Bunch weight increase is one of the major objectives of banana improvement programs, but little is known about the loci controlling bunch weight and its component traits. Here we report for the first time some genomic loci associated with bunch weight and its component traits in banana as reveale...
Nyine, M.
,
Uwimana, B.
,
Akech, V.
,
Brown, A.
,
Ortiz, R.
,
Doležel, Jaroslav
,
Lorenzen, J.
,
Swennen, R.
,
[Association genetics of bunch weight and its component traits in East African highland banana (Musa spp. AAA group).]
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Association genetics of bunch weight and its component traits in East African highland banana (Musa spp. AAA group).
A field experiment was established in the humid forest of southeastern Nigeria to assess host plant response to nematodes. Fifteen plantain and banana polyploid cultivars (landraces and hybrids) were tested in nematode-infested and non-infested fields on both plant and ratoon crops. The main nema...
Dochez, C.
,
Speijer, P.R.
,
Schutter, B. de
,
Dubois, T.
,
Tenkouano, A.
,
Waele, D. de
,
Ortiz, R.
,
[Host plant resistance and tolerance of Musa landraces and hybrids to nematode infestation]
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Host plant resistance and tolerance of Musa landraces and hybrids to nematode infestation
Bunch orientation is an economically important trait in plantain ( Musa spp. AAB group) and banana ( Musa spp. AAA or ABB groups). Pendulous bunches are more symmetrical than subhorizontal, horizontal, or erect bunches and are, therefore, better adapted for transportation. Erect, horizontal, subh...
Ortiz, R.
,
Vuylsteke, D.R.
,
[Segregation of bunch orientation in plantain and banana hybrids]
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Segregation of bunch orientation in plantain and banana hybrids
Triploid plantains (Musa AAB) are among the most important horticultural crops of West Africa. However, all landraces are susceptible to black Sigatoka, a fungal disease caused by Mycosphaerella fijiensis, Morelet. To ameliorate the spread of this epidemic, exotic triploid cooking bananas (ABB), ...
Ferris, R.S.B.
,
Ortiz, R.
,
Vuylsteke, D.R.
,
[Fruit quality evaluation of plantains, plantain hybrids, and cooking bananas]
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Fruit quality evaluation of plantains, plantain hybrids, and cooking bananas
Dochez, C.
,
Speijer, P.
,
De Waele, D.
,
Ortiz, R.
,
[Host plant response to nematodes in Musa landraces and hybrids]
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Host plant response to nematodes in Musa landraces and hybrids
Several primary tetraploids with desirable attributes have been selected by Musa breeding programs. Diploid parental stocks have become available for further genetic improvement of the Musa genome. Hence, new genome manipulations should be tested before they become routine in breeding programs. T...
Ortiz, R.
,
[Secondary polyploids, heterosis and evolutionary crop breeding for further improvement of the plantain and banana (Musa spp. L) genome]
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Secondary polyploids, heterosis and evolutionary crop breeding for further improvement of the plantain and banana (Musa spp. L) genome
Use of resistant host genotypes is an important component of an integrated approach to control black sigatoka, a disease caused by the fungus Mycosphaerella fijiensis Morelet. The objective of the present research was to determine the role of the major gene for black sigatoka resistance (bs1) in ...
Craenen, K.
,
Ortiz, R.
,
[Effect of the bs 1 gene in plantainbanana hybrids on response to black sigatoka]
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Effect of the bs 1 gene in plantainbanana hybrids on response to black sigatoka
Studies of Musa root systems have generally focused on the high value export dessert bananas. However, a much broader study is required to support the genetic improvement of plantains and cooking bananas. Detailed time course studies of root system development were carried out on 12 genotypes fro...
Blomme, Guy
,
Ortiz, R.
,
[Preliminary evaluation of variability in Musa root system development]
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Preliminary evaluation of variability in Musa root system development
Crouch, J.H.
,
Crouch, H.K.
,
Ortiz, R.
,
Jarret, Robert L.
,
[Microsatellite markers for molecular breeding of Musa]
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Microsatellite markers for molecular breeding of Musa
The annual harvest of banana and plantain (Musa spp.) is approximately 145 million tons worldwide. About 85% of
this global production comes from small plots and kitchen or backyard gardens from the developingworld, and only
15% goes to the export trade. Musa acuminata and Musa balbisiana are the...
Ortiz, R.
,
Swennen, R.L.
,
[From crossbreeding to biotechnologyfacilitated improvement of banana and plantain]
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From crossbreeding to biotechnologyfacilitated improvement of banana and plantain