Fertility studies in the broad bean (Vicia faba L.)

Rowlands, D. G.

doi:10.1038/hdy.1964.30

Cited by 9 publications

(7 citation statements)

References 11 publications

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“…Riedel & Wort (1960) concluded that pollination was not a factor limiting production and the observation that removing the apex of the plant at the right stage can increase the proportion of flowers developing pods also suggests that more flowers are fertilized than pods are set (Chapman, Guest & Peat, 1978). Furthermore, flower abortion has been considered a post-fertilization phenomenon caused by embryo abortion (Rowlands, 1960;Chapman, Fagg & Peat, 1979), usually after the 8-to 12-day stage of embryo development (Rowlands, 1964). In this respect field beans are like soya beans in which ovules of abscising flowers have pro-embryos of 4-8 cells (Abemethy et al 1977).…”

Section: Introductionmentioning

confidence: 99%

Estimates of the frequency of fertilization in field beans (Vicia faba L.)

1983

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SUMMARYFertilization of four field bean cultivars was examined in irrigated and non-irrigated plots. The overall fertilization of the ovules examined was 33%; in irrigated plots it was 25% and in non-irrigated plots, 41%. Only 48% of fully formed flowers had at least one fertilized ovule. Fertilized ovules occurred most frequently at the first ovule position in the ovary (nearest the stigma), and this frequency declined at successive ovule positions. There was in general a higher fertilization percentage at the upper flowering nodes while fertilization percentage dropped from the first flower position in a raceme to the last. At all the flowering nodes and raceme-flower positions, the cultivars Erfordia and Outlook generally had a higher fertilization frequency than Maris Bead or TI. The significance of these results is discussed.

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Section: Introductionmentioning

confidence: 99%

Estimates of the frequency of fertilization in field beans (Vicia faba L.)

1983

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“…The accession PI 577746 not only possessed a high level of intra-accession variation at the molecular level but also segregated for flower color in the field. Considering the documented, very frequently occurring self-incompatibility in natural faba bean populations (Rowlands 1964; Terzopoulos et al , 2008), we assume that a substantial amount of genetic variation exists within faba bean landraces or within open-pollinated varieties such as PI 577746. Such variation has profound implication in practical breeding and should be further exploited in developing synthetic varieties to improve faba bean productivity.…”

Section: Discussionmentioning

confidence: 99%

Genetic diversity and relationship among faba bean (Vicia faba L.) germplasm entries as revealed by TRAP markers

Kwon

Coyne

2010

Plant Genet. Res.

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Target region amplification polymorphism markers were used to assess the genetic diversity and relationship among 151 worldwide collected faba bean (Vicia faba L.) entries (137 accessions maintained at the USDA–ARS, Pullman, WA, 2 commercial varieties and 12 elite cultivars and advanced breeding lines obtained from Link of Georg-August University, Germany). Twelve primer combinations (six sets of polymerase chain reaction) amplified a total of 221 markers, of which 122 (55.2%) were polymorphic and could discriminate all the 151 entries. A high level of polymorphism was revealed among the accessions with an estimated average pairwise similarity of 63.2%, ranging from 36.9 to 90.2%. Cluster analysis divided the 151 accessions into five major groups with 2–101 entries each and revealed a substantial association between the molecular diversity and the geographic origin. All 101 accessions in Group V are originated from China and 13 of the 15 accessions in Group II were from Afghanistan. Thirty-two individual plants were sampled from two entries to assess the intra-accession variation. It was found that the advanced inbred line (Hiverna/5-EP1) had very little variation (5.0%), while the original collection (PI 577746) possessed a very high amount of variation (47.1%). This is consistent with the previous reports that faba bean landraces have a high level of outcrossing in production fields and thus contain larger amount variation within each landrace. One implication of this observation for germplasm management is that a relatively larger population is needed in regeneration to mitigate the possible loss of genetic variation due to genetic drift.

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“…Although cross-pollination improves yield stability and resistance to biotic and abiotic stresses [ 13 – 18 ], selection for autofertility could ensure pod and seed set in the absence of pollination services [ 11 , 19 , 20 ]. Previous studies used different parameters to study the autofertility, such as number of seeds per flower, pods per plant and seeds per plant [ 10 , 21 ]. Stoddard [ 22 ] applied complex parameters to describe autofertility, with incidence and effectiveness of pollination, incidence of fertilization in flowers and ovules, and index of fertilization.…”

Section: Introductionmentioning

confidence: 99%

Study and QTL mapping of reproductive and morphological traits implicated in the autofertility of faba bean

et al. 2022

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Autofertility describes the ability of faba bean flowers to self-fertilize thereby ensuring the productivity of this crop in the absence of pollinators or mechanical disturbance. In the legume crop faba bean (Vicia faba L.), lack of autofertility in a context of insufficient pollination can lead to a severe decrease in grain yield. Here we performed the first QTL analysis aimed at identifying the genomic regions controlling autofertility in this crop. We combined pod and seed setting scores from a recombinant inbred population (RIL) segregating for autofertility in different environments and years with measurements of morphological floral traits and pollen production and viability. This approach revealed 19 QTLs co-localizing in six genomic regions. Extensive co-localization was evident for various floral features whose QTLs clustered in chrs. I, II and V, while other QTLs in chrs. III, IV and VI revealed co-localization of flower characteristics and pod and seed set data. The percentage of phenotypic variation explained by the QTLs ranged from 8.9 for style length to 25.7 for stigma angle. In the three QTLs explaining the highest phenotypic variation (R2 > 20), the marker alleles derived from the autofertile line Vf27. We further inspected positional candidates identified by these QTLs which represent a valuable resource for further validation. Our results advance the understanding of autofertility in faba bean and will aid the identification of responsible genes for genomic-assisted breeding in this crop.

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Fertility studies in the broad bean (Vicia faba L.)

Cited by 9 publications

References 11 publications

Estimates of the frequency of fertilization in field beans (Vicia faba L.)

Estimates of the frequency of fertilization in field beans (Vicia faba L.)

Genetic diversity and relationship among faba bean (Vicia faba L.) germplasm entries as revealed by TRAP markers

Study and QTL mapping of reproductive and morphological traits implicated in the autofertility of faba bean

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