Genetic diversity of banana bunchy top virus isolates from China

RAO, XUE-QIN; WU, ZI-LIN; Zhou, Lin; Sun, Jie; LI, HUA-PING

doi:10.4149//av_2017_02_13

Cited by 1 publication

(1 citation statement)

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“…The centre of origin for M. balbisiana is thought to range from northeast India, the northern limits of south-east Asia, southern China, to the Philippines (Perrier et al, 2009), though presence in the Philippines may be as feral populations introduced by humans (De Langhe et al 2015). Interestingly the centre of origin for the BBTV pathosystem where the maximum degree of BBTV diversity is found (Rao et al, 2017;Stainton et al, 2015) also coincides with this region. One would expect that resistance to BBTV may have also evolved here.…”

Section: Lakatan Plants (Delamentioning

confidence: 75%

Resistance of Musa balbisiana accessions of the Philippines to banana bunchy top virus

Perez

Cueva

Benjamin

et al. 2022

Preprint

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Mitigation of banana bunchy top disease is still a challenge worldwide. BBTD is caused by banana bunchy top virus the most important virus affecting banana. Currently, no cultivar or accession has complete resistance to BBTD. A total of 36 wild Musa spp accessions including 34 Musa balbisiana and two Musa acuminata subsp. errans were screened for resistance against BBTV. In greenhouse tests using viruliferious banana aphids, all Musa balbisiana accessions remained symptomless and BBTV was not detected in any of these plants by PCR at three- and six-months post-inoculation. In contrast, 100 percent disease incidence was recorded in Musa acuminata subsp. errans and in cv. Lakatan susceptible control plants. The PCR-negative Musa balbisiana were then transferred to a field with high BBTV inoculum pressure where they remained symptomless and PCR-negative for up to five years while all cv. Lakatan developed BBTD. This study confirmed the resistance of wild Musa balbisiana accessions to BBTV. It is therefore expected to provide a resource to conventional and marker assisted breeding.

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Section: Lakatan Plants (Delamentioning

confidence: 75%