Bimodal patterns of floral gene expression over the two seasons that kiwifruit flowers develop

Walton, Eric F.; Podivinsky, Ellen; Wu, Rui

doi:10.1034/j.1399-3054.2001.1110318.x

Cited by 58 publications

(47 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Alternatively, the observed differences may be because of variations in climate. Shoot productivity was affected by the time of cane initiation and is thus consistent with flowering potential being set during the first growing season as suggested by Walton et al (2000). The observed differences were probably the result of early initiated canes being on the vine longer than late initiated canes.…”

Section: Discussionsupporting

confidence: 52%

Effect of time of cane initiation on subsequent fruitfulness in kiwifruit

Walton¹,

Richardson

Waller³

et al. 2000

New Zealand Journal of Crop and Horticultural Science

Self Cite

View full text Add to dashboard Cite

The effects of time of cane initiation and the presence of fruit during cane development on production the following season was studied in kiwifruit (Actinidia deliciosa (A. Chev.) C. F. Liang et A. R. Ferguson 'Hayward'). Canes initiated early in the season (before 1 December) were compared with those initiated late in the season (after 1 December). Early initiated canes (separated into those that carried/did not carry fruit during development), and late initiated canes were compared to separate the effects of time of initiation and the presence of fruit. There was no effect of time of cane initiation on budbreak or the proportion of shoots that flowered in the following season. Shoots that developed on early initiated canes were larger and more fruitful H00032 Received 21 August 2000; accepted 20 October 2000than those that developed on late initiated canes. Though late initiated canes produced a greater number of shoots than early initiated canes, the productivity of these shoots was lower, and so cane productivity (per unit length) was similar. Early initiated canes that carried fruit during their development were shorter and produced less fruit the following season than those canes that did not carry fruit during their development, but productivity per unit cane length was similar. Consequently kiwifruit growers should retain early initiated canes during winter pruning and optimise the number of buds laid down per square metre, ignoring their fruiting history.

show abstract

Section: Discussionsupporting

confidence: 52%

Effect of time of cane initiation on subsequent fruitfulness in kiwifruit

Walton¹,

Richardson

Waller³

et al. 2000

New Zealand Journal of Crop and Horticultural Science

Self Cite

View full text Add to dashboard Cite

show abstract

“…Their expression coincides with the time of flowering induction and inflorescence development during the first season and flower initiation and development during the second season (Srinivasan and Mullins, 1981;Gerrath and Posluszny, 1988b;Gerrath, 1993;May, 2000;Carmona et al, 2002). Such a bimodal pattern of expression has also been observed in other temperate woody perennials like kiwifruit (Walton et al, 2001) and apple trees (Sung et al, 1999;Kotoda et al, 2000). In contrast to the expression of VFL, VFUL-L and VAP1 transcripts were not detected in the SAM or in leaf primordia.…”

Section: Discussionmentioning

confidence: 86%

Floral Meristem Identity Genes Are Expressed during Tendril Development in Grapevine

et al. 2004

View full text Add to dashboard Cite

To study the early steps of flower initiation and development in grapevine (Vitis vinifera), we have isolated two MADS-box genes, VFUL-L and VAP1, the putative FUL-like and AP1 grapevine orthologs, and analyzed their expression patterns during vegetative and reproductive development. Both genes are expressed in lateral meristems that, in grapevine, can give rise to either inflorescences or tendrils. They are also coexpressed in inflorescence and flower meristems. During flower development, VFUL-L transcripts are restricted to the central part of young flower meristems and, later, to the prospective carpel-forming region, which is consistent with a role of this gene in floral transition and carpel and fruit development. Expression pattern of VAP1 suggests that it may play a role in flowering transition and flower development. However, its lack of expression in sepal primordia, does not support its role as an A-function gene in grapevine. Neither VFUL-L nor VAP1 expression was detected in vegetative organs such as leaves or roots. In contrast, they are expressed throughout tendril development. Transcription of both genes in tendrils of very young plants that have not undergone flowering transition indicates that this expression is independent of the flowering process. These unique expression patterns of genes typically involved in reproductive development have implications on our understanding of flower induction and initiation in grapevine, on the origin of grapevine tendrils and on the functional roles of AP1-and FUL-like genes in plant development. These results also provide molecular support to the hypothesis that Vitis tendrils are modified reproductive organs adapted to climb.

show abstract

“…Several flowering-related genes, including LFY, TFL1, and AP1 homologs, have been isolated from grapevine (Vitis vinifera L.), citrus (Citrus sinensis Osbeck), kiwifruit (Actinidia deliciosa C. F. Liang & A. R. Ferguson), and apple (Malus domestica Borkh.) (Boss et al, 2001(Boss et al, , 2006Calonje et al, 2004;Carmona et al, 2002;Jeong et al, 1999;Joly et al, 2004;Kotoda et al, 2000Kotoda et al, , 2002Kotoda and Wada, 2005;Pillitteri et al, 2004;Sung et al, 1999Sung et al, , 2000Wada et al, 2002;Walton et al, 2001). We previously isolated and compared LFY and TFL1 homologs from six maloid fruit trees, including Japanese pear and quince, to elucidate the molecular basis of the differences in inflorescence architecture (Esumi et al, 2005); however, the derived amino acid sequences differed only slightly in their primary structures.…”

Section: Introductionmentioning

confidence: 99%

Relationship between Floral Development and Transcription Levels of LEAFY and TERMINAL FLOWER 1 Homologs in Japanese Pear (Pyrus pyrifolia Nakai) and Quince (Cydonia oblonga Mill.)

Esumi

Tao

Yonemori

2007

J. Japan. Soc. Hort. Sci.

View full text Add to dashboard Cite

Using real-time reverse-transcription polymerase chain reaction (real-time RT-PCR) and in situ hybridization, we investigated the temporal and spatial expression of LEAFY (LFY) and TERMINAL FLOWER 1 (TFL1) homologs in Japanese pear (Pyrus pyrifolia) and quince (Cydonia oblonga) buds, in order to elucidate their roles in the flower and inflorescence development of fruit trees in the subfamily Maloideae (Rosaceae). Japanese pear and quince were selected because they are very close phylogenetically but develop distinct inflorescence architectures. Floral differentiation in Japanese pear began in late June to early July in Osaka, Japan, forming a raceme inflorescence with about eight flowers, whereas that in quince took place from late October to November in Nagano, Japan, forming a solitary flower in each floral bud. LFY homolog expression levels in both species increased at the floral differentiation stage and remained at relatively high levels in flower meristems after the flower organ differentiation stage. In contrast, TFL1 homolog expression levels in both species were high in vegetative-stage buds, but decreased significantly just before floral differentiation. Japanese pear TFL1 homologs were expressed in the subepidermal layer of the apical meristem before floral differentiation, whereas those of quince were expressed in the epidermal layer of the apical meristem and leaf primordia. We discuss the possible involvement of maloid LFY and TFL1 homologs in triggering floral differentiation, as well as the involvement of the different spatial expression patterns of TFL1 homologs in the inflorescence architectures of Japanese pear and quince.

show abstract

Bimodal patterns of floral gene expression over the two seasons that kiwifruit flowers develop

Cited by 58 publications

References 22 publications

Effect of time of cane initiation on subsequent fruitfulness in kiwifruit

Effect of time of cane initiation on subsequent fruitfulness in kiwifruit

Floral Meristem Identity Genes Are Expressed during Tendril Development in Grapevine

Relationship between Floral Development and Transcription Levels of LEAFY and TERMINAL FLOWER 1 Homologs in Japanese Pear (Pyrus pyrifolia Nakai) and Quince (Cydonia oblonga Mill.)

Contact Info

Product

Resources

About