes studied.…”

Section: Discussionmentioning

confidence: 99%

Genetic incompatibilities in sweetpotato and implications for breeding end-user preferred traits

Baafi¹,

Carey²,

Blay³

et al. 2016

Aust J Crop Sci

View full text Add to dashboard Cite

Sweetpotatoes utilization is low in Ghana due to lack of farmer and consumer preferred cultivars. Poor flowering and incompatibilities among genotypes limit breeding progress in its improvement. The objective was to assess compatibilities among sweetpotato genotypes to select good parents for breeding end-user preferred varieties for increased utilization. Twenty-one genotypes selected from 115 accessions evaluated across three contrasting environments were crossed using full diallel mating scheme. In all, 6388 crosses were carried out and 3214 seeds produced. This study sought to understand the genetic incompatibilities based on the number of seeds set per capsule after self-or cross-fertilization. Lack of flowering or poor flowering, and self-and cross-incompatibilities were major constraints to sweetpotato improvement found. Four genotypes (Histarch, Apomuden, Beauregard, and Ogyefo) were the best parents based on cross compatibilities and they can be used to determine the genetic control of beta-carotene, dry matter and sugar content in sweetpotato. Histarch and Ogyefo are recommended as parents for the development of non-sweet, high dry matter sweetpotato varieties that are the preferred cultivars in Ghana because of their low sugar content. Use of many genotypes in hybridization and establishment of crossing blocks in the minor cropping season is highly recommended.

show abstract

“…Thus, fertilization will not occur neither any seed is formed. Meanwhile in cross-incompatibility, the pollen will germinate on the stigma surface 10-20 minutes after pollination (Kowyama, Tsuchiya, & Kakeda, 2000).…”

Section: Introductionmentioning

confidence: 99%

Normal Seedlings as A New Parameter for Predicting Cross-Incompatibility Level on Sweetpotato

Indriani¹,

Ashari²,

Basuki³

et al. 2017

Agrivita.J.Agr.Sci

View full text Add to dashboard Cite

This research aimed to investigate the incompatibility levels of controlled cross-pollination in sweetpotato, based on normal seedling percentage and their correlation with seed vigour. The controlled cross-pollination in sweetpotato faces issues due to its cross-incompatibility and selfincompatibility characteristics. Currently, the incompatibility level in sweetpotato is investigated based on the fruit set percentage. However, this criterion lacks the ability in accurately predicting the number of new clones. Therefore, it is essential to study new parameters to create a better investigation of incompatibility in sweetpotato. The materials used in this research consisted of eight sweetpotato clones as female and four sweetpotato clones as male parents. Cross-pollinations were done reciprocally. The experiment was conducted at Indonesian Legume and Tuber Crops Research Institute from April to December 2014. The result showed that totally 5,188 times crossing produced about 25% fruit sets and 10% normal seedlings. The use of normal seedlings percentage as a new parameter in evaluating cross-pollination has apparently seemed to be more effective than the fruit sets percentage method because numbers of new clones could be known accurately. This research revealed that the normal seedling could be used as a new parameter in determining the incompatibility level in sweetpotato controlled cross-pollination.

show abstract

Sporophytic Self-incompatibility in Ipomoea trifida, a Close Relative of Sweet Potato

Cited by 48 publications

References 25 publications

Floral biology and breeding system of three Ipomoea weeds

Floral biology and breeding system of three Ipomoea weeds

Genetic incompatibilities in sweetpotato and implications for breeding end-user preferred traits

Normal Seedlings as A New Parameter for Predicting Cross-Incompatibility Level on Sweetpotato

Contact Info

Product

Resources

About